Page 33 of 476

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
32 Keys, Doors, and Windows
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.
Fast Flash : Vehicle is
unsecured. A door, the hood,
or the liftgate is open.
Slow Flash : Alarm system is
armed.
Arming the Alarm System
1. Close the liftgate and the hood. 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 inside
Q.
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 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 liftgate, 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 for the next
unauthorized event.
Page 34 of 476

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Keys, Doors, and Windows 33
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.
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.
Unlocking the driver door with
the key will not disarm the
system or turn off the alarm.
How to Detect a Tamper
Condition
IfKis pressed and the horn
chirps and the lights flash
three times, the alarm was
activated while the alarm
system was armed.
If the alarm system has been
activated, a message will
appear on the DIC.
Immobilizer
See Radio Frequency
Statement 0446.
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
on or in 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 your
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 when the
ignition is turned on.
Page 35 of 476

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
34 Keys, Doors, and Windows
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
remote key in the front
cupholder located in the
center console. See Remote
Key Operation09.
If the ignition mode will not
change with the other remote
key or in the front cupholder,
your vehicle needs service.
If the ignition does change
modes, the first remote key
may be faulty. See your dealer
who can service the
theft-deterrent system and
have a new remote key
programmed to the vehicle.
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 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 surface is curved so
more can be seen from the
driver seat.
Power Mirrors
To adjust each mirror:
1. Press
}or|to choose
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.
Page 36 of 476

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Keys, Doors, and Windows 35
3. Adjust each outside mirrorso that a little of the
vehicle and the area
behind it can be seen.
4. Press
}or|again to
deselect the mirror.
Memory Mirrors
The vehicle may have memory
mirrors. See Memory Seats
0 50.
Lane Change Alert (LCA)
The vehicle may have LCA.
See Lane Change Alert (LCA)
0 304.
Side Blind Zone Alert (SBZA)
The vehicle may have Side
Blind Zone Alert. See Side
Blind Zone Alert (SBZA) 0304.
Turn Signal Indicator
The vehicle may have a turn
signal indicator on the mirror
housings. See Turn and
Lane-Change Signals 0152.
Folding Mirrors
Manual Folding Mirrors
If equipped, manually fold the
mirrors 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, press to power
fold the mirrors. Press again
to unfold.
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, press and holdQ
on the remote key for
approximately one second to
automatically fold the exterior
mirrors. Press and hold
Kon
the remote key for
Page 37 of 476

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
36 Keys, Doors, and Windows
approximately one second to
unfold. See Remote Key
Operation09.
This feature is turned on or off
through vehicle settings. 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 “Comfort
and Convenience”.
Heated Mirrors
K: Press to heat the mirrors.
See “Rear Window Defogger”
under Dual Automatic Climate
Control System 0221.
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 reverse tilt
mirrors and 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) may move from
their tilted position when:
.The vehicle is shifted out of
R (Reverse), or remains in
R (Reverse) for about
30 seconds.
.The vehicle is turned off.
.The vehicle is driven in
R (Reverse) above a set
speed.
To view available settings
from the infotainment screen,
touch Settings > Vehicle >
Comfort and Convenience.
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
headlamps from behind. The
dimming feature comes on
when the vehicle is started.
Page 38 of 476
Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Keys, Doors, and Windows 37
Rear Camera Mirror
If equipped, this automatic
dimming mirror provides a
wide angle camera view of the
area behind the vehicle.
Pull the tab to turn on the
display. Push the tab to turn it
off. When off the mirror is
automatic dimming. Adjust the
mirror for a clear view of the
area behind the vehicle while
the display is off.
PressVto scroll through the
adjustment options.
Press
tanduto adjust the
settings using the indicators
on the mirror. The indicators
will remain visible for
five seconds after the last
button activation, and the
settings will remain saved. The adjustment options are:
.Brightness
.Zoom
Page 39 of 476
Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
38 Keys, Doors, and Windows
.Tilt
{Warning
The Rear Camera Mirror
(RCM) has a limited view.
Portions of the road,
vehicles, and other objects
may not be seen. Do not
drive or park the vehicle
using only this camera.
Objects may appear closer
than they are. Check the
outside mirrors or glance
over your shoulder when
making lane changes or
merging. Failure to use
proper care may result in
injury, death, or vehicle
damage.Troubleshooting
See your dealer for service if a
blue screen and
3are
displayed in the mirror, and
the display shuts off. Also,
push the tab as indicated to
return to the automatic
dimming mode.
The Rear Camera Mirror may
not work properly or display a
clear image if:
.There is glare from the sun
or headlamps. This may
obstruct objects from view.
If needed, push the tab to
turn off the display.
Page 40 of 476

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Keys, Doors, and Windows 39
.Dirt, snow, or other debris
blocks the camera lens.
Clean the lens with a soft
damp cloth, or if equipped,
with the Rear Camera
Washer. See Rear Window
Wiper/Washer0113.
.The camera’s mounting on
the vehicle has been
damaged, and/or the
position or the mounting
angle of the camera has
changed.
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 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
08.