Windshield Washer SolventGM Optikleen® Washer Solvent or equivalent
TIRE INFLATION PRESSURE SPECIFICATIONS
Inflation Pressure Conversion (Kilopascals to Psi)
Refer to the Vehicle Certification-Label for the correct tire inflation pressure and load for the
factory installed tires. The tire pressures may be printed in both kilopascal (kPa) and psi. The
correct tire inflation pressures for the factory installed tires is when the tires are cold. "Cold"
means the vehicle has been sitting for at least 3 hours or driven no more than 1.6 km (1 mi). Inspect
the tires inflation pressure when the tires are cold. One psi equals 6.9 kPa.
or equivalent or lubricant meeting requirements of NLGI #2, Category LB
or GC-LB
10953474) or equivalent
equivalent
equivalent
Conversion: 6.9 kPa=1 psi
MAINTENANCE ITEMS
The Normal Maintenance Replacement Parts information will be found in the Owner's Manual. Refer to the
Maintenance Schedule subsection of the Owner's Manual.
Also see MAINTENANCE/FLUIDS tab.
MAINTENANCE
Page 3
MAINTENANCE SCHEDULE
The Maintenance Schedule information will be found in the Owner's Manual. Refer to the Maintenance
Schedule subsection of the Owner's Manual.
Also see MAINTENANCE/FLUIDS tab.
GM OIL LIFE SYSTEM - RESETTING
See SERVICE REMINDER INDICATORS . This information is no longer published in the service manual.
This information will also be found within Engine Oil Life System in the Owner's Manual. Refer to Category
Service and Appearance Care, then Checking Things Under the Hood, and then subsection Description and
Operation.
You may be able to use the Search information function using the words Oil Life.
NOTE:To determine the appropriate reset procedure, refer to CHANGE TRANS FLUID
MESSAGE RESET INDEX. Only the vehicles listed in this index have a CHANGE
TRANS FLUID MESSAGE reset.
CHANGE TRANS FLUID MESSAGE RESET INDEX
Model & YearReset Procedure
Aurora
1995-99Change Trans Fluid Message Reset - Procedure 4
Concours
1994-98Change Trans Fluid Message Reset - Procedure 1
1999Change Trans Fluid Message Reset - Procedure 2
CTS
2003Change Trans Fluid Message Reset - Procedure 3
2004Change Trans Fluid Message Reset - Procedure 2
DeVille
1992-97Change Trans Fluid Message Reset - Procedure 1
1998-04Change Trans Fluid Message Reset - Procedure 2
Eldorado
1992-98Change Trans Fluid Message Reset - Procedure 1
1999-00Change Trans Fluid Message Reset - Procedure 2
2001-02Change Trans Fluid Message Reset - Procedure 1
Seville
1992-97Change Trans Fluid Message Reset - Procedure 1
1998-04Change Trans Fluid Message Reset - Procedure 2
SRX
2004Change Trans Fluid Message Reset - Procedure 2
CHANGE TRANS FLUID MESSAGE RESET - PROCEDURE 1
This message will appear on the Driver Information Center (DIC) when transaxle fluid change is due. Change
fluid in both the oil pan and side cover.
1. To reset display, turn ignition ON with engine OFF.
2. On the climate control panel, press and hold OFF and REAR DEFOG buttons until TRANS FLUID
RESET message appears in DIC (about 5-20 seconds).
CHANGE TRANS FLUID MESSAGE RESET - PROCEDURE 2
Page 5
The CHANGE TRANS FLUID message will appear on the Driver Information Center (DIC) when transaxle
p
p
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fluid change is due. Percentage of transaxle fluid life remaining may be checked at any time by pressing INFO
button several times until TRANS FLUID LIFE message appears.
1. To reset display, turn ignition key ON with engine OFF.
2. Press the INFO button until TRANS FLUID LIFE message appears.
3. Press and hold INFO RESET button until display shows 100 percent TRANS FLUID LIFE. Transaxle
fluid life index is now reset.
CHANGE TRANS FLUID MESSAGE RESET - PROCEDURE 3
Resetting With Base Audio System
Press CLR button located to the right of the DIC display to acknowledge the CHANGE TRANS FLUID
message. This will clear the message from the display and reset it. To reset transmission fluid life indicator,
ress up or down arrow on INFO button located to the right of the DIC display to access the DIC menu. Once
ercentage TRANS FLUID LIFE menu item is highlighted, press and hold CLR button. Percentage will return
to 100, and transmission fluid life indicator will be reset. Repeat if percentage does not return to 100.
Resetting With Navigation System
Press multifunction button located to the right of the DIC display, next to the OK prompt to acknowledge the
CHANGE TRANS FLUID message. This will clear the message form the display and reset it. To reset
transmission fluid life indicator, turn system on by pressing PWR/VOL knob once. PWR/VOL knob is located
to the lower left of the DIC display. Press INFO button located to the left of the DIC display to access the
VEHICLE INFO menu. Turn TUNE/SEL knob located to the lower right of the DIC display until TRANS
FLUID LIFE is highlighted. Press knob once to select it. Once percentage TRANS FLUID LIFE is displayed,
ress multifunction button next to the RESET prompt in the upper right corner of the display. Percentage will
return to 100, and transmission fluid life indicator will be reset. Repeat if percentage does not return to 100.
CHANGE TRANS FLUID MESSAGE RESET - PROCEDURE 4
1. The Driver Information Center (DIC) displays estimated percentage of the remaining useful life of
transaxle fluid. When remaining fluid life is 0 percent, the display will show CHANGE TRNS FLUID
NOW. After changing transaxle fluid, reset oil life display.
2. To reset the display, turn ignition on with engine off. Press ENG button to select the TRNS FLUID LIFE
percentage display. Then, press and hold in RESET for at least 5 seconds.
3. The word RESET will appear. Then, TRNS FLUID 100 will be displayed.
CHECK ENGINE LIGHT
NOTE:To determine the appropriate reset procedure, refer to CHECK ENGINE LIGHT
RESET INDEX. Only vehicles listed in this index have a check engine light reset.
CHECK ENGINE LIGHT RESET INDEX
Model & YearReset Procedure
Page 6
Geo Tracker
1989-94Check Engine Light Reset - Procedure 1
CHECK ENGINE LIGHT RESET - PROCEDURE 1
Federal Emissions
1. CHECK ENGINE light functions as a service reminder indicator and emission system service. CHECK
ENGINE light will come on each 50,000 miles (PCV and EGR), each 80,000 miles (oxygen sensor) and
each 100,000 miles (charcoal canister) to indicate needed emission system service.
2. After servicing and/or replacing components, reset CHECK ENGINE light by sliding cancel switch to its
opposite position. See CHECK ENGINE LIGHT RESET SWITCH LOCATION (GEO TRACKER)
for switch location.
Fig. 1: Check Engine Light Reset Switch Location (1992-94 Geo Tracker - Federal Emissions)
Courtesy of GENERAL MOTORS CORP.
Page 7
California Emissions
CHECK ENGINE light indicates when it is necessary to have emission system serviced, regardless of mileage.
CHECK ENGINE light comes on briefly when starting as a bulb check. If light does not come on or stays on
constantly, repair as necessary.
FUEL FILTER LIFE
NOTE:To determine the appropriate reset procedure, refer to Fuel Filter Life Reset
Index. Only vehicles listed in this index have a fuel filter life reset.
FUEL FILTER LIFE RESET INDEX
ApplicationReset Procedure
Some ModelsFuel Filter Life Reset - Procedure 1
NOTE:ALWAYS reset the FUEL FILTER LIFE system (if equipped) after a fuel filter
change.
"FUEL FILTER LIFE" message will appear when a reset is performed either by using the steering wheel
controls or performing manual reset procedure.
FUEL FILTER LIFE RESET - PROCEDURE 1
1. On vehicles with steering wheel controls, press and hold the select button for 5 seconds while the FUEL
FILTER LIFE message is displayed. This message will appear on the Driver Information Center (DIC)
for 10 seconds.
2. On vehicles without steering wheel controls, go to next step.
3. Without pressing the pedals, turn the ignition key to the ON position, engine off. Wait 5 seconds.
4. Completely depress the brake and accelerator pedals simultaneously and hold for 10 seconds. The system
is now reset. Turn ignition key OFF.
5. On all vehicles, the next time engine is started, the message will no longer be displayed.
OIL CHANGE REMINDER
NOTE:Most 1981-88 General Motors vehicles do not use a Service Reminder Indicator
(SRI).
NOTE:To determine the appropriate reset procedure, refer to Oil Change Reminders
Reset Index. Only vehicles listed in this index have an oil change reminder
reset.
1. The CHANGE OIL (or CHANGE ENGINE OIL) message is displayed when its time to change engine
oil, usually between 3000 and 7500 miles since last oil change.
2. To reset the oil life monitor, turn the ignition switch to RUN position, with engine off. Press the
TRIP/OIL RESET button on the instrument panel for 12 seconds. The OIL CHANGE light will start to
flash to confirm that system is reset (on some models a chime will also sound). Reset is complete when
OIL CHANGE light goes out.
OIL CHANGE REMINDER RESET - PROCEDURE 2
Engine oil life monitor calculates engine oil temperature and RPM. It indicates when the engine oil is nearly
worn out. A CHANGE OIL light on the instrument cluster is illuminated when it is time to change the engine
oil. To reset CHANGE OIL light:
1. Remove IP fuse block cover (cover can be seen when driver's door is open).
2. Turn ignition ON, engine OFF.
3. Press OIL RESET button and hold for 5 seconds.
4. If Oil Life li
ht does not reset, repeat procedure with ignition OFF.
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OIL CHANGE REMINDER RESET - PROCEDURE 3
Engine oil life monitor calculates engine oil temperature and RPM. It indicates when the engine oil is nearly
worn out. A CHANGE OIL light on the instrument cluster is illuminated when it is time to change the engine
oil.
1. To reset oil life monitor and turn off CHANGE OIL light, turn ignition switch to ON position with engine
off.
2. Depress accelerator pedal to wide open throttle 3 times within 5 seconds. This throttle signal will inform
the PCM to reset the oil life monitor and turn off the light. If light does not turn off, turn ignition off and
repeat procedure.
OIL CHANGE REMINDER RESET - PROCEDURE 4
When the system has calculated that oil life has been diminished, it will indicate that an oil change is necessary.
A CHANGE ENGINE OIL SOON message will come on. Change the engine oil as soon as possible within the
next 600 miles (1,000 km). It is possible that, if driving under the best conditions, the oil life system may not
indicate that an oil change is necessary for over a year. However, the engine oil and filter must be changed at
least once a year and at this time the system must be reset.
Reset Procedure
1. Turn the ignition key to RUN with the engine OFF.
2. Press the INFO and RESET buttons on the Driver Information Center (DIC) at the same time to enter the
personalization menu.
3. Press the INFO button to scroll through the available personalization menu modes until the DIC display
shows OIL-LIFE RESET.
4. Press the INFO and RESET buttons at the same time for one second and release.
5. Press and hold the reset button until the DIC display shows ACKNOWLEDGED. This will tell you the
system has been reset.
6. Turn the key to LOCK/OFF.
Alternate Method (Some Models)
1. Turn the ignition key to RUN with the engine off.
2. Fully press the release the accelerator pedal 3 times within 5 seconds. Several beeps sound. This confirms
the oil life system has been reset.
3. If the CHANGE/OIL message comes back on when you start the engine, the engine oil life system has
not been reset. Repeat the procedure.
OIL CHANGE REMINDER RESET - PROCEDURE 5
Engine oil life monitor calculates engine oil temperature and RPM. It indicates when the oil is nearly worn out.
A CHANGE OIL light on left side of instrument cluster is illuminated when it is time to change oil. To reset oil
life monitor:
Page 15
1. Turn ignition on.
y
2. Depress ENG MET button on trip monitor and release.
3. Within 5 seconds, depress and release ENG MET button again.
4. Within 5 seconds, depress and hold the ENG MET or GAUGES button again. The CHANGE OIL light
should flash.
5. Depress and hold the RANGE or GAUGES button until the CHANGE OIL light stops flashing and goes
out. When the light goes out, the engine oil life monitor is reset. This should take about 10 seconds.
NOTE:If the light does not reset, turn ignition off and repeat the procedure.
OIL CHANGE REMINDER RESET - PROCEDURE 6
The Driver Information Center (DIC) will display a CHANGE OIL message when an oil change is due. The
instrument cluster may also have a CHANGE OIL light. To reset the oil life monitor:
Reset Procedure
1. Turn ignition switch to RUN position, with engine off.
2. Press the TRIP (on some models SELECT or SET/RESET) button, located on the DIC, until the OIL
LIFE display appears. Message will display percentage of oil life remaining.
NOTE:On models without DIC buttons, use the TRIP/ODOMETER reset stem.
3. Press and hold SET/RESET button (on some models, the check-symbol button) on DIC for at least 5
seconds. The message will change to indicate that the Oil Life has been reset. On some models, 3 chimes
will also sound.
4. Turn ignition off.
5. Turn the key to OFF. If the light or message comes back on when you start your vehicle, the oil life
system has not reset. Repeat the procedure.
NOTE:On some models, if oil life system does not reset, try turning ignition OFF after
displaying oil life message. Then press and hold reset button.
Alternate Method (Some Models)
1. Turn the ignition key to RUN with the engine off.
2. Fully press the release the accelerator pedal 3 times within 5 seconds. Several beeps sound. This confirms
the oil life system has been reset.
3. If the CHANGE/OIL message comes back on when you start the engine, the engine oil life system has
not been reset. Repeat the procedure.
OIL CHANGE REMINDER RESET - PROCEDURE 7
When the s
stem has calculated that oil life has been diminished, it indicates that an oil change is necessary. A
Page 16
CHANGE ENGINE OIL SOON message in the DIC comes on. Reset the system whenever the engine oil is
changed so that the system can calculate the next engine oil change. To reset the system:
1. Press the up or down arrow to scroll the DIC to show OIL LIFE.
2. Once the XXX% ENGINE OIL LIFE menu item is highlighted, press and hold the RESET button until
the percentage shows 100%
OIL CHANGE REMINDER RESET - PROCEDURE 8
The CHANGE ENGINE OIL message is displayed when its time to change engine oil, usually between 3000
and 7500 miles since last oil change. The oil change interval is not based on mileage, but on engine revolutions
and engine operating temperature.
1. There are 2 ways to reset the engine oil life monitor. To reset the engine oil life monitor using the
accelerator pedal, go to step 4. To reset the engine oil life monitor using the radio, turn the radio off. Turn
ignition to ACC or ON, with the engine off. Press and hold the DISP (on some models, TUNE DISP)
button (or knob) on the radio for at least 5 seconds until SETTINGS is displayed.
2. Press the SEEK (on some models, SEEK PTYPE or SEEK PSCAN) up or down arrow to scroll through
the main menu. Scroll until OIL LIFE appears on the display. Press the PREV or NEXT button to enter
the sub-menu. RESET will be displayed.
3. Press the DISP/TUNE DISP button to reset. A chime will sound to verify the new setting and DONE will
be displayed for one second. Once the message indicator has been reset, scroll through the menu until
EXIT appears on the display. Press the DISP/TUNE DISP button to exit the program. A chime will sound
to verify the exit.
4. To reset the engine oil life monitor using the accelerator pedal, turn ignition on with engine off. Fully
depress and release the accelerator pedal slowly 3 times within 5 seconds. If CHANGE ENGINE OIL
light flashes, oil life monitor is reset. If the CHANGE ENGINE OIL light comes back on and stays on, oil
life monitor has not reset. Repeat reset procedure.
OIL CHANGE REMINDER RESET - PROCEDURE 9
When the system has calculated that oil life has been diminished, it will indicate that an oil change is necessary.
A CHANGE message will come on. Change the engine oil as soon as possible within the next 600 miles (1000
km). It is possible that, if driving under the best conditions, the oil life may not indicate that an oil change is
necessary for over a year. However, the engine oil and filter must be changed at least once a year and at this
time the system must be reset.
To reset the Engine Oil Life System, do the following:
1. Press and hold the TRIP button on the steering wheel while turning on the ignition. Do not start the
engine.
2. The instrument panel cluster will prompt to clear the service code.
3. Release the button.
4. Press and hold ENTER Switch on the left side of the steering wheel for approximately one second.
5. Turn off the ignition.
Page 17
If the CHANGE ENGINE OIL SOON message comes back on when you start the vehicle, the engine oil life
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system has not reset. Repeat the procedure.
OIL CHANGE REMINDER RESET - PROCEDURE 10
1. Turn ignition ON, with engine off.
2. Press and release reset stem on instrument panel while OIL LIFE message is displayed.
3. Once the alternating OIL LIFE and RESET messages appear, press and hold stem in until several beeps
will sound. This confirms that oil life system has been reset. Turn ignition off or full LOCK position. If
CHANGE OIL messages comes back after starting engine, repeat reset procedure.
OIL CHANGE REMINDER RESET - PROCEDURE 11
Reset Procedure
If vehicle is equipped with a Driver Information Center (DIC), reset oil life monitor by pressing the Driver
Information Center SELECT button for 5 seconds while ENGINE OIL LIFE is displayed.
Alternate Method
To reset the oil life monitor, turn ignition switch to ON or RUN position with engine off. Depress accelerator
edal slowly to wide open throttle 3 times within 5 seconds. If CHANGE ENG OIL light flashes for 5 seconds,
oil life monitor is reset. If the CHANGE ENG OIL light does not flash, oil life monitor has not reset. Repeat
this step.
OIL CHANGE REMINDER RESET - PROCEDURE 12
1. CHANGE OIL SOON light will come on when engine oil has broken down enough to require changing.
After changing oil, reset oil life display.
2. To reset light, turn ignition on. Open glove box to access oil reset button. Press and hold oil reset button
in glove box for at least 5 seconds, but not longer than 60 seconds. The CHANGE OIL SOON light will
flash 4 times to indicate light has been reset.
OIL CHANGE REMINDER RESET - PROCEDURE 13
GM Oil Life System calculates when to change your engine oil and filter based on vehicle use. Anytime oil is
changed, reset the system so it can calculate when the next oil change is required. If a situation occurs where
you change your oil prior to a Change Oil Soon message being turned on, reset the system. After changing the
engine oil, reset the system.
1. Display OIL LIFE RESET on the DIC.
2. Press and hold ENTER button for at least one second. An ACKNOWLEDGED display message will
appear for 3 seconds or until the next button is pressed. This will tell you the system has been reset.
3. Turn key to OFF.
4. If Change Oil Soon message comes back on when you start your vehicle, engine oil life system has not
reset. Repeat the procedure.
Page 18
OIL CHANGE REMINDER RESET - PROCEDURE 14
g
1. To display this light, press the GAGE INFO or GAGES button on the Driver Information Center (DIC).
When oil life index is less than 10 percent, display will show OIL LIFE INDEX CHANGE OIL. After
changing oil, reset system.
2. To reset light, display OIL LIFE INDEX. Hold RESET button for more than 5 seconds. After reset, oil
life will change to 100 percent.
OIL CHANGE REMINDER RESET - PROCEDURE 15
1. CHANGE OIL SOON light will come on when engine oil has broken down enough to require changing.
After changing oil, reset oil life display.
2. To reset light, locate reset button hole under the dash near passenger door. Use a pencil or similar object
to push and hold button (inside hole) for 5 seconds. The CHANGE OIL SOON light will flash 4 times to
indicate light has been reset.
OIL CHANGE REMINDER RESET - PROCEDURE 16
Vehicles WITHOUT Driver Information Center (DIC) Buttons
1. Turn the ignition to ON/RUN, with the engine off. The vehicle must be in P (Park) to access this display.
Press the trip odometer reset stem until OIL LIFE REMAINING displays.
2. Press and hold the trip odometer reset stem until OIL LIFE REMAINING shows "100%." Three chimes
sound and the CHANGE ENGINE OIL SOON message goes off.
3. Turn the key to LOCK/OFF. If the CHANGE ENGINE OIL SOON message comes back on when the
vehicle is started, the engine oil life system has not been reset. Repeat the procedure.
Vehicles WITH Driver Information Center (DIC) Buttons
1. Turn the ignition to ON/RUN position, with the engine off.
2. Press the VEHICLE INFORMATION BUTTON (i) until OIL LIFE REMAINING displays.
3. Press and hold the SET/RESET button (check-mark symbol) until "100%" is displayed. Three chimes
sound (on some models) and the CHANGE ENGINE OIL SOON message goes off.
4. Turn ignition to LOCK/OFF position. If the CHANGE ENGINE OIL SOON message comes back on
when engine is started, repeat reset procedure.
OIL CHANGE REMINDER RESET - PROCEDURE 17
Reset Procedure
1. Turn the ignition to ON, with the engine off.
2. Press the MODE button until the Driver Information Center (DIC) reads OIL LIFE LEFT/HOLD SET
TO RESET.
3. Press and hold the SET button until 100% is displayed. You will hear three chimes and the CHANGE
ENGINE OIL messa
e will go off. Turn the key to OFF.
Page 19
4. If the CHANGE ENGINE OIL message comes back on when engine is started, the engine oil life system
has not reset. Repeat the procedure.
Alternate Method (Some Models)
1. Turn the ignition key to RUN with the engine off.
2. Fully press the release the accelerator pedal 3 times within 5 seconds. Several beeps sound. This confirms
the oil life system has been reset.
3. If the CHANGE/OIL message comes back on when you start the engine, the engine oil life system has
not been reset. Repeat the procedure.
OIL CHANGE REMINDER RESET - PROCEDURE 18
When the system has calculated that oil life has been diminished, it will indicate that an oil change is necessary.
A CHANGE ENGINE OIL message or light will come on. Change the engine oil as soon as possible within the
next 600 miles (1 000 km). It is possible that, if driving under the best conditions, the oil life system may not
indicate that an oil change is necessary for over a year. However, the engine oil and filter must be changed at
least once a year and at this time the system must be reset.
NOTE:Be careful not to reset the oil life display accidentally at any time other than
after the oil is changed. It cannot be reset accurately until the next oil change.
Vehicles with Driver Information Center (DIC)
1. Turn the ignition to ON/RUN with the engine off.
2. Press the DIC MENU button on the turn signal lever to enter the Vehicle Information Menu. Use the
thumbwheel to scroll through the menu items until you reach REMAINING OIL LIFE. See Fig. 2.
3. Press the SET/CLR button (on some models, the check-symbol button) while the oil life display is active.
After a few seconds, there will be a single chime (on some models) and the oil life will be reset to 100%
4. Turn the ignition to LOCK/OFF.
The system is reset when the CHANGE OIL message is off and the REMAINING OIL LIFE 100% message is
displayed.
NOTE:If the CHANGE OIL message comes back on or Code 82 DIC message comes on
when the vehicle is started, the engine oil life system has not been reset.
Repeat the procedure.
Page 20
Fig. 2: Identifying DIC Controls (Turn Signal Lever)
Courtesy of GENERAL MOTORS CORP.
Vehicles without DIC (Some Models)
1. With the engine OFF, turn the ignition key to RUN.
2. Fully press and release the accelerator pedal slowly three times within five seconds.
3. Turn the key to OFF, than start the vehicle.
Reset Using Diagnostic Scan Tool (Some Models)
1. Turn on ignition.
2. Connect scan tool.
3. Select Module Diagnosis.
4. Select Engine Control Module.
5. Select Configuration/Reset function.
6. Select Engine Oil System Reset.
7. Push Enter button to run function.
8. Confirm Executed successfully.
9. Turn ignition of and confirm.
10. Turn ignition on and confirm.
OIL CHANGE REMINDER RESET - PROCEDURE 19
1. The Driver Information Center (DIC) will display remaining oil life as a percentage estimate of the useful
life of oil.
2. When remaining oil life is 10 percent or less, the system will display CHANGE OIL SOON. When oil
life expires, display will show CHANGE ENGINE OIL. After changing oil, reset oil life display.
3. To reset oil life display, press INFORMATION (or INFORMATION SKIP) button to display OIL LIFE
LEFT. Press and hold RESET (or RESET NO) button until 100 OIL LIFE LEFT (0.0 OIL LIFE LEFT on
some early models) is displayed.
Page 21
OIL CHANGE REMINDER RESET - PROCEDURE 20
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y
With Base Audio System
Press up or down arrow on the INFO button located to right of Driver Information Center (DIC) display to
access DIC menu. Once 100 percent ENGINE OIL LIFE menu item is highlighted, press and hold the CLR
button. Percentage will return to 100 and oil life indicator will be reset. Repeat procedure if the percentage does
not return to 100.
With Navigation System
Turn the system on by pressing PWR/VOL knob once. PWR/VOL knob is located to lower left of DIC display.
Press INFO button located to left of the display to access Vehicle Information menu. Turn TUNE/SEL knob
located to lower right of the display until ENGINE OIL LIFE is highlighted. Press TUNE/SEL knob once to
select it. When 100 percent Engine Oil Life is displayed, press multifunction button next to reset prompt in
upper right corner of the display. Percentage will return to 100 and the oil life indicator will be reset. Repeat
rocedure if the percentage does not return to 100.
OIL CHANGE REMINDER RESET - PROCEDURE 21
1. Use the SELECT knob to select OIL LIFE on the DIC menu.
2. Press SELECT to start the OIL LIFE reset procedure.
3. The DIC menu will display "Are you sure that you want to reset?" Use SELECT to choose YES to reset
oil life or NO to exit and return to the previous menu.
4. If YES is selected, the DIC menu will display RESET OIL LIFE for a short time and then 100% OIL
LIFE will be display when OIL LIFE is successfully reset.
OIL CHANGE REMINDER RESET - PROCEDURE 22
With Base Audio System
1. Press the CLR button located to the right of the driver information center (DIC) display to acknowledge
the Change Engine Oil message. This will clear the message from the display and reset it.
2. Press the up or down arrow on the INFO button located to the right of the Driver Information Center
(DIC) display to access the DIC menu.
3. Once 100% ENGINE OIL LIFE menu item is highlighted, press and hold the CLR button. The
percentage will return to 100 and the oil life indicator will be reset. Repeat the steps if the percentage
does not return to 100.
4. Turn OFF the key. If the Change Engine Oil message comes back on when you start the vehicle, the
engine oil life system has not reset. Repeat the procedure.
Without DIC
1. With the engine OFF, turn the ignition key to RUN.
2. Fully press and release the accelerator pedal slowly three times within five seconds.
3. Turn the ke
to OFF, then start the vehicle.
Page 22
With Navigation System
1. Press the multifunction button, next to the OK prompt in the upper right of the display to acknowledge
the Change Engine Oil message. This will clear the message from the display and reset it.
2. Turn the system on by pressing the PWR/VOL knob once. The PWR/VOL knob is located to the lower
left of the driver information center (DIC) display.
3. Press the INFO button located to the left of the display to access the Vehicle Information menu.
4. Turn the TUNE/SEL knob located to the lower right of the display until Engine Oil Life is highlighted.
Press the knob once to select it.
5. Once the 100% Engine Oil Life is displayed, press the multifunction button next to the Reset prompt in
the upper right corner of the display. The percentage will return to 100 and the oil life indicator will be
reset. Repeat the steps if the percentage does not return to 100.
6. Turn OFF the key. If the Change Engine Oil message comes back on when you start the vehicle, the
engine oil life system has not reset. Repeat the procedure.
OIL CHANGE REMINDER RESET - PROCEDURE 23
1. An OIL LIFE INDEX is one of the displays on Driver Information Center (DIC). It will display
remaining oil life as a percentage estimate of the useful life of oil.
2. It will show 100 percent when the system is reset. When the oil life is 0 percent, the display will show
CHANGE ENGINE OIL. After changing oil, reset oil life display.
3. To reset service reminder on 1989 models, press RANGE button until OIL LIFE INDEX appears on
display. Depress and hold in AVG ECON and RANGE buttons for more than 5 seconds or until 100 is
displayed. This will reset remaining oil life to 100 percent.
4. On 1990-93 models, press RANGE button until OIL LIFE INDEX appears on DIC display. Depress and
hold in AVG SPEED and RANGE buttons for more than 5 seconds or until 100 is displayed. This will
reset remaining oil life to 100 percent.
OIL CHANGE REMINDER RESET - PROCEDURE 24
1. An OIL LIFE INDEX is one of 4 displays on Driver Information Center (DIC). It will display remaining
oil life as a percentage estimate of the useful life of oil.
2. Display will show 100 percent when the system is reset. When remaining oil life is 10 percent or less, the
system will display CHANGE OIL SOON. When the oil life expires, the display will show CHANGE
ENGINE OIL. After changing oil, reset oil life display.
3. To reset oil life display, press ENG DATA button until OIL LIFE INDEX appears on DIC display.
Depress and hold in ENG DATA and RANGE buttons until 100 is displayed. This will reset remaining
oil life to 100 percent.
OIL CHANGE REMINDER RESET - PROCEDURE 25
1. An OIL LIFE INDEX is one of the displays on Driver Information Center (DIC). It will display
remaining oil life as a estimated percentage of the useful life of oil.
2. It will show 100 percent when the system is reset. When the oil life is 0 percent, the display will show
CHANGE ENGINE OIL. After performing necessary services, reset service reminder.
Page 23
3. To reset service reminder, turn ignition to on position. Do not start engine. Depress and hold RANGE and
FUEL USED buttons until OIL LIFE INDEX appears on DIC display. Depress and hold RANGE and
RESET buttons for 5-60 seconds.
4. When CHANGE OIL SOON light flashes 4 times, remaining oil life index is reset to 100 percent. If
CHANGE OIL SOON comes on and stays on for 5 seconds, display did not reset. Repeat step 3.
OIL CHANGE REMINDER RESET - PROCEDURE 26
1. Oil change reminder display on the Driver Information Center (DIC) is similar to 1990-91 models, but
reset procedures are different. After changing oil, reset oil life display.
2. To reset, press INFORMATION button to display OIL LIFE INDEX. Press and hold STORE/RECALL
button until 100 is displayed. This will reset oil life display to 100 percent.
OIL CHANGE REMINDER RESET - PROCEDURE 27
1. The Driver Information Center (DIC) displays estimated percentage of the remaining useful life of engine
oil or transaxle fluid. When remaining oil or fluid life is 0 percent, the display will show CHANGE OIL
NOW or CHANGE TRNS FLUID NOW. After changing engine oil or transaxle fluid, reset oil life
display.
2. To reset the display, turn ignition on with engine off. Press ENG button to select the OIL LIFE or TRNS
FLUID LIFE percentage display. Then, press and hold in RESET for at least 5 seconds.
3. The word RESET will appear. Then, OIL LIFE 100 or TRNS FLUID 100 will be displayed.
OIL CHANGE REMINDER RESET - PROCEDURE 28
1. An oil change reminder displays estimated percentage of the remaining useful life of the oil. When engine
is started, a tone will sound and approximate distance to next oil change will be displayed.
2. When remaining oil life is 10 percent or less, the system will calculate distance to next oil change. When
the oil life is 0 percent, the display will show CHANGE OIL NOW. After changing oil, reset oil life
display.
3. To reset the display, press and hold in OIL button to select the oil life display. Then, press and hold in
RESET and OIL buttons for at least 5 seconds. This will reset oil life display to 100 percent.
OIL CHANGE REMINDER RESET - PROCEDURE 29
1. To reset the display, press and release the TEST button.
2. Press and release the OIL button.
3. Press and hold the RESET button for at least 7 seconds. This will reset oil life display to 100 percent.
OIL CHANGE REMINDER RESET - PROCEDURE 30
1. To reset the display, press and release RESET button on Driver Information Center (DIC).
2. Press SEL button (with down arrow) to select OIL.
3. Press SEL button (with left and right arrows) to display oil life.
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4. Press and hold RESET button for about 5 seconds.
5. A reset message will display, then oil life will display 100 percent.
OIL CHANGE REMINDER RESET - PROCEDURE 31
With Information Center Display
OIL LIFE INDEX is one of 4 engine data displays used on models with Information Center display. It will
display remaining oil life as estimated percentage of the useful life of oil. It will show 100 percent when the
system is reset. After changing oil, reset oil life display.
1. To reset the display, press ENG DATA button (1989-90) or OPTIONS button (1991-92) until oil life
index is displayed.
2. Then, press and hold in ENG DATA and GAGE buttons (1989) or RESET/ENTER button (1990-92) for
at least 5 seconds. This will reset remaining oil life to 100 percent.
With Visual Information Center
OIL LIFE is one of the displays used on models with a Visual Information Center (VIC). It will display data
regarding previous oil change. A bar graph display shows full when oil is changed. Bar graph will go down as
vehicle is driven and oil ages. When bar graph reaches CHANGE OIL mark, oil should be changed. After
changing oil, reset oil life display.
1. To reset the display, press INFO hard key and then OIL LIFE soft key to display oil life index.
2. Press RESET soft key.
3. A reset confirmation page will appear and ask if oil has been changed. Press YES soft key to reset bar
graph, and update last oil change date and mileage information.
OIL CHANGE REMINDER RESET - PROCEDURE 32
When the system has calculated that oil life has been diminished, it will indicate that an oil change is necessary.
A CHANGE ENGINE OIL SOON message will come on. Change the engine oil as soon as possible within the
next 600 miles (1000 km). It is possible that, if driving under the best conditions, the oil life system may not
indicate that an oil change is necessary for over a year. However, the engine oil and filter must be changed at
least once a year and at this time the system must be reset.
To reset the Engine Oil Life System, do the following:
1. With the CHANGE OIL SOON message displayed, press any of the three driver information center (DIC)
buttons to clear the CHANGE OIL SOON message.
2. Display OIL LIFE RESET on the DIC.
3. Press and hold the ENTER button for at least one second. An ACKNOWLEDGED display message will
appear for three seconds or until the next button is pressed. This will tell you the system has reset.
4. Turn the ignition to OFF.
If the CHANGE ENGINE OIL message comes back on when you start the vehicle the Engine Oil Life System
Page 25
has not reset. Repeat the procedure.
OIL CHANGE REMINDER RESET - PROCEDURE 33
This vehicle has a computer system that indicates when to change the engine oil and filter. This is based on a
combination of factors which include engine revolutions, engine temperature, and miles driven. Based on
driving conditions, the mileage at which an oil change is indicated can vary considerably. For the oil life system
to work properly, the system must be reset every time the oil is changed. To reset the system:
Reset Procedure
1. Using the DIC controls on the right side of the steering wheel, display REMAINING OIL LIFE on the
driver information center (DIC).
2. Press SEL on the DIC controls and hold SEL down for a few seconds to clear the CHANGE ENGINE
OIL SOON message and reset the oil life at 100%.
NOTE:Be careful not to reset the oil life display accidentally at any time other
than after the oil is changed. It cannot be reset accurately until the next oil
change.
Alternate Method (Some Models)
1. Turn the ignition key to RUN with the engine off.
2. Fully press the release the accelerator pedal 3 times within 5 seconds. Several beeps sound. This confirms
the oil life system has been reset.
3. If the CHANGE/OIL message comes back on when you start the engine, the engine oil life system has
not been reset. Repeat the procedure.
OXYGEN SENSOR REMINDER FLAG
NOTE:To determine the appropriate reset procedure, refer to OXYGEN SENSOR
REMINDER FLAG RESET. Only vehicles listed in this index have an oxygen
sensor reminder flag reset.
OXYGEN SENSOR REMINDER FLAG RESET INDEX
Model & YearReset Procedure
Some Models
1980Oxygen Sensor Reminder Flag - Procedure 1
OXYGEN SENSOR REMINDER FLAG - PROCEDURE 1
1. Every 30,000 miles, a reminder flag appears in speedometer face, indicating service of oxygen sensor is
necessary. See Fig. 3. Inspect and service oxygen sensor as necessary and reset flag.
2. To reset flag, remove instrument panel trim plate. Remove instrument cluster lens. Using pointed tool,
apply light downward pressure on notches of flag until it is reset. An alignment mark will appear in left
Page 26
center of odometer window when flag is fully reset.
Fig. 3: Resetting Reminder Flag
Courtesy of GENERAL MOTORS CORP.
OXYGEN SENSOR WARNING LIGHT
NOTE:To determine the appropriate reset procedure, refer to OXYGEN SENSOR
WARNING LIGHT RESET INDEX. Only vehicles listed in this index have an
oxygen sensor warning light reset.
At 30,000 mile intervals, a SENSOR light in dash will start flashing, indicating oxygen sensor needs
replacement. To reset mileage counter (after sensor replacement), locate SENSOR light cancel switch on right
side of fuse box. Return cancel switch to OFF position. Start engine to ensure light remains off.
SERVICE REMINDER MESSAGE
NOTE:To determine the appropriate reset procedure, refer to Service Reminder Reset
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Index. Only vehicles listed in this index have a Service Reminder reset.
This is an Indirect TPM System. A tire sensor activation tool is not required for this procedure.
(1)
TPMS Reset - Procedure 19
(2)
A tire sensor activation tool cannot be used for this procedure.
TPMS RESET - PROCEDURE 1
NOTE:When the wheels have been rotated, or a tire pressure sensor or EGM/LGM has
been replaced, retrain tire pressure sensors.
NOTE:The DIC will display the "SERVICE TIRE MONITOR" message if one or more of
the tire pressure sensors has malfunctioned or if all of the sensors have not
been programmed successfully. If, after the relearn procedure, the warning
indicators are still on, there is a problem in the TPM system.
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NOTE:If this procedure is performed following replacement and reprogramming of the
Liftgate Module (LGM), DIC may display a low tire pressure fault and all tire
pressures read 0 psi. If this problem occurs, see appropriate manufacturer
service information.
NOTE:The TPM system will cancel the learn mode if more than 2 minutes have passed
and no sensors have been learned, or if the system has been in learn mode for
more than 5 minutes. If the learn mode is canceled before any sensor has been
learned, the EGM/LGM will remember all current sensor IDs and their locations.
As soon as the first sensor ID code is learned, all other IDs are erased from the
EGM/LGM's memory. On models that display the individual tire pressure on DIC,
updated tire pressures will not be displayed until EGM/LGM receives 2 more
valid transmissions from each sensor.
NOTE:Before proceeding with the steps below, ensure that no other sensor learn
procedure is being performed simultaneously, or that tire pressures are not
being adjusted on a TPM equipped vehicle within close proximity.
1. Set the tire pressure of all wheels to pressure specified on the tire and loading information label.
2. Turn ignition ON with engine OFF. Apply parking brake.
NOTE:If Learn Mode cannot be enabled, TPM system is not enabled in EGM/LGM.
See appropriate manufacturer service information.
3. To enable Learn Mode, turn headlight switch from OFF to parking lamps 4 times within 4 seconds. A
double horn chirp will sound and the low tire pressure indicator will begin to flash to indicate the learn
mode has been enabled.
4. Starting with left front tire, hold a tire sensor activation tool against the side wall of the tire, within 3
inches of the valve stem. Activate tool until a horn chirp sounds.
5. After horn chirp has sounded, proceed to the next 3 sensors in the following order: right front, right rear
and left rear.
6. After left rear sensor has been learned, turn ignition switch to OFF position to exit Learn Mode.
7. Test drive the vehicle above 25 mph for at least 2 minutes before viewing tire pressures on DIC.
TPMS RESET - PROCEDURE 2
NOTE:If a tire pressure sensor or the Remote Control Door Lock Receiver (RCDLR) is
replaced, or if wheels have been rotated, tire pressure sensor must be retrained.
NOTE:When the tire pressure warning light illuminates and warning message appears
on DIC, immediately check air pressure of all tires and adjust to the specified
pressure. If warning indicators are still on or display shows dashes instead of a
value, there is a problem in the TPM system. See appropriate manufacturer
service information.
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g
NOTE:Under the following conditions, the TPM system may not function properly:
If one or more of the tire pressure sensors are missing or inoperable.
A compact spare tire is used.
NOTE:If a tire pressure sensor or the Remote Control Door Lock Receiver (RCDLR) is
replaced, or if wheels have been rotated, tire pressure sensor must be retrained.
NOTE:The relearn procedure must be completed within 15 minutes from when the
vehicle is stationary after being driven at 20 mph (32 km/h), or greater, for 10
seconds.
NOTE:The learn mode will cancel if the ignition is cycled to OFF or if more than 2
minutes has elapsed for any sensor that has not been learned. If the learn mode
is cancelled before the first sensor is learned, the original sensor IDs will be
maintained. If the learn mode is canceled after the first sensor is learned, the
following will occur:
All stored sensor IDs will be invalidated in the RCDLR memory.
If equipped, the DIC will display dashes instead of tire pressures.
DTC C0775 will be set.
These conditions will now require the learn procedure to be repeated for the
system to function properly.
IMPORTANT: Ensure that no other learn procedure is being performed simultaneously or that
tire pressures are not being adjusted on another TPM equipped vehicle within
close proximity. Stray signals from other TPM equipped vehicles just driving by
can be inadvertently learned. If any random horn chirps are heard from the
vehicle while performing the learn procedure, most likely a stray sensor has
been learned and the procedure will need to be cancelled and repeated. Under
these circumstances, performing the TPM Learn Procedure away from other
vehicles would be highly recommended. In the event a particular sensor
activation does not cause the horn to chirp, it may be necessary to rotate the
wheel valve stem to a different position due to the sensor signal is being
blocked by another component.
1. Turn ignition switch to ACC position. Apply parking brake.
2. Set the tire pressure of all wheels to pressure specified on the tire and loading information label.
3. To enable Learn Mode:
On vehicles equipped with keyless entry, simultaneously press the keyless entry transmitters lock
and unlock buttons until a double horn chirp sounds indicating the Learn Mode has been enabled.
On vehicles with DIC, a TIRE LEARN messa
e may be displayed. The left front turn signal will
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also be illuminated.
On vehicles not equipped with keyless entry, press and release the driver information center (DIC)
INFO button until the TIRE LEARN message appears on the DIC display. Press and hold the
SET/RESET button until a double horn chirp sounds indicating the Learn Mode has been enabled.
The left front turn signal will also be illuminated.
4. Ignition ON.
5. Starting with left front tire, hold a tire sensor activation tool against the side wall of the tire, within 3
inches of the valve stem. Activate tool until a horn chirp sounds.
6. After horn chirp has sounded, proceed to the next 3 sensors in the following order: right front, right rear
and left rear.
7. After left rear sensor has been learned, turn ignition switch to OFF position to exit Learn Mode.
TPMS RESET - PROCEDURE 3
NOTE:If a tire pressure sensor or the Remote Control Door Lock Receiver (RCDLR) is
replaced, or if wheels have been rotated, tire pressure sensor must be
relearned.
NOTE:When the tire pressure warning light illuminates and warning message appears
on DIC, immediately check air pressure of all tires and adjust to the specified
pressure. If warning indicators are still on or display shows dashes instead of a
value, there is a problem in the TPM system. See appropriate manufacturer
service information.
NOTE:In vehicles without the "UH3" option, each turn signal will illuminate one at a
time indicating which location is to be learn.
NOTE:The TPM system will cancel the learn mode if more then 2 minutes have passed
and no sensors have been learned, or if the ignition switch is turn to the OFF
position. If the learn mode is canceled before the first ID is learned, the RCDLR
will remember all previously stored IDs and their locations. As soon as the first
sensor ID is learned, all other IDs are erased from the RCDLR's memory. If the
learn mode is canceled after the first ID is learned, the RCDLR will store the IDs
as invalid and the DIC will display dashes instead of tire pressures.
NOTE:Before proceeding with the registration procedure, ensure that no other sensor
learn procedure is being performed simultaneously, or that no tire pressures
are being adjusted on another TPM equipped vehicle within close proximity.
1. Set the tire pressure of all wheels to pressure specified on the tire and loading information label.
2. Turn ignition switch to ACC position. Apply parking brake.
3. Simultaneously press the keyless entry transmitter's lock and unlock buttons until a double horn chirp
sounds, indicating the Learn Mode has been enabled.
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NOTE:The left front turn signal will also illuminate to indicate the learn mode has
been enabled.
4. Starting with left front tire, hold a tire sensor activation tool against the side wall of the tire, within 3
inches of the valve stem. Activate tool until a horn chirp sounds.
5. After horn chirp has sounded and the right turn signal has illuminated, proceed to the next 3 sensors in the
following order: right front, right rear and left rear.
6. After left rear sensor has been learned, a double horn chirp will sound, indicating all 4 sensor IDs have
been learned. Turn ignition switch to OFF position to exit Learn Mode.
TPMS RESET - PROCEDURE 4
NOTE:If the wheels have been rotated, or tire pressure sensor or Remote Control Door
Lock Receiver (RCDLR) is replaced, the TPM system needs to relearn tire
pressure sensor IDs.
NOTE:When the tire pressure warning light illuminates and warning message appears
on DIC, immediately check air pressure of all tires and adjust to the specified
pressure. If warning indicators are still on, there is a problem in the TPM
system. See appropriate manufacturer service information.
NOTE:The TPM system will cancel Learn Mode if ignition is turned off, if more than 1
or 2 minutes has passed and no sensors have been learned, vehicle battery
voltage is less than 8 volts, all 4 sensors have been learned, or if the RCDLR
has been in Learn Mode for more than 5 minutes. If Learn Mode is cancelled
before any IDs are learned, the RCDLR will remember all previously stored IDs
and their locations. As soon as the first sensor ID is learned, all other IDs are
erased from the RCDLR's memory.
NOTE:Before proceeding with the registration procedure, ensure that no other sensor
learn procedure is being performed simultaneously, or that no tire pressures
are being adjusted on another TPM equipped vehicle within close proximity.
1. Set the tire pressure of all wheels to pressure specified on the tire and loading information label.
2. Turn ignition ON with engine OFF.
NOTE:If the TPM Learn Mode cannot be enabled, ensure the TPM option is
enabled in the RCDLR. See appropriate manufacturer service information.
3. Simultaneously press the keyless entry transmitter's lock and unlock buttons until a horn chirp sounds,
indicating Learn Mode has been enabled.
NOTE:If a horn chirp does not sound after 15 seconds, remove, then re-apply
TPM sensor relearn magnet.
Page 36
4. Starting with left front tire, hold a tire sensor activation tool against the side wall of the tire, within 3
inches of the valve stem. Activate tool until a horn chirp sounds.
5. After the horn chirp sounds, proceed to the next 3 sensors in the following order: right front, right rear,
then left rear.
6. After the left rear sensor ID is learned, a double horn chirp will sound, indicating all 4 sensor IDs have
been learned. Turn the ignition switch to OFF position to exit Learn Mode.
TPMS RESET - PROCEDURE 5
NOTE:If the wheels have been rotated, or tire pressure sensor or Remote Control Door
Lock Receiver (RCDLR) is replaced, the TPM system needs to relearn tire
pressure sensor IDs.
NOTE:When the tire pressure warning light illuminates and warning message appears
on DIC, immediately check air pressure of all tires and adjust to the specified
pressure. If warning indicators are still on, there is a problem in the TPM
system. See appropriate manufacturer service information.
NOTE:The TPM system will cancel Learn Mode if ignition is turned off, if more than 1
or 2 minutes has passed and no sensors have been learned, vehicle battery
voltage is less than 8 volts, all 4 sensors have been learned, or if the RCDLR
has been in Learn Mode for more than 5 minutes. If Learn Mode is cancelled
before any IDs are learned, the RCDLR will remember all previously stored IDs
and their locations. As soon as the first sensor ID is learned, all other IDs are
erased from the RCDLR's memory.
NOTE:Before proceeding with the registration procedure, ensure that no other sensor
learn procedure is being performed simultaneously, or that no tire pressures
are being adjusted on another TPM equipped vehicle within close proximity.
1. Set the tire pressure of all wheels to pressure specified on the tire and loading information label.
2. Turn ignition ON with engine OFF.
3. Simultaneously press the keyless entry transmitter's lock and unlock buttons until a horn chirp sounds,
indicating Learn Mode has been enabled.
4. Starting with left front tire, hold a tire sensor activation tool against the side wall of the tire, within 3
inches of the valve stem. Activate tool until a horn chirp sounds.
5. After the horn chirp sounds, proceed to the next 3 sensors in the following order: right front, right rear,
then left rear.
6. After the left rear sensor ID is learned, a double horn chirp will sound, indicating all 4 sensor IDs have
been learned. Turn the ignition switch to OFF position to exit Learn Mode.
TPMS RESET - PROCEDURE 6
NOTE:If the wheels have been rotated, or tire pressure sensor or Remote Control Door
Page 37
Lock Receiver (RCDLR) is replaced, the TPM system needs to relearn tire
pressure sensor IDs.
NOTE:When the tire pressure warning light illuminates and warning message appears
on DIC, immediately check air pressure of all tires and adjust to the specified
pressure. If warning indicators are still on, there is a problem in the TPM
system. See appropriate manufacturer service information.
NOTE:The TPM system will cancel Learn Mode if ignition is turned off, if more than 1
or 2 minutes has passed and no sensors have been learned, vehicle battery
voltage is less than 8 volts, all 4 sensors have been learned, or if the RCDLR
has been in Learn Mode for more than 5 minutes. If Learn Mode is cancelled
before any IDs are learned, the RCDLR will remember all previously stored IDs
and their locations. As soon as the first sensor ID is learned, all other IDs are
erased from the RCDLR's memory.
1. Set the tire pressure of all wheels to pressure specified on the tire and loading information label.
2. Turn ignition ON with engine OFF.
3. Press RESET button on DIC in order to clear any warning messages.
4. Press and release OPTIONS button until display is blank.
5. Press and hold RESET button for 3 seconds.
NOTE:If the DIC does not display "TIRE TRAINING" message, ensure TPM option
is enabled in the RCDLR. See appropriate manufacturer service
information.
6. Press and release OPTIONS button until "TIRE TRAINING" is displayed.
7. Press and release RESET button. The DIC should display "LEARN L FRONT TIRE", verifying Learn
Mode has been enabled.
8. Starting with left front tire, hold a tire sensor activation tool against the side wall of the tire, within 3
inches of the valve stem. Activate tool until a horn chirp sounds.
9. After the horn chirp sounds, proceed to the next 3 sensors in the following order: right front, right rear,
then left rear.
10. Turn the ignition switch to OFF position to exit the learn mode.
TPMS RESET - PROCEDURE 7
NOTE:An OEM scan tool or Pressure Increase/Decrease Method is used to perform
this procedure.
NOTE:Before proceeding with this process, ensure that no other learn procedure is
being performed simultaneously or that tire pressures are not being adjusted
on another TPM equipped vehicle within close proximity. Stray signals from
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other TPM equipped vehicles just driving by can be inadvertently learned. If any
random horn chirps are heard from the vehicle while performing the learn
procedure, most likely a stray sensor has been learned and the procedure will
need to be cancelled and repeated. Under these circumstances, performing the
TPM Learn Procedure away from other vehicles would be highly recommended.
In the event a particular sensor activation does not cause the horn to chirp, it
may be necessary to rotate the wheel valve stem to a different position due to
the sensor signal is being blocked by another component.
1. Ignition ON with engine OFF, apply the parking brake.
2. Using a scan tool, initiate the TPM Learn Mode.
3. Perform the procedure by following the menu selections. A double horn chirp will sound and the IPC tire
pressure monitor indicator warning lamp icon will flash indicating Learn Mode is enabled.
4. Starting with the left front tire, active the sensors by one of the following methods:
Hold the antenna of the scan tool, aimed upward, against the tire sidewall close to the wheel rim at
the valve stem location. Press and release the activate button and wait for a horn chirp. Once the
horn chirp has sounded, the sensor information is learned.
Increase/decrease the tire pressure for 8-10 seconds then wait for a horn chirp. The horn chirp may
occur before or up to 30 seconds after the 8-10 second pressure increase/decrease time period has
been reached. Once the horn chirp has sounded, the sensor information has been learned.
5. After the horn chirp has sounded, repeat step 4 for the remaining 3 sensors in the following order: Right
front, Right rear, Left rear.
6. After the left rear sensor is learned, a double horn chirp will sound indicating all sensor IDs have been
learned and the tire pressure module will exit the Learn mode turning OFF the IPC tire pressure monitor
warning indicator lamp icon.
7. Ignition OFF, adjust all tires to the recommended pressures. Refer to the tire placard label.
TPMS RESET - PROCEDURE 8
Automatic Sensor Learn Process
Each TPMS sensor has a unique identification code. The identification code needs to be matched to a new
tire/wheel position after rotating the tires or replacing one or more of the TPMS sensors. When a tire is
installed, the vehicle must be stationary for about 20 minutes before the system recalculates. The following
relearn process takes up to 10 minutes, driving at a minimum speed of 12 mph (19 km/h). A dash (-) or pressure
value will display in the DIC. A warning message displays in the DIC if a problem occurs during the relearn
rocess.
TPMS RESET - PROCEDURE 9
NOTE:If a tire pressure sensor or the Remote Control Door Lock Receiver (RCDLR) is
replaced, or if wheels have been rotated, tire pressure sensor must be
relearned.
NOTE:When the tire pressure warning light illuminates and warning message appears
Page 39
on DIC, immediately check air pressure of all tires and adjust to the specified
pressure. If warning indicators are still on or display shows dashes instead of a
value, there is a problem in the TPM system. See appropriate manufacturer
service information.
NOTE:The TPM system will cancel the learn mode if more then 2 minutes have passed
and no sensors have been learned, or if the ignition switch is turn to the OFF
position. If the learn mode is canceled before the first ID is learned, the RCDLR
will remember all previously stored IDs and their locations. As soon as the first
sensor ID is learned, all other IDs are erased from the RCDLR's memory. If the
learn mode is canceled after the first ID is learned, the RCDLR will store the IDs
as invalid and the DIC will display dashes instead of tire pressures.
NOTE:Before proceeding with the registration procedure, ensure that no other sensor
learn procedure is being performed simultaneously, or that no tire pressures
are being adjusted on another TPM equipped vehicle within close proximity.
1. Set the tire pressure of all wheels to pressure specified on the tire and loading information label.
2. Turn ignition switch to RUN position. Apply parking brake.
3. Simultaneously press the keyless entry transmitter's lock and unlock buttons until a double horn chirp
sounds, indicating the Learn Mode has been enabled.
4. Starting with left front tire, hold a tire sensor activation tool against the side wall of the tire, within 3
inches of the valve stem. Activate tool until a horn chirp sounds.
5. After horn chirp has sounded and the right turn signal has illuminated, proceed to the next 3 sensors in the
following order: right front, right rear and left rear.
6. After left rear sensor has been learned, a double horn chirp will sound, indicating all 4 sensor IDs have
been learned. Turn ignition switch to OFF position to exit Learn Mode.
TPMS RESET - PROCEDURE 10
NOTE:If a tire pressure sensor or the Remote Control Door Lock Receiver (RCDLR) is
replaced, or if wheels have been rotated, tire pressure sensor must be
relearned.
NOTE:When the tire pressure warning light illuminates and warning message appears
on DIC, immediately check air pressure of all tires and adjust to the specified
pressure. If warning indicators are still on or display shows dashes instead of a
value, there is a problem in the TPM system. See appropriate manufacturer
service information.
NOTE:The TPM system will cancel the learn mode if more then 2 minutes have passed
and no sensors have been learned, or if the ignition switch is turn to the OFF
position. If the learn mode is canceled before the first ID is learned, the RCDLR
will remember all previously stored IDs and their locations. As soon as the first
Page 40
sensor ID is learned, all other IDs are erased from the RCDLR's memory. If the
learn mode is canceled after the first ID is learned, the RCDLR will store the IDs
as invalid and the DIC will display dashes instead of tire pressures.
NOTE:Before proceeding with the registration procedure, ensure that no other sensor
learn procedure is being performed simultaneously, or that no tire pressures
are being adjusted on another TPM equipped vehicle within close proximity.
1. Set the tire pressure of all wheels to pressure specified on the tire and loading information label.
2. Depending on ignition type:
With standard ignition switch, place the switch in the RUN position.
With electronic keyless ignition, place the switch in the ACC position.
3. Simultaneously press the keyless entry transmitter's lock and unlock buttons until a double horn chirp
sounds, indicating the Learn Mode has been enabled.
4. Starting with left front tire, hold a tire sensor activation tool against the side wall of the tire, within 3
inches of the valve stem. Activate tool until a horn chirp sounds.
5. After horn chirp has sounded and the right turn signal has illuminated, proceed to the next 3 sensors in the
following order: right front, right rear and left rear.
6. After left rear sensor has been learned, a double horn chirp will sound, indicating all 4 sensor IDs have
been learned. Turn ignition switch to OFF position to exit Learn Mode.
TPMS RESET - PROCEDURE 11
1. Set the tire pressure of all wheels to pressure specified on the tire and loading information label.
2. Set the parking brake.
3. Place the vehicle power mode in ON/RUN/START.
4. Make sure the Tire Pressure info display option is turned on. The info displays on the DIC can be turned
on and off through the Settings menu.
5. Use the five-way DIC control on the right side of the steering wheel to scroll to the Tire Pressure screen
under the DIC info page.
6. Press and hold the SEL button located in the center of the five-way DIC control. The horn sounds twice to
signal the receiver is in relearn mode and the TIRE LEARNING ACTIVE message displays on the DIC
screen
7. Start with the driver side front tire. Place a tire sensor activation tool against the tire sidewall, near the
valve stem. Then press the button to activate the TPMS sensor. A horn chirp confirms that the sensor
identification code has been matched to this tire and wheel position.
8. After horn chirp has sounded, proceed to the next 3 sensors in the following order: right front, right rear
and left rear.
9. After left rear sensor has been learned, the horn sounds two times to indicate the sensor identification
code has been matched to the driver side rear tire, and the TPMS sensor matching process is no longer
active. The TIRE LEARNING ACTIVE message on the DIC display screen goes off.
10. Press STOP to turn the ignition off.
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TPMS RESET - PROCEDURE 12
p
1. Set the tire pressure of all wheels to pressure specified on the tire and loading information label.
2. Set the parking brake.
3. Turn the ignition to ON/RUN with the engine off.
4. Use the MENU button (center console) to select the Vehicle Information Menu in the Driver Information
Center (DIC). Use the arrow keys to scroll to the Tire Pressure screen
5. Press the SET/CLR button to begin the sensor matching process. A message requesting acceptance of the
process should display.
6. Press the SET/CLR button again to confirm the selection. The horn sounds twice to signal the receiver is
in relearn mode and the TIRE LEARNING ACTIVE message displays on the DIC screen.
7. Start with the driver side front tire. Place a tire sensor activation tool against the tire sidewall, near the
valve stem. Then press the button to activate the TPMS sensor. A horn chirp confirms that the sensor
identification code has been matched to this tire and wheel position.
8. After horn chirp has sounded, proceed to the next 3 sensors in the following order: right front, right rear
and left rear.
9. After left rear sensor has been learned, the horn sounds two times to indicate the sensor identification
code has been matched to the driver side rear tire, and the TPMS sensor matching process is no longer
active. The TIRE LEARNING ACTIVE message on the DIC display screen goes off.
10. Turn the ignition to LOCK/OFF.
TPMS RESET - PROCEDURE 13
LOW TIRE PRESSURE light comes on if air pressure in one tire drops to 12 psi (kPa) less than the other 3
tires, if tires are rotated, if tire(s) are repaired or replaced, if air pressure is adjusted or when vehicle battery is
disconnected. Light will stay on until ignition is turned off or RESET button is pressed. Check and adjust air
ressure in all 4 tires before resetting system.
1. There are 2 ways to reset the tire inflation monitor. To reset the tire inflation monitor using the exterior or
interior lamp controls, go to step 4. To reset tire inflation monitor using the radio, turn the radio off. Turn
ignition to ACC or ON, with the engine OFF. Press and hold the TUNE DISP button on the radio for at
least 5 seconds until settings is displayed.
2. To scroll through the main menu:
On Impala, press the SEEK PTYPE up or down arrow.
On Monte Carlo, press the SEEK PSCAN up or down arrow.
On all models, scroll until TIRE MON appears on the display. Press the 1 PREV or 2 NEXT button to
enter the sub-menu. RESET will be displayed.
3. Press the TUNE DISP button to reset. A chime will sound to verify the new setting and DONE will be
displayed for one second. Once the message has been reset, scroll through the menu until EXIT appears
on the display. Press the TUNE DISP button to exit the program. A chime will sound to verify the exit.
4. Reset the tire inflation monitor:
On Impala, using the interior lighting controls, turn the switch from OFF to ON position 3 times
with ignition switch in ON position.
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On Monte Carlo, using the exterior lighting controls, turn the switch from OFF to parking lamps 3
times with ignition switch in ON position.
TPMS RESET - PROCEDURE 14
NOTE:There are 3 different ways to reset the Tire Pressure Monitor (TPM) system.
After resetting, the TPM system requires up to 30 minutes of straight line
driving in each of the 3 speed ranges to complete the calibration process.
Using Exterior Lamp Switch
1. Adjust all tire pressures to the recommended kPa/psi.
2. Turn ignition ON with engine OFF.
3. Cycle the exterior lamp switch from OFF to parking lamps 3 times within 5 seconds.
4. Use the scan tool in order to clear the TPM DTC.
Using RDS Radio, If Equipped
1. Adjust all tire pressures to the recommended kPa/psi.
2. Turn the ignition to ACC or ON, with the engine OFF.
3. Turn the radio OFF.
4. Press and hold the DISP button until SETTINGS is displayed.
5. Press the SEEK up or down arrows until TIRE MON is displayed.
6. Press the PREV or NEXT button to enter the sub-menu. RESET will be displayed.
7. Press the DISP button, A chime will sound and DONE will be displayed.
8. Scroll until EXIT is displayed.
9. Press the DISP button to exit the TPM reset mode. A chime will sound to verify exit.
10. Use the scan tool in order to clear the TPM DTC.
Using Scan Tool
1. Adjust all tire pressures to the recommended kPa/psi.
2. Install the scan tool.
3. Turn ignition ON with engine OFF.
4. With the scan tool select Special Functions.
5. Select TIM Reset.
6. Press the Reset soft key.
7. Use the scan tool in order to clear the TPM DTC.
TPMS RESET - PROCEDURE 15
CHECK TIRE PRESSURE or TIRE PRESS message will come on if air pressure in one tire is lower than the
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other 3 tires, if tires are rotated, if tire(s) are repaired or replaced, or if air pressure is adjusted. Message will
stay on until system is recalibrated. Check and adjust air pressure in all 4 tires before recalibrating system.
NOTE:If vehicle is equipped with Systems Monitor, go to step 2.
1. To recalibrate vehicle equipped with Driver Information Center (DIC), turn ignition ON with engine
OFF. Using the MODE and SELECT button on DIC, change display until TIRE PRESSURE appears.
Press and hold RESET button for 5 seconds. TIRE PRESSURE RESET should now appear on display. If
TIRE PRESSURE RESET does not appear on display after 5 seconds, repair system as necessary. Using
a scan tool, clear TPM DTC.
2. To recalibrate vehicle equipped with Systems Monitor, turn ignition ON with engine OFF. Press and hold
TIRE PRESS RESET button for 5 seconds. TIRE PRESS light on the Systems Monitor should begin to
flash. Release the TIRE PRESS RESET button. TIRE PRESS light should go out and system is now reset.
If TIRE PRESS light does not begin to flash after 5 seconds, repair system as necessary. Using a scan
tool, clear TPM DTC.
TPMS RESET - PROCEDURE 16
CHECK TIRE PRESSURE light comes on if air pressure in one tire drops to 12 psi (kPa) less than the other 3
tires, if tires are rotated, if tire(s) are repaired or replaced, or if air pressure is adjusted. Light will stay on until
ignition is turned off or RESET button is pressed. Check and adjust air pressure in all 4 tires before resetting
system.
1. To reset tire inflation monitor, turn ignition ON with engine OFF. Press and release the RESET button.
RESET button is located inside of driver's side instrument panel fuse block (left end of instrument panel).
The CHANGE OIL indicator light will begin to flash.
2. Press and release the RESET button again. The CHANGE OIL indicator light will turn off, and the
CHECK TIRE PRESSURE indicator light will begin to flash. While the CHECK TIRE PRESSURE
indicator light is flashing, press and hold the RESET button until the chime sounds indicating system is
reset. If CHECK TIRE PRESSURE light does not go out, repeat reset procedure. If system still will not
reset, repair system as necessary.
TPMS RESET - PROCEDURE 17
NOTE:When a spare tire is mounted, a wheel is replaced or rotated, or tire pressure
has been adjusted, TPM system will need to be recalibrated.
NOTE:When the low tire pressure warning messages appear, immediately check air
pressure of all tires and adjust to the specified pressure. If warning messages
are still displayed, there is a malfunction in the TPM system. See appropriate
manufacturer service information.
NOTE:Under the following conditions, the system may not function properly:
More than one tire is low.
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Only one tire is replaced with a new tire during service.
Vehicle is moving faster than 65 mph (105 km/h).
The system is not yet calibrated.
Tire treadwear is uneven.
Compact spare tire is installed.
Tire chains are being used.
Vehicle is being driven on a rough or frozen road.
If ABS warning light is on.
CAUTION: DO NOT recalibrate TPM system until all problems are fixed and tire
pressure in all 4 tires has been adjusted. If recalibration is done when tire
pressures are incorrect, TPM system will not work properly and may not
set an alert when a tire pressure is low or high.
NOTE:There are 2 ways to recalibrate the Tire Pressure Monitor (TPM) system:
Using DIC Reset Button (if no scan tool is available)
Using Scan Tool (if an OBD-II compatible scan tool is available).
Using DIC Reset Button
1. Turn ignition switch to OFF position.
2. Ensure all tire pressures are adjusted to the pressure recommended on tire pressure label.
3. Turn ignition ON with engine OFF.
4. Press SELECT right arrow button until "GAGE" is displayed.
5. Press SELECT down arrow button until "TIRE PRESSURE" is displayed.
6. Press and hold RESET button until "TIRE PRESSURE RESET" is displayed.
7. Release RESET button. DIC should display "TIRE PRESSURE NORMAL".
8. After resetting, the TPM system requires up to 30 minutes of straight line driving in each of the following
speed ranges to complete calibration process:
NOTE:The EBCM learns tire pressure calibration for each speed range
independently. In Monitor Mode 1, EBCM has only partially learned tire
pressure calibration for speed range and has limited detection capability
for a tire pressure condition. In Monitor Mode 2, EBCM has fully learned
tire pressure calibration for speed range and has full detection capability
for a tire pressure condition.
Page 45
p
g
NOTE:Learning process does not need to be completed during a single trip.
Using Scan Tool
1. Turn ignition switch to OFF position.
2. Ensure all tire pressures are adjusted to the pressure recommended on tire pressure label.
3. Connect scan tool. Turn ignition ON with engine OFF.
4. Using scan tool, select "SPECIAL FUNCTIONS".
5. Select "TIRE PRESSURE RESET".
6. Press RESET soft key. A "TIRE PRESSURE NORMAL" message should appear on display.
7. If necessary, use scan tool to clear any TPM Diagnostic Trouble Codes (DTCs).
8. After resetting, the TPM system requires up to 30 minutes of straight line driving in each of the following
speed ranges to complete calibration process:
NOTE:The EBCM learns tire pressure calibration for each speed range
independently. In Monitor Mode 1, EBCM has only partially learned tire
pressure calibration for speed range and has limited detection capability
for a tire pressure condition. In Monitor Mode 2, EBCM has fully learned
tire pressure calibration for speed range and has full detection capability
for a tire pressure condition.
NOTE:Learning process does not need to be completed during a single trip.
TPMS RESET - PROCEDURE 18
The Tire Pressure Monitor (TPM) system alerts the driver when a large change in the pressure of one tire exists,
while the vehicle is being driven. The TPM system uses the Electronic Brake Control Module (EBCM), ABS
wheel speed sensor inputs, class 2 serial data circuit, and the Driver Information Center (DIC) to perform the
system functions. The EBCM contains software to calculate relative tire pressure differences. The software
requires approximately 30 minutes of straight line driving in 3 different speed ranges to complete the calibration
rocess to have full capability for detecting a tire pressure condition. The speed ranges are 15-40 mph, 40-70
mph and 70-90 mph.
1. LOW TIRE PRESSURE light comes on if air pressure in one tire drops to 12 psi less than the other 3
tires, if tires are rotated, if tire(s) are repaired or replaced, if air pressure is adjusted or if vehicle battery is
disconnected. Light will stay on until ignition is turned off or RESET button is pressed. Check and adjust
air pressure in all 4 tires before resetting system.
2. To reset tire inflation monitor, turn ignition ON with engine OFF. Press and release the RESET button.
RESET button is located inside of driver's side instrument panel fuse block (left end of instrument panel).
The CHANGE OIL indicator light will begin to flash.
3. Press and release the RESET button a
ain. The CHANGE OIL indicator light will turn off, and the LOW
Page 46
TIRE PRESSURE indicator light will begin to flash. While the LOW TIRE PRESSURE indicator light is
flashing, press and hold the RESET button until the chime sounds indicating system is reset. If the LOW
TIRE PRESSURE indicator light does not go out, repeat reset procedure. If system still will not reset,
repair system as necessary.
TPMS RESET - PROCEDURE 19
NOTE:After resetting, the tire pressure monitoring (TPM) system requires 60 minutes
or more of driving at a speed of 30 km/h (19 mph) or above to complete the
calibration process to have full capability for detecting a tire pressure
condition.
1. Adjust all tire pressures to the recommended kPa/psi.
2. Turn ignition ON with engine OFF.
3. Press and hold the tire pressure warning reset switch until the tire pressure warning indicator blinks 3
times at one second intervals.
4. If the tire pressure warning indicator does not blink, repeat the procedure starting at step 2.
5. Drive the vehicle for 60 minutes or more at a speed of 30 km/h (19 mph).
6. Verify the system has initialized. Turn ignition ON with engine OFF and observe the tire pressure
warning indicator.
System Initialized: light on for 3 seconds.
System not initialized: light on for 4 seconds.
TPMS RESET - PROCEDURE 20
NOTE:When a spare tire is mounted, a wheel is replaced or rotated, or tire pressure
has been adjusted, TPM system will need to be recalibrated.
CAUTION: DO NOT recalibrate TPM system until all problems are fixed and tire
pressure in all 4 tires has been adjusted. If recalibration is done when tire
pressures are incorrect, TPM system will not work properly and may not
set an alert when a tire pressure is low or high.
NOTE:When the tire pressure warning message appears on DIC, immediately check air
pressure of all tires and adjust to the specified pressure. If warning message is
still displayed, there is a malfunction in the TPM system. See appropriate
manufacturer service information.
NOTE:Under the following conditions, the system may not function properly:
More than one tire is low.
Vehicle is moving faster than 65 mph (105 km/h).
The system is not yet calibrated.
Page 47
Tire treadwear is uneven.
Compact spare tire is installed.
Tire chains are being used.
Vehicle is being driven on a rough or frozen road.
If ABS warning light is on.
NOTE:There are 2 ways to recalibrate the Tire Pressure Monitor (TPM) system:
Using DIC Reset Button (if no scan tool is available)
Using Scan Tool (if an OBD-II compatible scan tool is available).
Using DIC Reset Button
1. Turn ignition switch to OFF position.
2. Ensure all tire pressures are adjusted to the pressure recommended on tire pressure label.
3. Turn ignition ON with engine OFF.
4. Press and hold appropriate button (located on left side of steering column) until "TIRE PRESSURE"
message appears on display:
1997-99 models: Press and hold GAGES button
2000-05 models: Press and hold GAGES INFO button
5. Press and hold RESET button for 5 seconds. After 5 seconds, "TIRE PRESSURE RESET" message
should appear on display.
6. Release RESET button. A "TIRE PRESSURE NORMAL" message should appear on display.
7. After resetting, the TPM system requires up to 30 minutes of straight line driving in each of the following
speed ranges to complete calibration process:
NOTE:The EBCM learns tire pressure calibration for each speed range
independently. In Monitor Mode 1, EBCM has only partially learned tire
pressure calibration for speed range and has limited detection capability
for a tire pressure condition. In Monitor Mode 2, EBCM has fully learned
tire pressure calibration for speed range and has full detection capability
for a tire pressure condition.
NOTE:Learning process does not need to be completed during a single trip.
Using Scan Tool
1. Turn ignition switch to OFF position.
2. Ensure all tire pressures are adjusted to the pressure recommended on tire pressure label.
Page 48
3. Connect scan tool. Turn ignition ON with engine OFF.
4. Using scan tool, select SPECIAL FUNCTIONS.
5. Select TIM RESET.
6. Press RESET soft key. A "TIRE PRESSURE NORMAL" message should appear on display.
7. If necessary, use scan tool to clear any TPM Diagnostic Trouble Codes (DTCs).
8. After resetting, the TPM system requires up to 30 minutes of straight line driving in each of the following
speed ranges to complete calibration process:
NOTE:The EBCM learns tire pressure calibration for each speed range
independently. In Monitor Mode 1, EBCM has only partially learned tire
pressure calibration for speed range and has limited detection capability
for a tire pressure condition. In Monitor Mode 2, EBCM has fully learned
tire pressure calibration for speed range and has full detection capability
for a tire pressure condition.
NOTE:Learning process does not need to be completed during a single trip.
TPMS RESET - PROCEDURE 21
Using Reset Button (1999-05 Models)
1. Adjust all tire pressures to the recommended Psi (kPa). See vehicle's Loading Information Label for
recommended tire pressure. Turn ignition ON with engine OFF.
2. Press and hold the red RESET button located in the passenger side instrument panel fuse block.
3. The LOW TIRE indicator will flash 3 times, then turn off.
4. Use scan tool to clear the TPM DTC.
Using Scan Tool (2003-05 Models)
1. Adjust all tire pressures to the recommended Psi (kPa). See vehicle's Loading Information Label for
recommended tire pressure. Turn ignition ON with engine OFF.
2. Install scan tool. Turn ignition ON with engine OFF.
3. With scan tool, select Special Functions.
4. Select TIM Reset.
5. Press Reset soft key.
6. LOW TIRE indicator will flash 3 times, then turn OFF.
7. Clear the TPM DTC.
TPMS RESET - PROCEDURE 22
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NOTE:When a spare tire is mounted, a wheel is replaced or rotated, or tire pressure
has been adjusted, TPM system will need to be recalibrated.
CAUTION: DO NOT recalibrate TPM system until all problems are fixed and tire
pressure in all 4 tires has been adjusted. If recalibration is done when tire
pressures are incorrect, TPM system will not work properly and may not
set an alert when a tire pressure is low or high.
1. Turn ignition switch to OFF position.
2. Ensure all tire pressures are adjusted to the pressure recommended on tire pressure label.
3. Turn ignition ON with engine OFF.
4. Press and hold the MODE button until DIC display reads "LOW TIRE PRESSURE HOLD SET TO
RESET".
5. Press and hold SET button chime sounds and "TIRE PRESSURE RESET" is displayed and a chime
sounds 3 times.
6. Release SET button and DIC will display "TIRE PRESSURE NORMAL".
NOTE:If low tire pressure warning message is still set, TPM system has not reset.
Repeat procedure. If it does not work after two tries, refer to appropriate
service information.
7. After resetting, the TPM system requires up to 5 miles of driving in each of the following speed ranges to
complete the calibration process:
NOTE:Learning process does not need to be completed during a single trip.
TPMS RESET - PROCEDURE 23
1. Check and adjust air pressure in all 4 tires before resetting system. Refer to tire placard located on the
inside edge of the driver's door. Turn ignition ON, with engine OFF.
2. Press the MODE button on the Driver Information System until LOW TIRE PRESSURE HOLD SET TO
RESET is displayed.
3. Press and hold the SET button until a chime sounds and TIRE PRESSURE RESET is displayed and a
chime sounds 3 times.
4. Release the SET button and TIRE PRESSURE NORMAL will be displayed.
TPMS RESET - PROCEDURE 24
NOTE:When a spare tire is mounted, a wheel is replaced or rotated, or tire pressure
has been adjusted, TPM system will need to be recalibrated.
Page 50
g
CAUTION: DO NOT recalibrate TPM system until all problems are fixed and tire
pressure in all 4 tires has been adjusted. If recalibration is done when tire
pressures are incorrect, TPM system will not work properly and may not
set an alert when a tire pressure is low or high.
1. Turn ignition switch to OFF position.
2. Ensure all tire pressures are adjusted to the pressure recommended on tire pressure label.
3. Turn ignition ON with engine OFF.
4. Press and hold the MODE button until DIC display reads "LOW TIRE PRESSURE HOLD SET TO
RESET".
5. Press and hold SET button until a chime sounds and "TIRE PRESSURE RESET" is displayed.
6. System will now sound a chime 3 times, and DIC will display "TIRE PRESSURE NORMAL".
NOTE:If low tire pressure warning message is still set, TPM system has not reset.
Repeat procedure.
7. After resetting, the TPM system requires up to 5 miles (8 km) of flat, smooth road, straight line driving in
each of the 4 speed ranges (about 10-20 minutes in each range) to complete the calibration process:
NOTE:The EBCM learns tire pressure calibration for each speed range
independently. In Calibration Mode, EBCM has only partially learned
tire pressure calibration for speed range and has limited detection
capability for a tire pressure condition. In Detection Mode, EBCM has
fully learned tire pressure calibration for speed range and has full
detection capability for a tire pressure condition.
NOTE:Learning process does not need to be completed during a single trip.
TPMS RESET - PROCEDURE 25
1. Set the tire pressure of all wheels to pressure specified on the tire and loading information label.
2. Set the parking brake.
3. Turn the ignition to ON/ RUN with the engine OFF or place the vehicle power mode in ON/ RUN/
START. See Fig. 4
.
4. Use the MENU button to select the VEHICLE INFORMATION MENU in the Driver Information Center
(DIC). See Fig. 5.
5. Use the thumbwheel (or up and down arrows) to scroll to the TIRE PRESSURE MENU item screen.
6. Press the SET/CLR button to be
in the sensor matching process. A message requesting acceptance of the
Page 51
process should display.
7. Press the SET/CLR button again to confirm the selection. The horn sounds twice to signal the receiver is
in relearn mode and the TIRE LEARNING ACTIVE message displays on the DIC screen.
8. Starting with left front tire, hold a tire sensor activation tool against the side wall of the tire, within 3
inches of the valve stem. Activate tool until a horn chirp sounds.
9. After horn chirp has sounded and the right turn signal has illuminated, proceed to the next 3 sensors in the
following order: right front, right rear and left rear.
10. After left rear sensor has been learned, a double horn chirp will sound, indicating all 4 sensor IDs have
been learned. Turn ignition switch to OFF position to exit Learn Mode.
Fig. 4: Ignition Positions (Key & Keyless)
Courtesy of GENERAL MOTORS CORP.
Fig. 5: Identifying DIC Controls (Turn Signal Lever)
Page 52
Courtesy of GENERAL MOTORS CORP.
TPMS RESET - PROCEDURE 26
1. Set the tire pressure of all wheels to pressure specified on the tire and loading information label.
2. Set the parking brake.
3. Turn the ignition to ON/RUN with the engine OFF.
4. Up-level Driver Information Center (DIC) Only: Make sure the TIRE PRESSURE INFO page option is
turned on. The info pages on the DIC can be turned on and off through the SETTINGS menu.
5. If the vehicle has an up-level DIC, use the DIC controls (arrow buttons) on the right side of the steering
wheel to scroll to the TIRE PRESSURE screen under the DIC info page. If the vehicle has a base-level
DIC, use the TRIP ODOMETER RESET stem to scroll to the TIRE PRESSURE screen.
6. If the vehicle has an up-level DIC, press and hold the SET/RESET button (check-mark symbol) located in
the center of the DIC controls. If the vehicle has a base-level DIC, press and hold the TRIP ODOMETER
RESET stem for about five seconds. A message asking if the process should begin should appear. Select
YES and press the TRIP ODOMETER RESET stem to confirm the selection.
7. The horn sounds twice to signal the receiver is in relearn mode and the TIRE LEARNING ACTIVE
message displays on the DIC screen.
8. Starting with left front tire, hold a tire sensor activation tool against the side wall of the tire, within 3
inches of the valve stem. Activate tool until a horn chirp sounds.
9. After horn chirp has sounded and the right turn signal has illuminated, proceed to the next 3 sensors in the
following order: right front, right rear and left rear.
10. After left rear sensor has been learned, a double horn chirp will sound, indicating all 4 sensor IDs have
been learned. Turn ignition switch to OFF position to exit Learn Mode.
TPMS RESET - PROCEDURE 27
1. Set the tire pressure of all wheels to pressure specified on the tire and loading information label.
2. Turn ignition switch to ON/RUN position, with engine OFF.
3. Simultaneously press the keyless entry transmitter's lock and unlock buttons until a horn chirp sounds,
indicating Learn Mode has been enabled. The TIRE LEARNING ACTIVE message displays on the DIC
screen.
NOTE:If the vehicle does not have RKE, press the Driver Information Center (DIC)
vehicle information button until the PRESS (check mark symbol) TO
RELEARN TIRE POSITIONS message displays. The horn sounds twice to
signal the receiver is in relearn mode and TIRE LEARNING ACTIVE
message displays on the DIC screen. If the vehicle does not have RKE or
DIC buttons, press the trip odometer reset stem on the instrument cluster
until the PRESS (check mark symbol) TO RELEARN TIRE POSITIONS
message displays. The horn sounds twice to signal the receiver is in
relearn mode and TIRE LEARNING ACTIVE message displays on the DIC
screen.
Page 53
4. Starting with left front tire, hold a tire sensor activation tool against the side wall of the tire, within 3
inches of the valve stem. Activate tool until a horn chirp sounds.
5. After horn chirp has sounded and the right turn signal has illuminated, proceed to the next 3 sensors in the
following order: right front, right rear and left rear.
6. After left rear sensor has been learned, a double horn chirp will sound, indicating all 4 sensor IDs have
been learned. Turn ignition switch to OFF position to exit Learn Mode.
TPMS RESET - PROCEDURE 28
1. Set the tire pressure of all wheels to pressure specified on the tire and loading information label.
2. Set the parking brake.
3. Turn the ignition to ON/ RUN with the engine OFF or place the vehicle power mode in ON/ RUN/
START. See Fig. 4.
4. Make sure the Tire Pressure info page option is turned on. The info pages on the Driver Information
Center (DIC) can be turned on and off through the Settings menu.
5. Use the DIC controls on the right side of the steering wheel to scroll to the Tire Pressure screen under the
DIC info page.
6. Press and hold the SET/RESET button (check mark symbol) located in the center of the DIC controls.
7. The horn sounds twice to signal the receiver is in relearn mode and the TIRE LEARNING ACTIVE
message displays on the DIC screen.
8. Starting with left front tire, hold a tire sensor activation tool against the side wall of the tire, within 3
inches of the valve stem. Activate tool until a horn chirp sounds.
9. After horn chirp has sounded and the right turn signal has illuminated, proceed to the next 3 sensors in the
following order: right front, right rear and left rear.
10. After left rear sensor has been learned, a double horn chirp will sound, indicating all 4 sensor IDs have
been learned. Turn ignition switch to OFF position to exit Learn Mode.
TPMS RESET - PROCEDURE 29
1. Set the tire pressure of all wheels to pressure specified on the tire and loading information label.
2. Set the parking brake.
3. Turn the ignition to ON/RUN with the engine OFF.
4. Press the MENU button once on the Driver Information Center (DIC).
5. Press the up or down arrow button until the Tire Learn screen is displayed.
6. Press and hold the SET/CLR button to begin the sensor matching process.
7. The horn sounds twice to signal the receiver is in relearn mode and the TIRE LEARNING ACTIVE
message displays on the DIC screen.
8. Starting with left front tire, hold a tire sensor activation tool against the side wall of the tire, within 3
inches of the valve stem. Activate tool until a horn chirp sounds.
9. After horn chirp has sounded and the right turn signal has illuminated, proceed to the next 3 sensors in the
following order: right front, right rear and left rear.
10. After left rear sensor has been learned, a double horn chirp will sound, indicating all 4 sensor IDs have
Page 54
b
een learned. Turn ignition switch to OFF position to exit Learn Mode.
TPMS RESET - PROCEDURE 30
1. Set the tire pressure of all wheels to pressure specified on the tire and loading information label.
2. Set the parking brake.
3. Put the vehicle in ON/ RUN and place the vehicle in P (Park).
4. If the Driver Information Center (DIC) display is minimized, press the SELECT knob to maximize it.
5. Use the SELECT knob to scroll to the Tire Pressure display screen.
6. Press and hold the SELECT knob for five seconds to begin the sensor matching process. A message
displays confirming to begin the process.
7. Use the SELECT knob to select YES with the highlighted selection, and press the SELECT knob again to
confirm the selection.
8. The horn sounds twice to signal the receiver is in relearn mode and the TIRE LEARNING ACTIVE
message displays on the DIC screen.
9. Starting with left front tire, hold a tire sensor activation tool against the side wall of the tire, within 3
inches of the valve stem. Activate tool until a horn chirp sounds.
10. After horn chirp has sounded and the right turn signal has illuminated, proceed to the next 3 sensors in the
following order: right front, right rear and left rear.
11. After left rear sensor has been learned, a double horn chirp will sound, indicating all 4 sensor IDs have
been learned. Turn ignition switch to OFF position to exit Learn Mode.
TPMS RESET - PROCEDURE 31
NOTE:You have two minutes to match the first tire/wheel position, and five minutes
overall to match all four tire/wheel positions. If it takes longer, the matching
process stops and must be restarted.
1. Set the tire pressure of all wheels to pressure specified on the tire and loading information label.
2. Set the parking brake.
3. Turn the ignition to ON/RUN with the engine off.
4. Enter the learn sequence from the TPM Learn screen, located under the Customization Menu in the
instrument panel cluster. Press SRCE button until you see Customize Options and then press ENTER (left
pointing arrow). Move the thumbwheel up or down to scroll through the available options. Press ENTER
to select an item. To exit the current menu, or go back, use the thumbwheel to select BACK (left arrow)
at the top of the screen and then press ENTER.
5. Start with the driver side front tire. The driver side front indicator lamp also comes on to indicate that
corner's sensor is ready to be learned. Place a tire sensor activation tool against the tire sidewall, near the
valve stem. Then press the button to activate the TPMS sensor. A horn chirp confirms that the sensor
identification code has been matched to this tire and wheel position
6. After horn chirp has sounded and the right turn signal has illuminated, proceed to the next 3 sensors in the
following order: right front, right rear and left rear.
7. After the driver side rear TPMS sensor has been learned the horn chirps two times. The driver side rear
Page 55
indicator lamp turns off and the TPMS sensor matching process is done. Turn the ignition switch to
LOCK/OFF.
Fig. 6: Identifying DIC Controls
Courtesy of GENERAL MOTORS CORP.
Page 56
GENERAL INFORMATION Air/
Wind Noise - STS
DIAGNOSTIC INFORMATION AND PROCEDURES
AIR/WIND NOISE
Tools Required
J 39570 Chassis Ear. See Special Tools .
J 41416 Ultrasonic Leak Detector
CAUTION: Refer to Assistant Driving Caution in Cautions and Notices.
To analyze a reported windnoise condition, test drive the vehicle to determine the origin of the noise.
Choose a regular route with smooth and straight streets that run in all 4 directions: North, South, East, and
West. The area should have little traffic or little noise in order to eliminate interference with the test.
IMPORTANT: Often there is one primary leak source and one or more secondary leaks that
contribute to the noise condition. Repairing only one of the contributing leak
sources may not completely repair the total condition but only reduce the
condition.
Drive the vehicle at the speed in which the noise was noticed, or until the noise is heard. Maintain safe and legal
speeds.
Many of the waterleak diagnosis tests are also used for the windnoise diagnosis.
Most windnoise is caused either by leaking seals or by misaligned body surfaces. You can diagnose the
following types of windnoise with the aid of J 41416 or J 39570 .
Wind whistle
Wind roar
Wind rush
When moving at highway speeds, air pressure inside the vehicle becomes greater than the air pressure outside.
When a leak occurs, the escaping air causes a hiss or a whistle.
Wind roar occurs when air passes over or through an opening between the 2 body surfaces. To correct the
condition, adjust the alignment to the body surfaces.
Wind rush occurs when air presses over the vehicle's body, and is related to the aerodynamics of the vehicle.
Page 57
Wind whistle and wind roar are repairable. Rule out wind whistle and wind roar before concluding that the wind
noise is due to wind rush.
Use the following inspections in order to aid in diagnosing wind whistle or wind roar:
1. Note the details for wind noise:
The perceived location
The location where the noise is loudest
When the noise occurs
The vehicle speed
The interior fan speed
The position of the windows
What the noise sounds like
2. Inspect the vehicle for the possible cause of the windnoise.
3. Test drive the vehicle and determine if the windnoise is external or internal.
4. Perform a visual inspection of the following components:
Clean the weatherstrips and the contact surfaces with cleaning solvent.
1. Apply powder or chalk in an unbroken line to the contact surface of the weatherstrip surrounding the
perimeter of the suspected areas.
2. Close the panel completely without slamming the panel. Closing the panel completely presses the
weatherstrip firmly against the mating surface.
3. Inspect the applied line on the weatherstrip. The applied line is marred where contact is good. A
corresponding imprint is on the mating surfaces.
4. Gaps or irregularities in the powder or the chalk line on the mating surfaces indicate the areas with a poor
seal.
AIR PRESSURE TEST
1. Mask off both the pressure relief valves.
2. Close all the windows.
3. Turn the vehicles ventilation fan to the on position, with the selector on high speed and in the defrost
mode.
4. Unlock and close the doors.
5. Listen for escaping air along the door and the window seals with a stethoscope or a length of heater hose.
Page 58
SOAP SUDS OR BUBBLE TEST
1. Mask off the pressure relief valves.
2. Close all the windows and the doors.
3. Turn the vehicles ventilation fan to the on position, with the selector on high speed and in the defrost
mode.
4. Unlock and close the doors.
5. Apply the soap solution to the potential leak areas.
6. Look for bubbles revealing escaping air.
REPAIR INSTRUCTIONS
EXTERIOR WINDNOISE
CAUTION: Refer to Assistant Driving Caution in Cautions and Notices.
Exterior windnoise is louder when the vehicle is driven with one or more windows down. Exterior windnoise
occurs when air passes over the body panels, the seams, or the openings. Use the following items during the test
drive in order to aid in the detection of leaks:
Mechanic's stethoscope or heater hose
Masking tape-51 mm (2 in) width
Strip caulk
A water soluble marking pencil
1. While driving, determine the location of the exterior windnoise by lowering one window at a time. If the
location corresponds with the condition in step 2, pull over and make a temporary repair with 51 mm (2
in) wide masking tape.
2. Tape over the gaps and the moldings one at a time. Test between each taping. Taping over the gaps and
moldings will correct the condition.
3. Temporarily repair the condition with masking tape. Adjust the tape when needed.
4. Continue testing in order to determine if the noise has been eliminated or other leak areas exist.
5. When all the reported leak conditions are located, make permanent repairs using the proper alignment
techniques and the sealing materials.
INTERIOR WINDNOISE
CAUTION: Refer to Assistant Driving Caution in Cautions and Notices.
Interior windnoise is not heard when the window is lowered. Interior windnoise is caused by the air leaving the
inside of the vehicle through a seal or a seam.
Page 59
1. Tape over the relief valves to cause added air pressure within the vehicle.
2. Test drive the vehicle and listen for windnoise or a whistle.
3. Pull the vehicle over and make the temporary repairs using masking tape. If you cannot determine the
source of the windnoise, perform one or more of the following diagnostic tests: Tracing Powder or Chalk
Test, Air Pressure Test, Soap Suds or Bubble Test in this sub-section.
SPECIAL TOOLS AND EQUIPMENT
SPECIAL TOOLS
Special Tools
IllustrationTool Number/ Description
J 39570
Chassis Ear
J 41416
Ultrasonic Leak Detector
Page 60
CABIN AIR FILTER
GM - Cadillac CTS & STS
REMOVAL & INSTALLATION
NOTE:Manufacturer's terminology for this filter is passenger compartment air filter or
ventilation filter.
NOTE:Numbers in parenthesis refer to numbers in figures.
CABIN AIR FILTER
Removal
1. Remove the air inlet grille panel. See AIR INLET GRILLE PANEL.
2. With 2 hands, release the tabs on each side of the access cover. Lift up the filter access cover (1). See Fig.
1.
Page 61
Fig. 1: Removing Access Cover
Courtesy of GENERAL MOTORS CORP.
3. Remove the passenger compartment air filter (1) from the filter housing. See Fig. 2. To install filter,
reverse removal procedure.
Page 62
Fig. 2: Removing Passenger Compartment Air Filter From Filter Housing
Courtesy of GENERAL MOTORS CORP.
Installation
1. Install the filter (1) in to the filter housing. See Fig. 2
2. Install the filter access cover (1). See Fig. 1
.
3. Install the air inlet grille panel.
AIR INLET GRILLE PANEL
Removal
1. Open the hood. Remove the windshield wiper arms. See WINDSHIELD WIPER ARMS.
2. Remove the rear hood seal from the flange on the air inlet grille panel.
Page 63
3. Remove the screws (2) securing the passenger side air inlet panel (1) to the cowl panel. See Fig. 3.
NOTE:The outer rear edges of the air inlet grille panels are positioned around the
rear of the hood hinges and are tucked under the inner fender flanges.
Fig. 3: Removing Air Inlet Grille Panel
Courtesy of GENERAL MOTORS CORP.
4. Lift the passenger side air inlet grille panel (3) and pull inward in order to remove the panel from the
lower windshield edge. See Fig. 3
5. Remove the nut (4) securing the driver side air inlet panel to the inner fender flange. See Fig. 3
6. Lift the driver side air inlet grille panel (3) over the wiper arm drive spindle and move the panel inward in
order to remove the driver side air inlet panel from the lower glass edge and the locator pin. See Fig. 3
7. Remove the driver side air inlet panel from the vehicle.
. Remove the panel from the vehicle.
.
.
Page 64
Installation
g
1. Position the driver side air inlet grille panel (3) to the vehicle, over the wiper arm drive spindle and
behind the hood hinge. See Fig. 3.
2. Ensure the air inlet grille is secure to the locator pin on the inner fender flange. Ensure the clips on the
rear edge of the air inlet grille panel are secure to the lower edge of the windshield.
3. Ensure the seal is positioned onto the lower windshield edge.
4. Install the nut (4) securing the driver side air inlet panel to the inner fender flange and tighten the nut to
53 INCH lbs. (6 N.m). See Fig. 3.
5. Position the passenger side air inlet grille panel seal around the hood hinge and under the inner fender
flange.
6. Ensure the clips on the rear edge of the air inlet grille panel are secure to the lower edge of the
windshield.
7. Ensure the seal is positioned onto the lower windshield edge.
8. Install the screws (2) in order to secure the air inlet panel to the cowl panel and tighten the screws to 27
INCH lbs. (3 N.m). See Fig. 3.
9. Install the rear hood seal onto the flange of the air inlet grille panel.
10. Apply pressure to the seal in order to secure. Install the windshield wiper arms. Close the hood.
WINDSHIELD WIPER ARMS
Removal
1. Set the wipers in the park position. Open the hood assembly.
2. The driver side wiper (4) aligns with an orange line at the tip of the wiper blade located at the center
lower windshield. See Fig. 4.
3. The passenger side wiper (1) aligns with an orange dot at the tip of the wiper blade located on the right
lower side of the windshield. See Fig. 4
.
4. Remove the covers (2, 5) from the wiper arm nuts (3, 6). See Fig. 4.
5. Remove the nut (3,6) from the wiper arm drive spindle. See Fig. 4
.
NOTE:Apply pressure only at the end of the hook assist rod that you are
removing or attaching. Do not apply pressure to the middle of the rod
because damage or bending will result.
6. Remove the upper hood assist rods from the assist rod ball studs if removing the driver side wiper arm.
7. Tilt the hood rearward to the air inlet
rille panel.
Page 65
Fig. 4: Removing Windshield Wiper Arms
Courtesy of GENERAL MOTORS CORP.
8. Support the hood assembly. Remove the wiper arm from the wiper arm drive spindle. Clean the drive
spindle knurls with a fine wire brush.
Installation
1. Position the passenger side wiper arm so the wiper blade tip (1) aligns with the orange dot on the lower
outer edge of the windshield. See Fig. 4
.
2. Position the driver side wiper arm so that the wiper blade tip (4) aligns with the orange line on the lower
center of the windshield. See Fig. 4
.
3. Install the wiper arm onto the wiper arm drive spindle.
NOTE:Hold the wiper arm into position while tightening the nut.
Page 66
4. Install the nut (3,6) on the wiper arm and tighten to 26 ft. lbs. (35 N.m). See Fig. 4.
5. Secure the upper hook assist rods onto the assist rod ball studs (1) located on the hood assembly. See Fig.
4.
6. Install the wiper arm nut covers. Close the hood assembly.
7. Operate the wipers and wash pattern in order to verify the operation.
8. Verify the driver side wiper does not exceed the wipe area.
Page 67
ENGINE PERFORMANCE
Firing Order & Cylinder Identification - GM, & Saturn - All Models
FIRING ORDER & CYLINDER IDENTIFICATION
NOTE:This information is intended as a quick reference for firing order and cylinder
identification only. The information provided covers many vehicles and may
include some information that does not apply to the vehicle you have currently
selected.
Mode 6 is designed to allow access to the results of onboard diagnostic monitoring tests of specific
components/systems that are not continuously monitored. These systems include the catalytic converter, EVAP
system, oxygen sensor, oxygen sensor heater, EGR system, secondary AIR system, and sometimes misfire.
Mode 6 data is output from the PCM/ECM in hexadecimal form. The $ sign indicates a hexadecimal number.
Depending on the software in the scanner, the output could be displayed in hexadecimal numbers (no
conversion), raw data (conversion to decimal numbers), or measurable values (applying conversion factor to
raw data).
Before reading mode 6 information, ensure that the monitor for the information you are accessing has run to
completion. If the monitor is not complete, the mode 6 data will not be accurate.
2005
Mode $06 Data Definitions For 2005 STS (3.6L)
OBD Monitor
ID
(OBDMID)Test ID (TID)
Oxygen Sensor
01 81 1E Equivalence Ratio
01 82 1E Equivalence Ratio
01 83 2F Dynamic Response
01 84 85 Secondary Sensor
Oxygen Sensor
Units and
Scaling ID
(UASID)
Description
Monitor Bank 1
Sensor 1
(Lambda) - Measured
(Lambda) -
Commanded Set Point
Performance
(Normalized)
Lambda Trim
Correction of Primary
Monitor Bank 1
Sensor 2
Range For
Information
ONLY. Source
information is
ISO-15031-5
document
0.000 to 1.999
lambda
Actual
0.000 to 1.999
lambda
0.00 to 655.35
%
-0.999 to0.999
Sensor
Resolution For
Information
ONLY. Source
information is
ISO-15031-5
document
0.0000305
lambda/bit
0.0000305
lambda/bit
0.01 %/bit
0.0000305/bit
Page 74
02010ARich to Lean Sensor
Threshold Voltage
02020ALean to Rich Sensor
Threshold Voltage
02070AMinimum Sensor
Voltage Achieved
02080AMaximum Sensor
Voltage Achieved
Oxygen Sensor
Monitor Bank 2
Sensor 1
05 81 1E Equivalence Ratio
(Lambda) - Measured
Actual
05821EEquivalence Ratio
(Lambda) -
Commanded Set Point
05832FDynamic Response
Performance
(Normalized)
058485Secondary Sensor
Lambda Trim
Correction of Primary
Sensor
Oxygen Sensor
Monitor Bank 2
Sensor 2
06 01 0A Rich to Lean Sensor
Threshold Voltage
06020ALean to Rich Sensor
Threshold Voltage
06070AMinimum Sensor
Voltage Achieved
06080AMaximum Sensor
Voltage Achieved
Catalyst Monitor
218406Catalyst Test Bank 1
(normalized)
228406Catalyst Test bank 2
(normalized)
EVAP Monitor (Cap
Off)
39 80 81 EVPD Weak Vacuum
Test - Gross Leak
EVAP Monitor EWMA = Exponentially
0.0000 to
7.9900 V
0.0000 to
7.9900 V
0.0000 to
7.9900 V
0.0000 to
7.9900 V
0.000 to 1.999
lambda
0.000 to 1.999
lambda
0.00 to 655.35
%
-0.999 to0.999
0.0000 to
7.9900 V
0.0000 to
7.9900 V
0.0000 to
7.9900 V
0.0000 to
7.9900 V
0.000 to19.988
0.000 to19.988
-32768 to
+32767
0.122 mv/bit
0.122 mv/bit
0.122 mv/bit
0.122 mv/bit
0.0000305
lambda/bit
0.0000305
lambda/bit
0.01 %/bit
0.0000305/bit
0.122 mv/bit
0.122 mv/bit
0.122 mv/bit
0.122 mv/bit
0.000305/bit
0.000305/bit
1 count/bit
Page 75
0.020" Weighted Moving Average
EONV = Engine Off Natural
Vacuum
3C8005EONV NV 0.020 Test
- EWMA
Purge Flow Monitor
3D8884Purge Valve Flow
Test - Stuck
Open/Leak
3D8C81Canister Vent Valve
Test - Stuck
Closed/Restricted
Oxygen Sensor
Heater Monitor
Bank 1 Sensor 1
41 82 2F Heater Power
(normalized)
Oxygen Sensor
Heater Monitor
Bank 1 Sensor 2
42 81 14 Sensor Element
Impedance
Oxygen Sensor
Heater Monitor
Bank 2 Sensor 1
45 82 2F Heater Power
(normalized)
Oxygen Sensor
Heater Monitor
Bank 2 Sensor 2
46 81 14 Sensor Element
Impedance
Fuel System Monitor
Bank 1
81 80 AF Additive Fuel (Offset)
Correction
818205Multiplicative Fuel
(Slope) Correction
Fuel System Monitor
Bank 2
82 80 AF Additive Fuel Offset
Correction
828205Multiplicative Fuel
Slope Correction
Misfire Cylinder 1
0.000 to 1.9990.0000305/bit
-32.768 to
+32.767
-32768 to
+32767
0.00 to 655.35
%
0 to 65535
Ohms
0.00 to 655.35
%
0 to 65535
Ohms
-327.68 to
+327.67 %
0.000 to1.999
-327.68 to
+327.67 %
0.000 to1.999
0.001 count/bit
1 count/bit
0.01 %/bit
1 Ohm/bit
0.01 %/bit
1 Ohm/bit
0.01 %/bit
0.0000305/bit
0.01 %/bit
0.0000305/bit
Page 76
data
A2 0B 24 EWMA
(Exponentially
Weighted Moving
Average) misfire
counts for the last 10
driving cycles
A2 0C 24 Misfire counts for the
last/current driving
cycles
Misfire Cylinder 2
data
A3 0B 24 EWMA
(Exponentially
Weighted Moving
Average) misfire
counts for the last 10
driving cycles
A3 0C 24 Misfire counts for the
last/current driving
cycles
Misfire Cylinder 3
data
A4 0B 24 EWMA
(Exponentially
Weighted Moving
Average) misfire
counts for the last 10
driving cycles
A4 0C 24 Misfire counts for the
last/current driving
cycles
Misfire Cylinder 4
data
A5 0B 24 EWMA
(Exponentially
Weighted Moving
Average) misfire
counts for the last 10
driving cycles
A5 0C 24 Misfire counts for the
last/current driving
cycles
Misfire Cylinder 5
data
A6 0B 24 EWMA 0 to 65535 1 count/bit
0 to 65535
counts
0 to 65535
counts
0 to 65535
counts
0 to 65535
counts
0 to 65535
counts
0 to 65535
counts
0 to 65535
counts
0 to 65535
counts
1 count/bit
1 count/bit
1 count/bit
1 count/bit
1 count/bit
1 count/bit
1 count/bit
1 count/bit
Page 77
counts for the last 10
2006
Mode $06 Data Definitions For 2006 STS (3.6L)
OBD Monitor
ID
(OBDMID)Test ID (TID)
Oxygen Sensor
01 83 05 Dynamic Response
01 84 85 Secondary Sensor
Oxygen Sensor
02 01 0A Rich to Lean Sensor
02 02 0A Lean to Rich Sensor
02 07 0A Minimum Sensor
02 08 0A Maximum Sensor
02 81 0A Equivalence Ratio
02 82 0A Equivalence Ratio
02 83 0A Dynamic Response
Units and
Scaling ID
(UASID)
Correction of Primary
(Lambda) - Measured
Commanded Set Point
(Exponentially
Weighted Moving
Average) misfire
driving cycles
Description
Monitor Bank 1
Sensor 1
Performance
(Normalized)
Lambda Trim
Sensor
Monitor Bank 1
Sensor 2
Threshold Voltage
Threshold Voltage
Voltage Achieved
Voltage Achieved
Actual
(Lambda) -
Performance
(Normalized)
counts
Range For
Information
ONLY. Source
information is
ISO-15031-5
document
0.0 to 1.9990.0000305/bit
-0.999 to 0.9990.0000305/bit
0.0 to 7.99 V0.122 mv/bit
0.0 to 7.99 V0.122 mv/bit
0.0 to 7.99 V0.122 mv/bit
0.0 to 7.99 V0.122 mv/bit
0.0 to 7.99 V0.122 mv/bit
0.0 to 7.99 V0.122 mv/bit
0.0 to 7.99 V0.122 mv/bit
Resolution For
Information
ONLY. Source
information is
ISO-15031-5
document
Page 78
Oxygen Sensor
Monitor Bank 2
Sensor 1
05 83 05 Dynamic Response
Performance
(Normalized)
058485Secondary Sensor
Lambda Trim
Correction of Primary
Sensor
Oxygen Sensor
Monitor Bank 2
Sensor 2
06 01 0A Rich to Lean Sensor
Threshold Voltage
06020ALean to Rich Sensor
Threshold Voltage
06070AMinimum Sensor
Voltage Achieved
06080AMaximum Sensor
Voltage Achieved
02810AEquivalence Ratio
(Lambda) - Measured
Actual
02820AEquivalence Ratio
(Lambda) -
Commanded Set Point
02830ADynamic Response
Performance
(Normalized)
Catalyst Monitor
218406Catalyst Test Bank 1
(normalized)
228406Catalyst Test bank 2
(normalized)
EVAP Monitor (Cap
Off)
39 80 81 EVPD Weak Vacuum
Test - Gross Leak
EVAP Monitor
0.020"
3C 80 05 EONV NV 0.020 Test
- EWMA
-0.999 to 0.9990.0000305/bit
0.0 to 19.9880.000305/bit
0.0 to 19.9880.000305/bit
EWMA = Exponentially
Weighted Moving Average
EONV = Engine Off Natural
Vacuum
0.0 to 1.9990.0000305/bit
0.0 to 7.99 V0.122 mv/bit
0.0 to 7.99 V0.122 mv/bit
0.0 to 7.99 V0.122 mv/bit
0.0 to 7.99 V0.122 mv/bit
0.0 to 7.99 V0.122 mv/bit
0.0 to 7.99 V0.122 mv/bit
0.0 to 7.99 V0.122 mv/bit
-32768 to
+32767
0.0 to 1.9990.0000305/bit
1.0/bit
Page 79
Purge Flow Monitor
3D8881Purge Valve Flow
Test - Stuck
Open/Leak
3D8C81Canister Vent Valve
Test - Stuck
Closed/Restricted
Oxygen Sensor
Heater Monitor
Bank 1 Sensor 1
41 85 16 Heater Temperature-40 to 6513.5 °C0.1 °C per bit -
Oxygen Sensor
Heater Monitor
Bank 1 Sensor 2
42 81 14 Sensor Element
Impedance
Oxygen Sensor
Heater Monitor
Bank 2 Sensor 1
45 85 16 Heater Temperature-40 to 6513.5 °C0.1 °C per bit -
Oxygen Sensor
Heater Monitor
Bank 2 Sensor 2
46 81 14 Sensor Element
Impedance
Fuel System Monitor
Bank 1
81 80 AF Additive Fuel (Offset)
Correction
818205Multiplicative Fuel
(Slope) Correction
Fuel System Monitor
Bank 2
82 80 AF Additive Fuel Offset
Correction
828205Multiplicative Fuel
Slope Correction
Misfire Cylinder 1
data
A2 0B 24 EWMA
(Exponentially
Weighted Moving
Average) misfire
-32768 to
+32767
-32768 to
+32767
0 to 65535
Ohms
0 to 65535
Ohms
-327.68 to
+327.67 %
0.0 to 1.9990.0000305/bit
-327.68 to
+327.67 %
0.0 to 1.9990.0000305/bit
counts1 count/bit
1.0/bit
1.0/bit
40°C
1 Ohm/bit
40°C
1 Ohm/bit
0.01 %/bit
0.01 %/bit
Page 80
counts for the last 10
driving cycles 0 to
65535
A2 0C 24 Misfire counts for the
last/current driving
cycles
Misfire Cylinder 2
data
A3 0B 24 EWMA
(Exponentially
Weighted Moving
Average) misfire
counts for the last 10
driving cycles
A3 0C 24 Misfire counts for the
last/current driving
cycles
Misfire Cylinder 3
data
A4 0B 24 EWMA
(Exponentially
Weighted Moving
Average) misfire
counts for the last 10
driving cycles
A4 0C 24 Misfire counts for the
last/current driving
cycles
Misfire Cylinder 4
data
A5 0B 24 EWMA
(Exponentially
Weighted Moving
Average) misfire
counts for the last 10
driving cycles
A5 0C 24 Misfire counts for the
last/current driving
cycles
Misfire Cylinder 5
data
A6 0B 24 EWMA
(Exponentially
Weighted Moving
Average) misfire
counts for the last 10
0 to 65535
counts
0 to 65535
counts
0 to 65535
counts
0 to 65535
counts
0 to 65535
counts
0 to 65535
counts
0 to 65535
counts
0 to 65535
counts
1 count/bit
1 count/bit
1 count/bit
1 count/bit
1 count/bit
1 count/bit
1 count/bit
1 count/bit
Page 81
A6 0C 24 Misfire counts for the
Misfire Cylinder 6
A7 0B 24 EWMA
counts for the last 10
A7 0C 24 Misfire counts for the
2007
Mode $06 Data Definitions For 2007 STS (3.6L)
Description
OBD
Monitor ID
(OBDMID)
Oxygen Sensor
01 83 05 Dynamic Response
Oxygen Sensor
02 01 0A Rich to Lean Sensor
02 02 0A Lean to Rich Sensor
02 07 0A Minimum Sensor
02 08 0A Maximum Sensor
02 81 0A Sensor Voltage 0.0 to 7.99 V0.122 mv/bitP2270
Test ID
(TID)
Units and
Scaling ID
(UASID)
Monitor Bank 1
Sensor 1
Performance
(Normalized)
Monitor Bank 1
Sensor 2
Threshold Voltage
Threshold Voltage
Voltage Achieved
Voltage Achieved
driving cycles
last/current driving
cycles
data
(Exponentially
Weighted Moving
Average) misfire
driving cycles
last/current driving
cycles
Range
For
Information
ONLY.
Source
information is
ISO-15031-5
document
0.0 to 1.9990.0000305/bitP0133
0.0 to 7.99 V0.122 mv/bit-
0.0 to 7.99 V0.122 mv/bit-
0.0 to 7.99 V0.122 mv/bitP0137
0.0 to 7.99 V0.122 mv/bitP0138
0 to 65535
counts
0 to 65535
counts
0 to 65535
counts
Resolution
For
Information
ONLY.
Source
information is
ISO-15031-5
document
1 count/bit
1 count/bit
1 count/bit
Associated
DTC
Page 82
Achieved for below
Commaded Target
Voltage Functional
Check
02820ASensor Voltage
Achieved for above
Commanded Target
Voltage Functional
Check
02830ADynamic Response
Performance -
Decel Fuel Cut-Off
Oxygen Sensor
Monitor Bank 2
Sensor 1
05 83 05 Dynamic Response
Performance
(Normalized)
Oxygen Sensor
Monitor Bank 2
Sensor 2
06 01 0A Rich to Lean Sensor
Threshold Voltage
06020ALean to Rich Sensor
Threshold Voltage
06070AMinimum Sensor
Voltage Achieved
06080AMaximum Sensor
Voltage Achieved
02810ASensor Voltage
Achieved for below
Commaded Target
Voltage Functional
Check
02820ASensor Voltage
Achieved for above
Commanded Target
Voltage Functional
Check
02830ADynamic Response
Performance -
Decel Fuel Cut-Off
Catalyst Monitor
218406Catalyst Test Bank
1 (normalized)
0.0 to 7.99 V0.122 mv/bitP2271
0.0 to 7.99 V0.122 mv/bitP2271
0.0 to 1.9990.0000305/bitP0153
0.0 to 7.99 V0.122 mv/bit-
0.0 to 7.99 V0.122 mv/bit-
0.0 to 7.99 V0.122 mv/bitP0157
0.0 to 7.99 V0.122 mv/bitP0158
0.0 to 7.99 V0.122 mv/bitP2272
0.0 to 7.99 V0.122 mv/bitP2273
0.0 to 7.99 V0.122 mv/bitP2273
0.0 to 19.9880.000305/bitP0420
Page 83
228406Catalyst Test bank 2
(normalized)
EVAP Monitor
(Cap Off)
39 80 81 EVAP Tank Gross
Leak
EVAP Monitor
0.020"
3C 80 05 EONV NV 0.020
Test - EWMA
Purge Flow
Monitor
3D 88 81 Purge Valve Flow
Test - Stuck
Open/Leak
3D8C81Canister Vent Valve
Test - Stuck
Closed/Restricted
Oxygen Sensor
Heater Monitor
Bank 1 Sensor 1
41 85 16 Heater Temperature -40 to 6513.5 °C0.1 °C per bit -
Oxygen Sensor
Heater Monitor
Bank 1 Sensor 2
42 81 14 Sensor Element
Impedance
Oxygen Sensor
Heater Monitor
Bank 2 Sensor 1
45 85 16 Heater Temperature -40 to 6513.5 °C0.1 °C per bit -
Oxygen Sensor
Heater Monitor
Bank 2 Sensor 2
46 81 14 Sensor Element
Impedance
Fuel System
Monitor Bank 1
81 80 AF Additive Fuel
(Offset) Correction
818205Multiplicative Fuel 0.0 to 1.9990.0000305/bitP2177,
0.0 to 19.9880.000305/bitP0430
-32768 to
+32767
EWMA = Exponentially
Weighted Moving Average
EONV = Engine Off Natural
Vacuum
0.0 to 1.9990.0000305/bitP0442
-32768 to
+32767
-32768 to
+32767
0 to 65535
Ohms
0 to 65535
Ohms
-327.68 to
+327.67 %
1.0/bitP0455
1.0/bitP0496
1.0/bitP0446
P0135
40°C
1 Ohm/bitP0141
P0155
40°C
1 Ohm/bitP0161
0.01 %/bitP2187,
P2188
Page 84
(Slope) CorrectionP2178
Fuel System
Monitor Bank 2
82 80 AF Additive Fuel
(Offset) Correction
828205Multiplicative Fuel
(Slope) Correction
Misfire Cylinder 1
data
A2 0B 24 EWMA
(Exponentially
Weighted Moving
Average) misfire
counts for the last
10 driving cycles
A2 0C 24 Misfire counts for
the last/current
driving cycles
Misfire Cylinder 2
data
A3 0B 24 EWMA
(Exponentially
Weighted Moving
Average) misfire
counts for the last
10 driving cycles
A3 0C 24 Misfire counts for
the last/current
driving cycles
Misfire Cylinder 3
data
A4 0B 24 EWMA
(Exponentially
Weighted Moving
Average) misfire
counts for the last
10 driving cycles
A4 0C 24 Misfire counts for
the last/current
driving cycles
Misfire Cylinder 5
data
A5 0B 24 EWMA
(Exponentially
Weighted Moving
Average) misfire
-327.68 to
+327.67 %
0.0 to 1.9990.0000305/bitP2179,
0 to 65535
counts
0 to 65535
counts
0 to 65535
counts
0 to 65535
counts
0 to 65535
counts
0 to 65535
counts
0 to 65535
counts
0.01 %/bitP2189,
P2190
P2180
1 count/bitP0301
1 count/bitP0301
1 count/bitP0302
1 count/bitP0302
1 count/bitP0303
1 count/bitP0303
1 count/bitP0304
Page 85
counts for the last
g
10 driving cycles
A5 0C 24 Misfire counts for
the last/current
driving cycles
Misfire Cylinder 5
data
A6 0B 24 EWMA
(Exponentially
Weighted Moving
Average) misfire
counts for the last
10 driving cycles
A6 0C 24 Misfire counts for
the last/current
driving cycles
Misfire Cylinder 6
data
A7 0B 24 EWMA
(Exponentially
Weighted Moving
Average) misfire
counts for the last
10 driving cycles
A7 0C 24 Misfire counts for
the last/current
driving cycles
0 to 65535
counts
0 to 65535
counts
0 to 65535
counts
0 to 65535
counts
0 to 65535
counts
1 count/bitP0304
1 count/bitP0305
1 count/bitP0305
1 count/bitP0306
1 count/bitP0306
2008
Mode $06 Data Definitions For 2008 STS (3.6L)
Description
OBD
Monitor ID
(OBDMID)
Oxygen Sensor
01 83 05 Dynamic Response
Oxygen Sensor
Test ID
(TID)
Units and
Scalin
(UASID)
ID
Monitor Bank 1
Sensor 1
Performance
(Normalized)
Monitor Bank 1
Range For
Information
ONLY.
Source
information is
ISO-15031-5
document
0.0 to 1.9990.0000305/bitP0133
Resolution For
Information
ONLY. Source
information is
ISO-15031-5
document
Associated
DTC
Page 86
Sensor 2
02 01 0A Rich to Lean Sensor
Threshold Voltage
02020ALean to Rich Sensor
Threshold Voltage
020510Rich to Lean Sensor
Transient (Gradient)
Time
02070AMinimum Sensor
Voltage Achieved
02080AMaximum Sensor
Voltage Achieved
02810AMaximum Sensor
Voltage for
Functional Check
02820AMinimum Sensor
Voltage for
Functional Check
02830ADynamic Response
Performance -
Decel Fuel Cut-Off
028616Rich to Lean Sensor
Delay (Response)
Time
Catalyst MonitorEWMA = Exponentially
218405Catalyst Test Bank
1 (normalized) -
EWMA
EVAP Monitor
(Cap Off)
39 80 81 EVAP Tank Gross
Leak
EVAP Monitor
0.020"
3C 80 05 EONV NV 0.020
Test - EWMA
Purge Flow
Monitor
3D 88 81 Purge Valve Flow
Test - Stuck
Open/Leak
3D8C81Canister Vent Valve -32768 to 1.0/bitP0446
0.0 to 7.99 V0.122 mv/bit-
0.0 to 7.99 V0.122 mv/bit-
0 to 65535 ms1.0 ms/bitP013A
0.0 to 7.99 V0.122 mv/bitP0137
0.0 to 7.99 V0.122 mv/bitP0138
0.0 to 7.99 V0.122 mv/bitP2270
0.0 to 7.99 V0.122 mv/bitP2271
0.0 to 7.99 V0.122 mv/bitP2271
0 to 655350 ms10.0 ms/bitP013E
Weighted Moving Average
0.0 to 1.9990.0000305/bitP0420
-32768 to
+32767
EWMA = Exponentially
Weighted Moving Average
EONV = Engine Off Natural
Vacuum
0.0 to 1.9990.0000305/bitP0442
-32768 to
+32767
1.0/bitP0455
1.0/bitP0496
Page 87
Test - Stuck
Closed/Restricted
Oxygen Sensor
Heater Monitor
Bank 1 Sensor 1
41 85 16 Heater Temperature -40 to 6513.5 °C0.1 °C per bit -
IMPORTANT: Squeaks and rattles are caused by improperly controlled relative motion
between vehicle components. There are 4 ways to prevent squeaks and
rattles.
To aid in diagnosing, use J 39570 or J 41416 .
Attach the component that squeaks or rattles securely.
Separate the components that squeak or rattle to prevent contact.
Insulate the components that squeak or rattle.
Insulate low uniform friction surfaces to eliminate stickslip motion.
SPECIAL TOOLS AND EQUIPMENT
SPECIAL TOOLS
Special Tools
IllustrationTool Number/ Description
J 39570
Chassis Ear
J 41416
Ultrasonic Leak Detector
Page 90
Page 91
GENERAL INFORMATION
Waterleaks - STS
DIAGNOSTIC INFORMATION AND PROCEDURES
WATERLEAK TEST PREPARATION
GM vehicles are designed to operate under normal environmental conditions.
The design criteria for sealing materials and components takes into consideration the sealing forces
required to withstand the natural elements. These specifications cannot take into consideration any
artificial conditions, i.e., high pressure car washes.
The water leak test procedure has been correlated to the natural elements and will determine the ability of
a vehicle to perform under normal operating conditions.
The first step in diagnosing a leak is determining the conditions under which a leak occurs. If the general
leak area can be found, the exact entry point can be isolated using a water hose or an air hose. Some trim
panels or components may need to be removed in order to repair the leak.
If leaks are found around a door, door window, rear compartment lid or liftgate area this does not
necessarily indicate a bad weatherstrip. An adjustment to these areas may resolve the condition.
Page 92
Fig. 1: View Of Watertest Stand Assembly
Courtesy of GENERAL MOTORS CORP.
Page 93
CalloutComponent Name
1Pipe (0.5 x 36 in)
2Reducing Tee, Right Stand Only (0.5 x 0.5 x 0.25 in)
3Coupling, Left Stand Only, (0.5 in)
4Tee, Left Stand Only (0.5 in)
5Cross, Right Stand Only (0.5 in)
6Pipe to Hose Nipple, Right Stand Only (0.5 in)
7Female Hose Coupling (5/8 in)
8Input Hose, Right Stand Only (2.0 ft) (5/8 in diameter)
9Close Nipple (0.5 in)
10Cross (0.5 in) with Weld-On Cap (0.5 in)
11Nipple (0.5 x 12 in)
12Cap (0.5 in)
13Female Hose Coupling (5/8 in)
14Cross Hose (12 ft) (5/8 in diameter)
15Hose Quick Connect
16Pipe to Hose Nipple (0.5 in)
17Pipe (0.5 x 60 in)
18Water Pressure Gage, Right Stand Only
19Full Jet Spray Nozzle, No. 1/2GG-25 or Equivalent
20Coupling (0.5 in)
1. Assemble the water test stand as shown.
Page 94
Fig. 2: Illustrating How Water Spray From Stands Should Overlap Vehicle
Courtesy of GENERAL MOTORS CORP.
2. Position the stands as shown.
The water spray from the stands should overlap the vehicle as shown.
3. Have an assistant inside of the vehicle during the test in order to locate any leaks.
4. The water pressure at the nozzle should maintain a 155 kPa (22 psi), for at least 4 minutes.
Page 95
Fig. 3: Identifying Proper Water Spray Angles
g
Courtesy of GENERAL MOTORS CORP.
5. In order to check the windshield, aim the water spray 30 degrees down and 45 degrees toward the rear.
Aim the water towards the corner of the windshield.
6. In order to check the side windows for leaks, position the water stand towards the center of the rear
quarter, aiming the water spray 30 degrees down and 45 degrees toward the rear.
7. In order to check the back window, aim the water spray 30 degrees down and 30 degrees toward the front.
DUST LEAKS
Dust may leak into the vehicle where water will not. This happens particularly in the lower portion of the
interior.
Forward motion of the vehicle can create a sli
ht vacuum which pulls air and dust into the vehicle.
Page 96
In order to determine the location of dust leaks, perform the following steps:
1. Remove the mats from the floor.
2. Remove the mats from the kick panel.
3. Remove the insulation from the floor.
4. Remove the insulation from the kick panel.
5. Drive the vehicle on a dusty road.
6. Examine the interior.
Dust in the shape of a small cone or slit will usually be found at the point of leakage.
7. Mark the points of leakage.
IMPORTANT: Ensure that the interior is darkened when performing this step.
8. Shine bright lamps on the underside of the floor and the cowl.
9. Have an assistant mark any points inside of the vehicle for any points where the light shines through.
Inspect the weld joints.
Inspect the body mounts.
10. Seal any leaks with an air-drying, body-sealing compound.
WATER HOSE TEST
Page 97
Fig. 4: Performing Water Hose Test
Courtesy of GENERAL MOTORS CORP.
IMPORTANT: Use a water hose without the nozzle attached.
1. Have an assistant inside of the vehicle in order to locate the leak.
2. Begin testing at the base of the window or the windshield.
3. Slowly move the hose upward and across the top of the vehicle.
AIR HOSE TEST
Page 98
Fig. 5: Performing Air Hose Test
Courtesy of GENERAL MOTORS CORP.
NOTE:The air hose test should only be used on fully cured urethane adhesive.
Otherwise, damage to the urethane adhesive bead could result in
additional leaks.
1. Using a liquid detergent, diluted with water in a spray bottle, spray the window at the edges. Begin at the
bottom and gradually move up and across the top.
IMPORTANT: The compressed air should not exceed 205 kPa (30 psi).
2. Have an assistant inside of the vehicle with an air hose.
3. Have the assistant aim the compressed air at the suspected areas.
Bubbles will form in the soap solution at the location of the leak.
Page 99
REPAIR INSTRUCTIONS
BODY WATERLEAK REPAIR
CAUTION: If any water enters the vehicle's interior up to the level of the carpet or
higher and soaks the carpet, the sensing and diagnostic module (SDM)
and the SDM harness connector may need to be replaced. The SDM could
be activated when powered, which could cause deployment of the air bag
(s) and result in personal injury. Before attempting these procedures, the
SIR system must be disabled. Refer to Disabling the SIR System.
With the ignition OFF, inspect the SDM mounting area, including the
carpet. If any significant soaking or evidence of significant soaking is
detected, you must perform the following tasks:
1. Remove all water.
2. Repair the water damage.
3. Replace the SDM harness connector.
4. Replace the SDM.
Failure to follow these tasks could result in possible air bag deployment,
personal injury, or otherwise unneeded SIR system repairs.
Page 100
Fig. 6: Cutting Out A Portion Of The Adhesive Caulking (1 Of 2)
Courtesy of GENERAL MOTORS CORP.
Depending on the location of the waterleak, you may have to remove certain interior components in order to
repair the leak.
1. If the floor carpet is wet refer to Floor Carpet Drying in Interior Trim.
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