CADILLAC CT4 2023 Owner's Manual

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
20 Keys, Doors, and Windows
3. Slide the cap forward andpress the forward edge to
install the cap in place.
4. Release the door handle. 5. Check that the cap is
secure.
Free-Turning Locks
The door key lock cylinder
turns freely when either the
wrong key is used, or the
correct key is not fully
inserted. The free-turning
door lock feature prevents the
lock cylinder from being forced
open. To reset the lock
cylinder, ensure the correct
key is fully inserted into the
lock cylinder. Rotate the key
until you feel the lock cylinder
click back into place. Remove
the key and reinsert fully,
rotate the key to unlock the
vehicle.
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.
If equipped, the fuel door is
also locked or unlocked using
these features.
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-16500442) -
2023 - CRC - 5/4/22
Keys, Doors, and Windows 21
WhenQis 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
Qon the door lock
switch again, or press
Qon the
key, to override this feature
and lock the doors
immediately.
Delayed locking can be
programmed. To view available
settings for this feature, touch
the Settings icon on the
infotainment home page.
Select “Vehicle” to display the
list of available options and
select “Power Door Locks”.
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:
.PressKon the power door
lock switch.
.Shift the transmission into
P (Park).
Automatic door locking cannot
be disabled. Automatic door
unlocking can be programmed.
To view available settings for
this feature, touch the
Settings icon on the
infotainment home page. Select
“Vehicle” to display the
list of available options and
select “Power Door Locks”.
Lockout Protection
If the vehicle is on or in
accessory mode 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 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
Qon the power
door lock switch.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
22 Keys, Doors, and Windows
Safety Locks
With Folding Mirrors
Without Folding MirrorsThe 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 031.
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. (Continued)

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Keys, Doors, and Windows 23
Warning (Continued)
.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.
.If the vehicle is equipped
with a power liftgate,
disable the power liftgate
function.
See Engine Exhaust 0271.
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.
.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 Key Operation 09.
Close the trunk by pulling on
the handle. Do not use the
handle as a tie-down. Do not
press the touch pad while

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
24 Keys, Doors, and Windows
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 battery is disconnected,
the trunk will not open. If this
happens, enter the rear
compartment by folding the
rear seats down, and pull the
emergency release handle to
open the trunk.
Emergency Trunk Release
HandleCaution
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.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.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Keys, Doors, and Windows 25
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.
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
Qon 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
Qon
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.
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
Kon the 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
flash and the horn sounds for
about 30 seconds. The alarm
system will then re-arm to
monitor the next unauthorized
event.
Disarming the Alarm
System
To disarm the alarm system or
turn off the alarm if it has
been activated:
.PressKon the remote key.
.Unlock the vehicle using the
Keyless Access system.
.Start the vehicle.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
26 Keys, Doors, and Windows
To avoid setting off the alarm
by accident:
.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
IfKis 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.
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.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Keys, Doors, and Windows 27
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 0494.
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 accessory
mode 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 (accessory
mode, on, off), and the remote
key appears to be undamaged,
try another remote key. Or,
you may try placing the

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
28 Keys, Doors, and Windows
remote key in the backup
location. See Remote Key
Operation09.
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
Key Operation 09.
Do not leave the remote key
or device that disarms or
deactivates the
theft-deterrent system in the
vehicle.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.
Power Mirrors
To adjust each mirror: 1. Press
jor|to select the
driver or passenger side
mirror. The indicator light
will illuminate.
2. Press the arrows on the control pad to move the
mirror in the desired
direction.
3. Adjust each outside mirror so that a little of the
vehicle and the area
behind it can be seen.

Cadillac CT4 Owner Manual (GMNA-Localizing-U.S./Canada-16500442) -
2023 - CRC - 5/4/22
Keys, Doors, and Windows 29
4. Pressjor|again to
deselect the mirror.
Memory Mirrors
The vehicle may have memory
mirrors. See Memory Seats
0 41.
Side Blind Zone Alert (SBZA)
The vehicle may have SBZA.
See Side Blind Zone Alert
(SBZA) 0349.
Lane Change Alert (LCA)
The vehicle may have LCA.
See Lane Change Alert (LCA)
0 349.
Folding Mirrors
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.
Power Folding Mirrors
If equipped, pressgto power
fold the mirrors. Press
gagain
to unfold.
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.
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