2023 CADILLAC XT4 immobilizer

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
8 Keys, Doors, and Windows
Keys, Doors, and
Windows
Keys and Locks
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Remote Key . . . . . . . . . . . . . . . . . . . . . 9
Remote Key Operation . . . . . . 9
Remote Vehicle Start . . . . . . . 18
Door Locks . . . . . . . . . . . . . . . . . . . . 20
Power Door Locks . . . . . . . . . . 22
Delayed Locking . . . . . . . . . . . . . 22
Automatic Door Locks . . . . . 23
Lockout Protection . . . . . . . . . 23
Safety Locks . . . . . . . . . . . . . . . . . 24
Doors
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . 24
Vehicle Security
Vehicle Security . . . . . . . . . . . . . 32
Vehicle Alarm System . . . . . . 32
Immobilizer . . . . . . . . . . . . . . . . . . . . 33
Immobilizer Operation . . . . . 33
Exterior Mirrors
Convex Mirrors . . . . . . . . . . . . . . 34
Power Mirrors . . . . . . . . . . . . . . . 34
Folding Mirrors . . . . . . . . . . . . . . 35
Heated Mirrors . . . . . . . . . . . . . . 36Automatic Dimming
Mirror . . . . . . . . . . . . . . . . . . . . . . . . . 36
Reverse Tilt Mirrors . . . . . . . . 36
Interior Mirrors
Interior Rearview Mirrors . . . . . . . . . . . . . . . . . . . . . . . . 36
Manual Rearview Mirror . . . 36
Automatic Dimming Rearview Mirror . . . . . . . . . . . . 36
Rear Camera Mirror . . . . . . . . 37
Windows
Windows . . . . . . . . . . . . . . . . . . . . . . . 39
Power Windows . . . . . . . . . . . . . 39
Sun Visors . . . . . . . . . . . . . . . . . . . . . 41
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . 42
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 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.

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.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Instruments and Controls 135
remain illuminated. If it does
not come on under either
condition, contact your dealer.
If the light comes on and stays
on when the engine is running,
it may not have adequate oil
pressure. The oil level may be
low or there may be some
other oil system problem. Turn
the engine off when it is safe
to do so and contact your
dealer.
Low Fuel Warning
Light
A Low Fuel Warning Light
near the fuel gauge comes on
briefly when the ignition is
turned on as a check to show
it is working.It also comes on when the fuel
gauge indicator nears empty.
The light turns off when fuel is
added. If it does not, have the
vehicle serviced.
Security Light
The security light should come
on briefly as the engine is
started. If it does not come on,
have the vehicle serviced by
your dealer. If the system is
working normally, the indicator
light turns off.
If the light stays on and the
engine does not start, there
could be a problem with the
theft-deterrent system. See
Immobilizer Operation
033.
High-Beam On Light
This light comes on when the
high-beam headlamps are in
use. See Headlamp High/
Low-Beam Changer 0150.
IntelliBeam Light
This light comes on when the
IntelliBeam system,
if equipped, is enabled. See
Exterior Lamp Controls 0148.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
INDEX 467
I
If the System NeedsService . . . . . . . . . . . . . . . . . . . . . . . . . 187
Ignition Positions . . . . . . . . . . . . .247
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 33
Indicator Pedestrian Ahead . . . . . . . . . . 131
Vehicle Ahead . . . . . . . . . . . . . . . 131
Indicators Warning Lights and
Gauges . . . . . . . . . . . . . . . . . . . . . . . 118
Infants and Young Children, Restraints . . . . . . . . . 80
Information
Publication Ordering . . . . . 445
Infotainment Using the System . . . . . . . . . . 160
Infotainment System . . . . . . . 450
Inspection Multi-Point Vehicle . . . . . . . . . 427
Instrument Cluster . . . . . . . . . . . .119
Instrument Panel Overview . . . . . . . . . . . . . . . . . . . . . . . . . 5
Interior Rearview Mirrors . . . 36
Introduction . . . . . . . . . . . . . . . . . 2, 156
J
Jump
Starting - NorthAmerica . . . . . . . . . . . . . . . . . . . . . 404
K
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Remote . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Remote Operation . . . . . . . . . . . . 9
L
Labeling, Tire Sidewall . . . . . 367
LampsCornering . . . . . . . . . . . . . . . . . . . . . 152
Courtesy . . . . . . . . . . . . . . . . . . . . . . 153
DaytimeRunning (DRL) . . . . . . . . . . . . . 150
Dome . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Exterior Controls . . . . . . . . . . . 148
Exterior Lamps Off Reminder . . . . . . . . . . . . . . . . . . . . 150
Exterior Lighting Battery Saver . . . . . . . . . . . . . . 155
Flash-to-Pass . . . . . . . . . . . . . . . . 150
Front Turn Signal . . . . . . . . . . 350
High/Low Beam Changer . . . . . . . . . . . . . . . . . . . . . 150
Malfunction Indicator (Check Engine) . . . . . . . . . . . . . 126 Lamps (cont'd)
On Reminder . . . . . . . . . . . . . . . . . 136
Reading . . . . . . . . . . . . . . . . . . . . . . . 153
Lane Change Alert (LCA) . . . . . . . 304
Keep Assist (LKA) . . . . . . . . . 307
Keep Assist Light . . . . . . . . . . 131
Lap-Shoulder Belt . . . . . . . . . . . . . 60
LATCH System Replacing Parts after aCrash . . . . . . . . . . . . . . . . . . . . . . . . . . 95
LATCH, Lower Anchors
and Tethers for
Children . . . . . . . . . . . . . . . . . . . . . . . . . 86
LED Lighting . . . . . . . . . . . . . . . . . . 350
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Illumination Control . . . . . . . . 153
LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . 350
Lights Airbag Readiness . . . . . . . . . . . 124
All-Wheel-Drive . . . . . . . . . . . . . 130
Antilock Brake System(ABS) Warning . . . . . . . . . . . . . 129
Brake System Warning . . . . . . . . . . . . . . . . . . . . . 128

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
472 INDEX
Starting the Engine . . . . . . . . . 248
Steering . . . . . . . . . . . . . . . . . . . . . . . . . 231Heated Wheel . . . . . . . . . . . . . . . 110
Wheel Adjustment . . . . . . . . . 109
Wheel Controls . . . . . . . . . . . . . 159
Stop/Start System . . . . . . . . . . 249
Storage Center Console . . . . . . . . . . . . . 105
Compartments . . . . . . . . . . . . . . 102
Cupholders . . . . . . . . . . . . . . . . . . . 102
Front . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Glove Box . . . . . . . . . . . . . . . . . . . . . 102
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Roof Rack System . . . . . . . . . 106
Sunglasses . . . . . . . . . . . . . . . . . . . 103
Umbrella . . . . . . . . . . . . . . . . . . . . . . 105
Storage Areas Cargo Cover . . . . . . . . . . . . . . . . . 106
Storing the Tire Sealant and
Compressor Kit . . . . . . . . . . . . . 398
Struts Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . 349
Stuck Vehicle . . . . . . . . . . . . . . . . . . 241
Summer Tires . . . . . . . . . . . . . . . . 366
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . . 41
Sunglass Storage . . . . . . . . . . . . 103
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Surround Vision
System . . . . . . . . . . . . . . . . . . . . . . . . .287
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Navigation . . . . . . . . . . . . . . . . . . . . 177
System Airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Driver Assistance . . . . . . . . . 284
Engine Air Filter Life . . . . . . 336
Forward CollisionAlert (FCA) . . . . . . . . . . . . . . . . . . 297
Global Positioning . . . . . . . . . . 185
Infotainment . . . . . . . . . . . . . . . . 450
Rear Cross Traffic
Alert . . . . . . . . . . . . . . . . . . . . . . . . . . 297
Roof Rack . . . . . . . . . . . . . . . . . . . . . 106
Surround Vision . . . . . . . . . . . . . 287
T
Tachometer . . . . . . . . . . . . . . . . . . . . 122
Teen Driver . . . . . . . . . . . . . . . . . . . . 207
Text Telephone (TTY) Users . . . . . . . . . . . . . . . . . . . . . . . . . . 438
Theft-Deterrent Systems . . . . . . . . . . . . . . . . . . . . . . . . 33
Immobilizer . . . . . . . . . . . . . . . . . . . . 33
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 364
All-Season . . . . . . . . . . . . . . . . . . . 365 Tires (cont'd)
Buying New Tires . . . . . . . . . . 383
Chains . . . . . . . . . . . . . . . . . . . . . . . . 388
Changing . . . . . . . . . . . . . . . . . . . . . 398
Compact Spare . . . . . . . . . . . . 404
Designations . . . . . . . . . . . . . . . . 369
Different Size . . . . . . . . . . . . . . . 385
If a Tire Goes Flat . . . . . . . . . 389
Inspection . . . . . . . . . . . . . . . . . . . 380
Pressure . . . . . . . . . . . . . . . 372, 374
Pressure Light . . . . . . . . . . . . . . 134
Pressure Monitor
Operation . . . . . . . . . . . . . . . . . . 376
Pressure Monitor System . . . . . . . . . . . . . . . . . . . . . . 375
Rotation . . . . . . . . . . . . . . . . . . . . . . . 381
Sealant and
Compressor Kit . . . . . . . . . . . 390
Sealant and Compressor Kit,
Storing . . . . . . . . . . . . . . . . . . . . . . 398
Sidewall Labeling . . . . . . . . . . 367
Terminology and Definitions . . . . . . . . . . . . . . . . . 370
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . . . 385
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . 387