Cadillac CT4 2020 Owner's Manual

CT4
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) - 2020 - CRC - 11/21/19
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Keys, Doors, and Windows . . . . . . . . . . 7
Seats and Restraints . . . . . . . . . . . . . . . 33
Storage . . . . . . . . . . . . . . . . . . . ... . . . . . . . . 82
Instruments and Controls . . . . . . . . . . 85
Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Infotainment System . . . . . . . . . . . . . 133
Climate Controls . . . . . . . . . . . . . . . . . . 134
Driving and Operating . . . . . . . . . . . . 141
Vehicle Care . . . . . . . . . . . .. . . . . . . . . . . 233
Service and Maintenance . . . . . . . . . 302
Technical Data . . . . . . . . . . . . . . . . . .. . 317
Customer Information . . . . . . . . . . . . 321
Reporting Safety Defects . . . . . . . . . 331
OnStar ..... . . . . . . . . . . . . . . . . . . . . . . . . . 336
Connected Services . . . . . . . . . . . . . . . 342
Index . . . . . . . . . . . . . . . . . . . . . . . . 345
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) - 2020 - CRC - 11/21/19
2 INTRODUCTION

Introduction

The names, logos, emblems, slogans, vehicle model names, and vehicle body designs appearing in this manual including, but not limited to, GM, the GM logo, the CADILLAC Emblem, and CADILLAC CT4 are trademarks and/or service marks of General Motors LLC, its subsidiaries, affiliates, or licensors.
For vehicles first sold in Canada, substitute the name General Motors of Canada Companyfor Cadillac Motor Car Division wherever it appears in this manual.
This manual describes features that may or may not be on the vehicle because of optional equipment that was not purchased on the vehicle,
Litho in U.S.A. Part No. 84186799 A First Printing
model variants, country specifications, features/applications that may not be available in your region, or changes subsequent to the printing of this owners manual.
Refer to the purchase documentation relating to your specific vehicle to confirm the features.
Keep this manual in the vehicle for quick reference.
Canadian Vehicle Owners
A French language manual can be obtained from your dealer, at www.helminc.com, or from:
Propriétaires Canadiens
On peut obtenir un exemplaire de ce guide en français auprès du concessionnaire ou à l'adresse suivante:
Helm, Incorporated Attention: Customer Service 47911 Halyard Drive Plymouth, MI 48170 USA
Using this Manual
To quickly locate information about the vehicle, use the Index in the back of the manual. It is an alphabetical list of what is in the manual and the page number where it can be found.
Danger, Warning, and Caution
Warning messages found on vehicle labels and in this manual describe hazards and what to do to avoid or reduce them.
Danger
{
Danger indicates a hazard with a high level of risk which will result in serious injury or death.
Warning
{
Warning indicates a hazard that could result in injury or death.
©
2019 General Motors LLC. All Rights Reserved.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) - 2020 - CRC - 11/21/19
INTRODUCTION 3
Caution
Caution indicates a hazard that could result in property or vehicle damage.
M : Shown when the owners manual
has additional instructions or information.
* : Shown when the service manual
has additional instructions or information.
0 : Shown when there is more
information on another page see page.
Vehicle Symbol Chart
Here are some additional symbols that
A circle with a slash through it is a safety symbol which means Do not, Do not do this,or Do not let this happen.
may be found on the vehicle and what they mean. See the features in this manual for information.
u : Air Conditioning System
G : Air Conditioning Refrigerant Oil
Symbols
The vehicle has components and labels that use symbols instead of text. Symbols are shown along with the text describing the operation or information relating to a specific component, control, message, gauge, or indicator.
9 : Airbag Readiness Light
! : Antilock Brake System (ABS) $ : Brake System Warning Light
9 : Dispose of Used Components
Properly
P : Do Not Apply High Pressure
Water
B : Engine Coolant Temperature _ : Flame/Fire Prohibited
H : Flammable [ : Forward Collision Alert R : Fuse Block Cover Lock Location + : Fuses
j : ISOFIX/LATCH System Child
Restraints
Q : Keep Fuse Block Covers Properly
Installed
| : Lane Change Alert @ : Lane Departure Warning A : Lane Keep Assist
* : Malfunction Indicator Lamp : : Oil Pressure
X : Park Assist
~ : Pedestrian Ahead Indicator
O : Power
7 : Rear Cross Traffic Alert
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) - 2020 - CRC - 11/21/19
4 INTRODUCTION
I : Registered Technician
S : Remote Vehicle Start
> : Seat Belt Reminders
I : Side Blind Zone Alert
h : Stop/Start
7 : Tire Pressure Monitor
d : Traction Control/StabiliTrak/
Electronic Stability Control (ESC)
a : Under Pressure V : Vehicle Ahead Indicator
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) - 2020 - CRC - 11/21/19
Instrument Panel Overview
INTRODUCTION 5
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) - 2020 - CRC - 11/21/19
6 INTRODUCTION
1. Air Vents 0 139.
2. Exterior Lamp Controls 0 125.
Turn Signal Lever. See Turn and Lane-Change Signals 0 129.
3. Tap Shift Controls (If Equipped).
See Manual Mode (Electronic
Shifter) 0 177 or Manual Mode (Mechanical Shifter)
0 176.
4. Cruise Control 0 192.
Adaptive Cruise Control 0 194 (If Equipped).
Forward Collision Alert (FCA) System 0 210 (If Equipped).
Heated Steering Wheel 0 86 (If
Equipped).
5. Instrument Cluster 0 93.
Driver Information Center (DIC) Display. See Driver Information Center (DIC) 0 109.
6. Steering Wheel Controls 0 86 (If
Equipped). See infotainment manual.
7. Windshield Wiper/Washer 0 86.
8. Infotainment 0 133.
9. Light Sensor. See Automatic Headlamp System 0 128.
10. Hazard Warning Flashers 0 128.
11. Dual Automatic Climate Control System 0 134.
12. Heated and Ventilated Front Seats 0 40 (If Equipped).
13. Lane Keep Assist (LKA) 0 219 (If Equipped).
14. Traction Control/Electronic Stability Control 0 182.
Stop/Start Disable Switch. See
Stop/Start System 0 161.
Automatic Vehicle Hold (AVH)
0 181.
MODE Button or (V-Series Only). See Driver Mode Control 0 184.
15. Wireless Charging Pad (If Equipped) (Out of View). See Wireless Charging 0 89.
16. Park Assist Button. See
Assistance Systems for Parking or Backing 0 204.
« /ª Button
17. Shift Lever. See Automatic Transmission (Mechanical Shifter) 0 169 or Automatic Transmission (Electronic shifter) 0 171.
18. ENGINE START/STOP Button. See Ignition Positions 0 158.
19. Horn 0 86.
20. Steering Wheel Adjustment 0 86.
21. Head-Up Display (HUD) 0 111 (If Equipped).
22. Data Link Connector (DLC) (Out of View). See Malfunction
Indicator Lamp (Check Engine Light) 0 100.
23. Instrument Panel Illumination Control 0 129.
24. Hood Release (Out of View). See Hood 0 236.
25. Electric Parking Brake 0 179 (If Equipped).
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) - 2020 - CRC - 11/21/19

Keys, Doors, and Windows

Keys and Locks

Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Remote Keyless Entry (RKE)
System . . . . . . . . . . . . .. . . . . . . . . . . . . . . . 8
Remote Keyless Entry (RKE)
System Operation . . . . . . . . . . . . . . . . . 8
Remote Vehicle Start . . . . . . .. . . . . . . 14
Door Locks . . . . . . . . . . . . . . ... . . . . . . . . 16
Power Door Locks . . . . . . . . . . . . . . . . . 18
Delayed Locking . . . . . . . . . . . . . . . . . . . 18
Automatic Door Locks . . . . . . . . . . . . 19
Lockout Protection . . . . . . . . . . . . . . . . 19
Safety Locks . . . . . . . . . . . . . . . . . . . . . . . . 19
Folding Mirrors . . . . . . . . . . . . . . . . . . . . 26
Heated Mirrors . . . . . . . . . . . . . . . . . . . . . 27
Automatic Dimming Mirror .... . . . 27
Reverse Tilt Mirrors . . . . . . . . . . . . . . . 27
Interior Mirrors
Interior Rearview Mirrors . . . . . . . . . 28
Manual Rearview Mirror . . . . . . . . . . 28
Automatic Dimming Rearview
Mirror . . . . . . . . ....... . . . . . . . . . . . . . . 28
Windows
Windows . . . . . . . . . . . .. . . . . . . . . . . . . . . 28
Power Windows . . . . . . . . . . . . . . . . . . . . 29
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Doors
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Vehicle Security
Vehicle Security . . . . . . . .... . . . . . . . . . 22
Vehicle Alarm System . . . . . . . . . . . . . 22
Immobilizer ...... . . . . . . . . . . . . . . . . . . 24
Immobilizer Operation . . . . . . . . . . . . 24
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . . . . . . . 25
Power Mirrors . . . . . . . . . . . . . . . . . . . . . . 26
KEYS, DOORS, AND WINDOWS 7
Keys and Locks
Keys
Warning
{
Leaving children in a vehicle with a remote key is dangerous and children or others could be seriously injured or killed. They could operate the power windows or other controls or make the vehicle move. The windows will function with the remote key in the vehicle, and children or others could be caught in the path of a closing window. Do not leave children in a vehicle with a remote key.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) - 2020 - CRC - 11/21/19
8 KEYS, DOORS, AND WINDOWS
To remove the mechanical key, press the button on the side of the remote key near the bottom, and pull the mechanical key out. Never pull the mechanical key out without pressing the button.
If it becomes difficult to turn the key, inspect the key blade for debris. Periodically clean with a brush or pick.
See your dealer if a new mechanical key is needed.
Contact Roadside Service if locked out of the vehicle. See Roadside Service 0 325.
With an active OnStar or connected service plan, an OnStar Advisor may remotely unlock the vehicle. See OnStar Overview 0 336.
Remote Keyless Entry (RKE) System
See Radio Frequency Statement 0 331.
The mechanical key, inside the remote key, is used for the driver door and glove box.
If there is a decrease in the remote key operating range:
.
Check the distance. The remote key may be too far from the vehicle.
.
Check the location. Other vehicles or objects may be blocking the signal.
.
Check the remote key battery. See Battery Replacementlater in this section.
.
If the remote key is still not working correctly, see your dealer or a qualified technician for service.
Remote Keyless Entry (RKE) System Operation
The Keyless Access system allows for vehicle entry when the remote key is within 1 m (3 ft). See Keyless Access Operationlater in this section.
The remote key functions may work up to 60 m (197 ft) away from the vehicle.
Other conditions can impact the performance of the remote key. See
Remote Keyless Entry (RKE) System 0 8.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) - 2020 - CRC - 11/21/19
doors. The remote key can be programmed to unlock all doors on the first button press. See Vehicle Personalization 0 116. When remotely unlocking the vehicle at night, the headlamps and back-up lamps may come on for about 30 seconds to light your approach to the vehicle. The turn signal indicators may flash to indicate unlocking.
Pressing system. See Vehicle Alarm System 0 22.
Q : Press to lock all doors and the fuel
door, if equipped. The turn signal indicators may flash and/or the horn may sound on the second press to indicate locking. See Vehicle Personalization 0 116.
Pressing system. See Vehicle Alarm System 0 22.
If equipped with remote folding mirrors, pressing
may fold the mirrors. See Folding Mirrors 0 26.
Q may also arm the alarm
Q on the remote key
K : Press to unlock the driver door
and the fuel door, if equipped. Press again within five seconds to unlock all
Press and hold three seconds to remotely open the windows, if enabled. See Vehicle Personalization 0 116.
If equipped with remote folding mirror, pressing
may unfold the mirrors. See Folding Mirrors 0 26.
S : Press S twice to start the engine
from outside the vehicle using the remote key. See Remote Vehicle Start 0 14.
7 : Press and release one time to
initiate vehicle locator. The exterior lamps flash and the horn chirps three
K will disarm the alarm
K for about
K on the remote key
KEYS, DOORS, AND WINDOWS 9
times. Press and hold three seconds to sound the panic alarm. The horn sounds and the turn signal lamps flash for 30 seconds, or until vehicle is started.
7 is pressed again or the
7 for more than
X : Press twice to release the trunk.
Keyless Access Operation
The Keyless Access system lets you lock and unlock the doors and access the trunk without removing the remote key from your pocket, purse, briefcase, etc. The remote key must be within 1 m (3 ft) of the trunk or door being opened. The button is on the outside door handle.
The Keyless Access system can be programmed to be turned off or to unlock all doors on the first door handle press from the driver door. Keyless unlocking can also be turned off. See Vehicle Personalization 0 116.
If equipped with memory seats, remote keys 1 and 2 are linked to seating positions of memory 1 or 2. See Memory Seats 0 37.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) - 2020 - CRC - 11/21/19
10 KEYS, DOORS, AND WINDOWS
Keyless Unlocking/Locking from the Driver Door
When the doors are locked and the remote key is within 1 m (3 ft) of the door handle, pressing the door handle button on the driver door handle will unlock the driver door. If the door handle button is pressed again within five seconds, all passenger doors will unlock.
If equipped with remote folding mirror, pressing the driver door handle button may fold and unfold the mirrors. See Folding Mirrors 0 26.
Driver Door Shown, Passenger Similar
Pressing the door handle button will cause all doors to lock if any of the following occur:
.
It has been more than five seconds since the first door handle button press.
.
Two door handle button presses were used to unlock all doors.
.
Any vehicle door has opened and all doors are now closed.
Keyless Unlocking/Locking from the Passenger Doors
When the doors are locked and the remote key is within 1 m (3 ft) of the door handle, pressing the door handle button on a passenger door handle will unlock all doors. Pressing the door handle button will cause all doors to lock if any of the following occur:
.
The door handle button was used to unlock all doors.
.
Any vehicle door has opened and all doors are now closed.
Disable/Enable Keyless Unlocking of Exterior Door Handles and Trunk
If equipped, keyless unlocking of the exterior door handles and trunk can be disabled and enabled.
Disabling Keyless Unlocking:
With the vehicle off, press and hold and K on the remote key at the same
time for approximately four seconds. The turn signal lamps will flash four times quickly to indicate access is disabled. Using any exterior handle to unlock the doors or open the trunk
Q
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) - 2020 - CRC - 11/21/19
will cause the turn signal lamps to flash four times quickly, indicating access is disabled. If disabled, disarm the alarm system before starting the vehicle.
Disabling Keyless Unlocking may also be configured under Vehicle Personalization. See Vehicle Personalization 0 116.
Enabling Keyless Unlocking:
With the vehicle off, press and hold and K on the remote key at the same
time for approximately four seconds. The turn signal lamps will flash twice quickly to indicate access is enabled.
Enabling Keyless Unlocking may also be configured under Vehicle Personalization. See Vehicle Personalization 0 116.
Passive (Walkaway) Locking
The Keyless Access system will lock the vehicle several seconds after all doors are closed if the vehicle is off and at least one remote key has been removed or none remain in the vehicle.
If equipped, the fuel door will also lock.
If other electronic devices interfere with the remote key signal, the vehicle may not detect the remote key inside the vehicle. If passive (walkaway) locking is enabled, the doors may lock with the remote key inside the vehicle. Do not leave the remote key in an unattended vehicle.
To customize the doors to
Q
automatically lock when exiting the vehicle, see Vehicle Personalization 0 116.
If equipped with remote folding mirror, passive (walkaway) locking may fold the mirrors. See Folding Mirrors 0 26.
Temporary Disable of Passive (Walkaway) Locking
Temporarily disable passive locking by pressing and holding interior door switch with a door open
for at least four seconds, or until three chimes are heard. Passive (walkaway) locking will then remain disabled until the vehicle is turned on.
K on the
KEYS, DOORS, AND WINDOWS 11
Remote Key Left In Vehicle Alert
When the vehicle is turned off and a remote key is left in the vehicle, the horn will chirp three times after all doors are closed. To turn on or off see Vehicle Personalization 0 116.
Remote Key No Longer In Vehicle Alert
If the vehicle is on, with a door open, and then all doors are closed, the vehicle will check for a remote key inside. If a remote key is not detected, the Driver Information Center (DIC) will display NO KEY FOUND and the horn will chirp three times.
This occurs only once each time the vehicle is driven. See Vehicle Personalization 0 116.
Keyless Trunk Opening
Press the touch pad on the rear of the trunk above the license plate if the remote key is within 1 m (3 ft).
Mechanical Key Access
To access a vehicle with a weak remote key battery, see Door Locks 0 16.
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12 KEYS, DOORS, AND WINDOWS
Programming Remote Keys to the Vehicle
Only remote keys programmed to the vehicle will work. If a remote key is lost or stolen, a replacement can be purchased and programmed through your dealer. The vehicle can be reprogrammed so that lost or stolen remote keys no longer work. Each vehicle can have up to eight remote keys matched to it.
Programming with Recognized Remote Keys
A new key can be programmed to the vehicle when there are two recognized keys.
To program, the vehicle must be in RUN and both the recognized and new remote keys must be with you.
1. Place the two recognized remote keys on the passenger seat.
2. Scroll to the DIC menu to "Remote Key Relearn" and select.
The DIC displays READY FOR REMOTE #3, 4, 5, etc.
3. Place the new remote key into the rear cupholder.
4. Press ENGINE START/STOP. When the remote key is learned the DIC display will show that it is ready to program the next remote key.
5. Remove the remote key from the rear cupholder and press
on the remote key.
To program additional remote keys, repeat Steps 4–5.
K or Q
When all additional remote keys are programmed, press and hold ENGINE START/STOP for approximately 12 seconds to exit programming mode.
Programming without Recognized Remote Keys
If two currently recognized remote keys are not available, see your dealer to program new remote keys.
Starting the Vehicle with a Low Remote Key Battery
For improved vehicle security, the remote key is equipped with a motion sensor. When starting the vehicle, if the remote key has been idle for a while, the DIC may display KEY IN SLEEP MODE, MOVE KEY, THEN START. Move the remote key slightly and try starting the vehicle. When starting the vehicle, if the remote key battery is depleted or there is signal interference, the DIC may display NO KEY FOUND, REPLACE BATTERY IN KEY or NO REMOTE KEY WAS DETECTED PLACE KEY IN KEY
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) - 2020 - CRC - 11/21/19
POCKET THEN START YOUR VEHICLE, follow the steps shown below:
1. Place the remote key into the rear cupholder.
2. With the vehicle in P (Park) or N (Neutral) press the brake pedal and ENGINE START/STOP.
Replace the remote key battery as soon as possible.
Battery Replacement
Warning
{
Never allow children to play with the remote key. The remote key contains a small battery, which can be a choking hazard. If swallowed, internal burns can occur, resulting in severe injury or death. Seek medical attention immediately if a battery is swallowed.
Warning
{
To avoid personal injury, do not touch metal surfaces on the remote key when it has been exposed to extreme heat. These surfaces can be hot to the touch at temperatures above 59 °C (138 °F).
KEYS, DOORS, AND WINDOWS 13
Caution
When replacing the battery, do not touch any of the circuitry on the remote key. Static from your body could damage the remote key.
Caution
Always replace the battery with the correct type. Replacing the battery with an incorrect type could potentially create a risk of battery explosion. Dispose of used batteries according to instructions and local laws. Do not attempt to burn, crush, or cut the used battery, and avoid exposing the battery to environments with extremely low air pressures or high temperatures.
Replace the battery if the DIC displays REPLACE BATTERY IN KEY.
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14 KEYS, DOORS, AND WINDOWS
1. Press the button on the side of the remote key near the bottom and pull the mechanical key out. Never pull the mechanical key out without pressing the button.
2. Use the mechanical key blade in the slot to remove the battery cover by hand.
3. Remove the seal by pulling on the tab to access the battery.
4. Remove the old battery. Do not use a metal object.
5. Insert the new battery, negative side facing down. Replace with a CR2450 or equivalent battery.
6. Replace the seal, pushing it into the groove around the battery compartment.
7. Replace the battery cover by snapping it back into the remote key.
8. Reinsert the mechanical key.
Remote Vehicle Start
This feature allows the engine to be started from outside the vehicle.
S : This button on the remote key is
for remote start.
The climate control system will use the previous settings during a remote start. The rear window defogger may come on during remote start based on
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) - 2020 - CRC - 11/21/19
cold ambient conditions. The rear defog indicator light does not come on during remote start.
If equipped, the heated and ventilated front seats may also come on when the vehicle personalization setting is enabled. See Heated and Ventilated Front Seats 0 40.
If equipped with a remote start heated steering wheel, it may come on during a remote start. See Heated Steering Wheel 0 86.
Laws in some local communities may restrict the use of remote starters. For example, some laws may require a person using remote start to have the vehicle in view. Check local regulations for any requirements.
If your vehicle is low on fuel, do not use the remote start feature. The vehicle may run out of fuel.
The remote key range may be shorter while the vehicle is running.
Other conditions can affect the performance of the remote key. See
Remote Keyless Entry (RKE) System
0 8.
You are allowed multiple starts totaling 30 minutes of engine run time. The maximum run time of a single start is 15 minutes, and it will shut off automatically. You could do three 10 minute starts if you manually shut off after 10 minutes. The last 10 minute start would shut off automatically as your total 30 minutes will have been used.
Starting the Engine Using Remote Start
1. Press
2. The engine will shut off after
S twice on the remote
key. The turn signal lamps will flash. The lamps flash to confirm the request to remote start the vehicle has been received. During the remote start, the doors will be locked and the parking lamps will remain on as long as the engine is running.
15 minutes or after the remainder of the 30 minute total running time is used, unless you stop the remote start before engine running has completed or the vehicle is turned on.
KEYS, DOORS, AND WINDOWS 15
3. After entering the vehicle during a remote start, press the brake and ENGINE START/STOP with the remote key in the vehicle to drive the vehicle.
Additional Engine Run Time
Remote start can be used for up to 30 minutes of total engine run time.
After two remote starts of 15 minutes, or multiple shorter time starts totaling 30 minutes have been used, the vehicle must be started normally before the remote start can be used again.
Canceling a Remote Start
To cancel a remote start, do any of the following:
.
Press
S. The parking lamps will
turn off.
.
Turn on the hazard warning flashers.
.
Turn the vehicle on and then back off.
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16 KEYS, DOORS, AND WINDOWS
Conditions in Which Remote Start Will Not Work
The remote start will not operate if any of the following occur:
.
The ignition is in any mode other than off.
.
A remote key is in the vehicle.
.
The hood is not closed.
.
The hazard warning flashers are on.
.
There is an emission control system malfunction.
.
The engine coolant temperature is too high.
.
The oil pressure is low.
.
The 30 minutes of engine run time have been used.
.
The vehicle is not in P (Park).
Door Locks
Warning
{
Unlocked doors can be dangerous.
(Continued)
Warning (Continued)
.
Passengers, especially children, can easily open the doors and fall out of a moving vehicle. The doors can be unlocked and opened while the vehicle is moving. The chance of being thrown out of the vehicle in a crash is increased if the doors are not locked. So, all passengers should wear seat belts properly and the doors should be locked whenever the vehicle is driven.
.
Young children who get into unlocked vehicles may be unable to get out. A child can be overcome by extreme heat and can suffer permanent injuries or even death from heat stroke. Always lock the vehicle whenever leaving it.
.
Outsiders can easily enter through an unlocked door when you slow down or stop
(Continued)
Warning (Continued)
the vehicle. Locking the doors can help prevent this from happening.
To lock or unlock the doors from outside the vehicle:
.
Press
Q or K on the remote key.
See Remote Keyless Entry (RKE) System Operation 0 8.
.
Use the mechanical key in the driver door. The key lock cylinder is covered with a cap.
See Driver Door Key Lock Cylinder Access (In Case of Dead Battery)later in this section.
To lock or unlock the doors from inside the vehicle:
.
Press
Q or K on the power door
lock switch.
.
Pull once on the door handle to unlock the door and again to open the door.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) - 2020 - CRC - 11/21/19
Keyless Access
When the doors are locked and the remote key is within 1 m (3 ft) of the driver door handle, press the lock/ unlock button. When unlocking from the driver door, the first press unlocks that door; press again within five seconds to unlock the passenger door and the trunk. See Remote
Keyless Entry (RKE) System Operation 0 8.
Driver Door Key Lock Cylinder Access (In Case of Dead Battery)
To access the driver door key lock cylinder:
1. Pull the door handle (1) to the open position and hold it open until the cap removal is complete.
2. Insert the mechanical key into the slot (3) on the bottom of the cap (2) and lift the mechanical key upward.
3. Move the cap (2) rearward and remove.
KEYS, DOORS, AND WINDOWS 17
4. Use the mechanical key in the cylinder.
To replace the cap:
1. Pull the door handle (1) to the open position and hold it open until the cap installation is complete.
2. Insert the two tabs (6) at the back of the cap between the seal (5) and the metal base (4).
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18 KEYS, DOORS, AND WINDOWS
5. Check that the cap is secure.
Free-Turning Locks
The door key lock cylinder turns freely when either the wrong mechanical key is used, or the correct mechanical key is not fully inserted. The free-turning door lock feature prevents the lock from being forced open. To reset the lock, turn it to the vertical position with the correct mechanical key fully inserted. Remove the mechanical key and insert it again. If this does not reset the lock, turn the mechanical key halfway around in the cylinder and repeat the reset procedure.
3. Slide the cap forward and press the forward edge to install the cap in place.
4. Release the door handle.
Power Door Locks
Q : Press to lock the doors. The
indicator light in the switch will illuminate when locked.
K : Press to unlock the doors.
Delayed Locking
This feature delays the actual locking of the doors until five seconds after all doors are closed.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) - 2020 - CRC - 11/21/19
When Q is pressed on the power door lock switch with the door open, a chime will sound three times indicating that delayed locking is active.
The doors will then lock automatically five seconds after all doors are closed. If a door is reopened before five seconds have elapsed, the five-second timer will reset once all the doors are closed again.
Press
Q on the door lock switch again,
or press feature and lock the doors immediately.
Delayed locking can be programmed. See Vehicle Personalization 0 116.
Q on the key, to override this
Automatic Door Locks
The doors will lock automatically when all doors are closed, the ignition is on, and the vehicle is shifted out of P (Park).
If a vehicle door is unlocked, and then opened and closed, the doors will lock either when your foot is removed from the brake or the vehicle speed becomes faster than 13 km/h (8 mph).
To unlock the doors:
.
Press
K on the power door lock
switch.
.
Shift the transmission into P (Park).
Automatic door locking cannot be disabled. Automatic door unlocking can be programmed. See Vehicle Personalization 0 116.
Lockout Protection
If the vehicle is on or in ACC/ ACCESSORY and the power door lock switch is pressed with the driver door open, all the doors will lock and only the driver door will unlock.
If the vehicle is off and locking is requested while a door is open, when all doors are closed the vehicle will check for keys inside. If any remote key programmed to the vehicle is detected and the number of keys
KEYS, DOORS, AND WINDOWS 19
inside has not reduced, the driver door will unlock and the horn will chirp three times.
Lockout Protection can be manually overridden with the driver door open
by pressing and holding power door lock switch.
Q on the
Safety Locks
With Folding Mirrors
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) - 2020 - CRC - 11/21/19
20 KEYS, DOORS, AND WINDOWS
remain locked and the indicator light may flash. Release the handle, then press the safety lock twice to deactivate the safety locks.
Without Folding Mirrors
The rear door safety locks prevent passengers from opening the rear doors from inside the vehicle.
Press
{ v to activate the safety locks
on the rear doors. The indicator light in the switch will illuminate when activated.
The rear door power windows are also disabled. See Power Windows 0 29.
Press
{ v again to deactivate the
safety locks.
If an inside rear door handle is being pulled at the same time the safety lock is deactivated, only that door will

Doors

Trunk
Warning
{
Exhaust gases can enter the vehicle if it is driven with the liftgate or trunk/hatch open, or with any objects that pass through the seal between the body and the trunk/ hatch or liftgate. Engine exhaust contains carbon monoxide (CO) which cannot be seen or smelled. It can cause unconsciousness and even death.
If the vehicle must be driven with the liftgate or trunk/hatch open:
.
Close all of the windows.
.
Fully open the air outlets on or under the instrument panel.
.
Adjust the climate control system to a setting that brings in only outside air and
(Continued)
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) - 2020 - CRC - 11/21/19
Warning (Continued)
set the fan speed to the highest setting. See Climate Control Systemsin the Index.
.
If the vehicle is equipped with a power liftgate, disable the power liftgate function.
See Engine Exhaust 0 168.
.
Press
.
Press remote key.
KEYS, DOORS, AND WINDOWS 21
| on the driver door.
X twice quickly on the
Manual Trunk
To release the trunk, the vehicle must be off or the shift lever must be in P (Park).
.
Press the touch pad on the rear of the trunk above the license plate when all doors are unlocked.
The trunk can be opened while the vehicle is locked by pressing the touch pad above the license plate while the remote key is within 1 m (3 ft) of the rear of the vehicle. See Remote Keyless Entry (RKE) System Operation 0 8.
Close the trunk by pulling on the handle. Do not use the handle as a tie-down. Do not press the touch pad while closing the trunk; this will cause the trunk lid to be unlatched.
The trunk has an electric latch. If the vehicle has lost power or the batter y is disconnected, the trunk will not open. If this happens, use the emergency trunk release handle.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) - 2020 - CRC - 11/21/19
22 KEYS, DOORS, AND WINDOWS
Emergency Trunk Release Handle
Caution
Do not use the emergency trunk release handle as a tie-down or anchor point when securing items in the trunk as it could damage the handle.
There is a glow-in-the-dark emergency trunk release handle on the trunk lid. This handle will glow following
exposure to light. Pull the release handle to open the trunk from the inside.
After pulling the emergency trunk release handle, push the handle back into the bezel.

Vehicle Security

This vehicle has theft-deterrent features; however, they do not make the vehicle impossible to steal.
Vehicle Alarm System
This vehicle has an anti-theft alarm system.
The indicator light, on the instrument panel near the windshield, indicates the status of the system.
Off : Alarm system is disarmed.
On Solid : Vehicle is secured during
the delay to arm the system.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) - 2020 - CRC - 11/21/19
Fast Flash : Vehicle is unsecured. A door, the hood, or the trunk is open.
Slow Flash : Alarm system is armed.
Arming the Alarm System
1. Turn off the vehicle.
2. Lock the vehicle in one of three ways:
.
Use the remote key.
.
Use the Keyless Access system.
.
With a door open, press the interior of the door.
3. After 30 seconds the alarm system will arm, and the indicator light will begin to slowly flash indicating the alarm
system is operating. Pressing on the remote key a second time will bypass the 30-second delay and immediately arm the alarm system.
The vehicle alarm system will not arm if the doors are locked with the mechanical key.
Q on
Q
If the driver door is opened without first unlocking with the remote key, the horn will chirp and the lights will flash to indicate pre-alarm. If the vehicle is not started, or the door is
not unlocked by pressing remote key during the 10-second pre-alarm, the alarm will be activated.
The alarm will also be activated if a passenger door, the trunk, or the hood is opened without first disarming the system. When the alarm is activated, the turn signals f lash and the horn sounds for about 30 seconds. The alarm system will then re-arm to monitor the next unauthorized event.
K on the
Disarming the Alarm System
To disarm the alarm system or turn off the alarm if it has been activated:
.
Press
K on the remote key.
.
Unlock the vehicle using the Keyless Access system.
.
Start the vehicle.
To avoid setting off the alarm by accident:
KEYS, DOORS, AND WINDOWS 23
.
Lock the vehicle after all occupants have left the vehicle and all doors are closed.
.
Always unlock a door with the remote key or use the Keyless Access system.
Unlatching the driver door with the mechanical key will not disarm the system or turn off the alarm.
How to Detect a Tamper Condition
If K is pressed on the remote key and the horn chirps and the lights flash three times, a previous alarm occurred while the system was armed.
If the alarm has been activated, a message will appear on the DIC.
Power Sounder, Inclination Sensor, and Intrusion Sensor
In addition to the standard theft-deterrent system features, this system may also have a power sounder, inclination sensor, and intrusion sensor.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) - 2020 - CRC - 11/21/19
24 KEYS, DOORS, AND WINDOWS
.
The power sounder provides an audible alarm which is distinct from the vehicles horn. It has its own power source, and can sound an alarm if the vehicles battery is compromised.
The inclination sensor can set off the alarm if it senses movement of the vehicle, such as when a tire is removed. Make sure the vehicle's alarm is not armed prior to any jacking.
The intrusion sensor monitors the vehicle interior, and can activate the alarm if it senses unauthorized entry into the vehicle's interior. Do not allow passengers or pets to remain in the vehicle when the intrusion sensor is activated.
Before arming the theft-deterrent system and activating the intrusion sensor:
.
Make sure all doors and windows are completely closed.
.
Secure any loose items such as sun glasses.
Make sure there are no obstructions blocking the sensors in the front overhead console.
Inclination and Intrusion Sensor Disable Switch
It is recommended that the intrusion and inclination sensor be deactivated if pets are left in the vehicle or the vehicle is being transported. With the
vehicle turned off, press front overhead console. The indicator light will come on momentarily, indicating that these sensors have been disabled for the next alarm system arming cycle.
Immobilizer
See Radio Frequency Statement 0 331.
Immobilizer Operation
This vehicle has a passive theft-deterrent system.
The system does not have to be manually armed or disarmed.
The vehicle is automatically immobilized when the vehicle is turned off.
The immobilization system is disarmed when the ignition is turned on or to ACC/ACCESSORY and a valid remote key is present in the vehicle.
o in the
The security light, in the instrument cluster, comes on if there is a problem with arming or disarming the theft-deterrent system.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) - 2020 - CRC - 11/21/19
The system has one or more remote keys matched to an immobilizer control unit in the vehicle. Only a correctly matched remote key will start the vehicle. If the remote key is ever damaged, you may not be able to start your vehicle.
When trying to start the vehicle, the security light may come on briefly.
If the engine does not start and the security light stays on, there is a problem with the system. Turn the ignition off and try again.
If the vehicle will not change ignition modes (ACC/ACCESSORY, on, off), and the remote key appears to be undamaged, try another remote key. Or, you may try placing the remote key in the backup location. See
Remote Keyless Entry (RKE) System Operation 0 8.
If the ignition modes will not change with the other remote key or in the backup location, the vehicle needs service. If the ignition does change modes, the first remote key may be faulty. See your dealer.
It is possible for the immobilizer system to learn new or replacement remote keys. Up to eight remote keys can be programmed for the vehicle. To program additional remote keys, see Programming Remote Keys to the Vehicleunder Remote Keyless Entry (RKE) System Operation 0 8.
Do not leave the remote key or device that disarms or deactivates the theft-deterrent system in the vehicle.
KEYS, DOORS, AND WINDOWS 25

Exterior Mirrors

Convex Mirrors
Warning
{
A convex mirror can make things, like other vehicles, look farther away than they really are. If you cut too sharply into the right lane, you could hit a vehicle on the right. Check the inside mirror or glance over your shoulder before changing lanes.
The passenger side mirror is convex shaped. A convex mirror's surface is curved so more can be seen from the driver seat.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) - 2020 - CRC - 11/21/19
26 KEYS, DOORS, AND WINDOWS
Power Mirrors
Memory Mirrors
The vehicle may have memory mirrors. See Memory Seats 0 37.
Side Blind Zone Alert (SBZA)
The vehicle may have SBZA. See Side Blind Zone Alert (SBZA) 0 217.
Lane Change Alert (LCA)
The vehicle may have LCA. See Lane Change Alert (LCA) 0 217.
Folding Mirrors
Power Folding Mirrors
To adjust each mirror:
1. Press
2. Press the arrows on the control
3. Adjust each outside mirror so
4. Press
j or | to select the driver
or passenger side mirror. The indicator light will illuminate.
pad to move the mirror in the desired direction.
that a little of the vehicle and the area behind it can be seen.
j or | again to deselect
the mirror.
Manual Folding Mirrors
The mirrors can be folded inward toward the vehicle to prevent damage when going through an automatic car wash. Push the mirror outward to return it to the original position.
If equipped, press g to power fold the mirrors. Press
The outside mirrors may automatically unfold when the vehicle is driven above 20 km/h (12 mph), but may be folded with the power folding mirror switch. If the vehicle speed is driven above 40 km/h (25 mph), they may automatically unfold and may not be refolded with the power folding mirror switch.
g again to unfold.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) - 2020 - CRC - 11/21/19
Resetting the Power Folding Mirrors
Reset the power folding mirrors if:
.
The mirrors are accidentally obstructed while folding.
.
They are accidentally manually folded/unfolded.
.
The mirrors do not stay in the unfolded position.
.
The mirrors vibrate at normal driving speeds.
Fold and unfold the mirrors one time using the mirror controls to reset them to their normal position. A noise may be heard during the resetting of the power folding mirrors. This sound is normal after a manual folding operation.
Remote Mirror Folding
If equipped with power folding mirrors, and the mirrors have been folded with the power folding mirror switch, they may not be automatically unfolded by the Remote Mirror Folding feature.
If equipped with power folding mirrors, and the mirrors have not been folded with the power folding mirror switch and the vehicle is in P (Park), they may be automatically folded/unfolded as follows:
1. If doors are locked by pressing on the remote key, the mirrors will fold. If doors are unlocked by pressing the mirrors will unfold. See
Remote Keyless Entry (RKE) System Operation 0 8.
2. If doors are locked by pressing the door handle lock/unlock button, the mirrors will fold. If doors are unlocked by pressing the door handle button, the mirrors will unfold. See Keyless Unlocking/Locking from the Driver Doorin Remote Keyless Entry (RKE) System Operation 0 8.
3. If passive locking is enabled and doors are locked by that feature, the mirrors will fold. See Passive Lockingin Remote Keyless Entry (RKE) System Operation 0 8.
I on the remote key,
KEYS, DOORS, AND WINDOWS 27
Heated Mirrors
K : The rear window defogger also
heats the outside mirrors.
See Dual Automatic Climate Control System 0 134.
H
Automatic Dimming Mirror
If the vehicle has the automatic dimming mirror, the driver outside mirror automatically adjusts for the glare of headlamps behind you.
Reverse Tilt Mirrors
If equipped with memory seats, the passenger and/or driver mirror tilts to a preselected position when the vehicle is in R (Reverse). This allows the curb to be seen when parallel parking. The mirror(s) return to the original position when:
.
The vehicle is shifted out of R (Reverse), or remains in R (Reverse) for about 30 seconds.
.
The ignition is turned off.
.
The vehicle is driven in R (Reverse) above a set speed.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) - 2020 - CRC - 11/21/19
28 KEYS, DOORS, AND WINDOWS
Turn this feature on or off through vehicle personalization. See Vehicle Personalization 0 116.

Interior Mirrors

Interior Rearview Mirrors
Adjust the rearview mirror for a clear view of the area behind the vehicle.
Do not spray glass cleaner directly on the mirror. Use a soft towel dampened with water.
Manual Rearview Mirror
If equipped, push the tab forward for daytime use and pull it rearward for nighttime use to avoid glare of the headlamps from behind.
Automatic Dimming Rearview Mirror
If equipped, automatic dimming reduces the glare of the headlamps from behind. This feature comes on when the vehicle is started.

Windows

Warning
{
Never leave a child, a helpless adult, or a pet alone in a vehicle, especially with the windows closed in warm or hot weather. They can be overcome by the extreme heat and suffer permanent injuries or even death from heat stroke.
The vehicle aerodynamics are designed to improve fuel economy performance. This may result in a
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) - 2020 - CRC - 11/21/19
pulsing sound when either rear window is down and the front windows are up. To reduce the sound, open either a front window or the sunroof, if equipped.
Power Windows
Warning
{
Children could be seriously injured or killed if caught in the path of a closing window. Never leave the remote key in a vehicle with children. When there are children in the rear seat, use the window lockout switch to prevent operation of the windows. See Keys 0 7.
Power windows work when the ignition is on, in ACC/ACCESSORY, or when Retained Accessory Power (RAP) is active. See Retained Accessory Power (RAP) 0 163.
Using the window switch, press to open or pull to close the window.
The windows may be temporarily disabled if they are used repeatedly within a short time.
KEYS, DOORS, AND WINDOWS 29
Window Lockout
With Folding Mirrors, Without Folding
This feature stops the rear passenger window switches from working.
.
Press window lockout feature. The indicator light is on when engaged.
The rear door safety locks will also engage.
.
Press
The rear door safety locks will also disengage.
Mirrors Similar
{ 2 to engage the rear
{ 2 again to disengage.
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