2022 CADILLAC CT4 engine

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
2 INTRODUCTION
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.
Caution
Caution indicates a hazard that
could result in property or vehicle
damage.
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.”
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.
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
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
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

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
INTRODUCTION 5
1.Air Vents 0207.
2. Exterior Lamp Controls 0128.
Turn Signal Lever. See Turn and
Lane-Change Signals 0131.
3. Tap Shift Controls (If Equipped). See Manual Mode (Electronic Shifter)
0 249 or
Manual Mode (Mechanical Shifter)
0 248.
4. Cruise Control 0266.
Adaptive Cruise Control (Advanced)
0 269 (If Equipped).
Forward Collision Alert (FCA) System
0 301 (If Equipped).
Heated Steering Wheel 083 (If
Equipped).
5. Instrument Cluster (Base Level) 089
or
Instrument Cluster (Uplevel) 091.
Driver Information Center (DIC)
Display. See Driver Information
Center (DIC) (Base Level) 0109 or
Driver Information Center (DIC)
(Uplevel) 0112.
6. Steering Wheel Controls 0139 (If
Equipped).
7. Windshield Wiper/Washer 083. 8. Infotainment. See
Overview0137.
9. Light Sensor. See Automatic
Headlamp System 0130.
10. Hazard Warning Flashers 0131.
11. Dual Automatic Climate Control
System 0202.
12. Heated and Ventilated Front Seats
037 (If Equipped).
13. Lane Keep Assist (LKA) 0309 (If
Equipped).
14. Traction Control/Electronic Stability
Control 0257.
Stop/Start Disable Switch. See Stop/
Start System 0235.
Automatic Vehicle Hold (AVH) 0256.
MODE Button or
«/ªButton
(V-Series Only). See Driver Mode
Control 0258.
15. Wireless Charging Pad (If Equipped) (Out of View). See
Wireless Charging 086.
16. Park Assist Button. See Assistance
Systems for Parking or Backing
0 295. 17. Shift Lever. See
Automatic
Transmission (Mechanical Shifter)
0 242 or
Automatic Transmission (Electronic
Shifter) 0244.
See Manual Transmission 0250.
18. ENGINE START/STOP Button. See Ignition Positions 0232.
19. Horn 083.
20. Steering Wheel Adjustment 083.
21. Head-Up Display (HUD) 0115 (If
Equipped).
22. Hood Release (Out of View). See Hood 0324.
23. Instrument Panel Illumination
Control 0132.
24. Data Link Connector (DLC) (Out of View). See Malfunction Indicator
Lamp (Check Engine Light) 099.
25. Electric Parking Brake 0254 (If
Equipped).

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
8 KEYS, DOORS, AND WINDOWS
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 0120.
Pressing
Qmay also arm the alarm
system. See Vehicle Alarm System 020.
If equipped with remote folding
mirrors, pressing
Qon the remote key
may fold the mirrors. See Folding
Mirrors 023.
K:Press to unlock the driver door
and the fuel door, if equipped. Press
again within five seconds to unlock all
doors. The remote key can be programmed to unlock all doors on
the first button press. See
Vehicle
Personalization 0120. 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
Kwill disarm the alarm
system. See Vehicle Alarm System 020.
Press and hold
Kfor about
three seconds to remotely open the
windows, if enabled. See Vehicle
Personalization 0120.
If equipped with remote folding
mirror, pressing
Kon the remote key
may unfold the mirrors. See Folding
Mirrors 023.
S:PressStwice to start the engine
from outside the vehicle using the
remote key. See Remote Vehicle Start
0 13.
7:Press and release one time to
initiate vehicle locator. The exterior
lamps flash and the horn chirps three
times. Press and hold
7for more than three seconds to sound the panic
alarm. The horn sounds and the turn
signal lamps flash for 30 seconds,
or until
7is pressed again or the
vehicle is started.
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 0120.
If equipped with memory seats,
remote keys 1 and 2 are linked to
seating positions of memory 1 or 2.
See Memory Seats 034.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
KEYS, DOORS, AND WINDOWS 11
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.
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 KEYPOCKET 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).
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.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
KEYS, DOORS, AND WINDOWS 13
Remote Vehicle Start
This feature allows the engine to be
started from outside the vehicle. It is
not available on vehicles with a
manual transmission.
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
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 037.
If equipped with a remote start heated
steering wheel, it may come on during
a remote start. See Heated Steering
Wheel 083. 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
7.
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
Stwice 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 parking lamps
will remain on as long as the
engine is running.
2. The engine will shut off after 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.
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,

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
14 KEYS, DOORS, AND WINDOWS
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:
.PressS. The parking lamps will
turn off.
.Turn on the hazard warning
flashers.
.Turn the vehicle on and then
back off.
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.
.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. (Continued)
Warning (Continued)
.Outsiders can easily enter
through an unlocked door when
you slow down or stop the
vehicle. Locking the doors can
help prevent this from
happening.
To lock or unlock the doors from
outside the vehicle:
.PressQorKon the remote key.
See Remote Keyless Entry (RKE)
System Operation 07.
.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:
.PressQorKon 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-15283641) -
2022 - CRC - 10/12/21
18 KEYS, DOORS, AND WINDOWS
The rear door safety locks prevent
passengers from opening the rear
doors from inside the vehicle.
Press
{vto 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 026.
Press
{ vagain 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
remain locked and the indicator light
may flash. Release the handle, then
press the safety lock twice to
deactivate the safety locks.
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 set the fan
speed to the highest setting. See
“Climate Control Systems” in the
Index.
(Continued)
Warning (Continued)
.If the vehicle is equipped with a
power liftgate, disable the power
liftgate function.
See Engine Exhaust 0241.
Manual Trunk
To release the trunk, the vehicle must
be off or the shift lever must be in
P (Park).
.Press|on the driver door.
.PressXtwice quickly on the
remote key.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-15283641) -
2022 - CRC - 10/12/21
22 KEYS, DOORS, AND WINDOWS
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
oin the
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 0438.
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.
The security light, in the instrument
cluster, comes on if there is a problem
with arming or disarming the
theft-deterrent system.
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
07.
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