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 Company” for 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
owner’s 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 owner’s 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 Replacement” later 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
Operation” later 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.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - CRC - 11/21/19
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.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - CRC - 11/21/19
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.
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - CRC - 11/21/19
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).
Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-13183937) -
2020 - CRC - 11/21/19
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 Systems” in 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 vehicle’s horn. It has its own
power source, and can sound an alarm
if the vehicle’s 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
Vehicle” under 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 Door” in 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
Locking” in 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.
Loading...