Page 35 of 482

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16406251) - 2023 - CRC - 3/25/22
34 Keys, Doors, and Windows
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.
Power Sounder,
Inclination Sensor, and
Intrusion Sensor
In addition to the standard
theft-deterrent system
features, this system may also
have an inclination sensor, an
intrusion sensor, and power
sounder.
The power sounder provides
an audible alarm that is
different from the vehicle’s
horn. It has its own power
source, and can sound an
alarm when the vehicle’s
battery is compromised. The inclination sensor can set
off the alarm if it senses
movement of the vehicle, such
as a change in vehicle
orientation.
The intrusion sensor monitors
the vehicle interior, and can
set off the alarm if it senses
an 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 a sunshades.
.Make sure there are no
obstructions blocking the
sensors in the front
overhead console.
Page 255 of 482

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16406251) - 2023 - CRC - 3/25/22
254 Driving and Operating
systems will operate as they
do in ON/RUN, but the vehicle
will not be able to be driven.
The engine will not start in
Service Mode. Press ENGINE
START/STOP again to turn
the vehicle off.
Starting the Engine
Place the transmission in the
proper gear, P (Park) or
N (Neutral). To restart the
engine when the vehicle is
already moving, use
N (Neutral).
Caution
Do not try to shift to P (Park)
if the vehicle is moving.
If you do, you could damage
the transmission. Shift to
P (Park) only when the
vehicle is stopped.
Caution
If you add electrical parts or
accessories, you could
change the way the engine
operates. Any resulting
damage would not be
covered by the vehicle
warranty. See Add-On
Electrical Equipment0336.
To start the vehicle: 1. With the Keyless Access system, the remote key
must be in the vehicle.
Press ENGINE START/
STOP with the brake pedal
applied. When the engine
begins cranking, let go of
the button. The idle speed
will go down as the engine
warms up. Do not race the
engine immediately after
starting it.
If the remote key is not in
the vehicle, if there is
interference, or if the
remote key battery is low,
a Driver Information Center (DIC) message will
display. See Remote Key
Operation
09.
Caution
Cranking the engine for long
periods of time, by pressing
ENGINE START/STOP
immediately after cranking
has ended, can overheat and
damage the cranking motor,
and drain the battery. Wait
at least 15 seconds between
each try, to let the cranking
motor cool down.
2. If the engine does not start after five to 10 seconds,
especially in very cold
weather (below −18 °C or
0 °F), it could be flooded
with too much gasoline.
Try pushing the
accelerator pedal all the
way to the floor and hold it
there, then press ENGINE
START/STOP for up to a
maximum of 15 seconds.
Wait at least 15 seconds
between each try, to allow
Page 474 of 482

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16406251) - 2023 - CRC - 3/25/22
INDEX 473
IndicatorPedestrian Ahead . . . . . . . . . . 134
Vehicle Ahead . . . . . . . . . . . . . . . 134
Indicators Warning Lights andGauges . . . . . . . . . . . . . . . . . . . . . . . . 121
Infants and Young
Children, Restraints . . . . . . . . . 83
Information Publication Ordering . . . . . 452
Infotainment
Using the System . . . . . . . . . . 163
Infotainment System . . . . . . . 456
Inspection Multi-Point Vehicle . . . . . . . . . 431
Instrument Cluster . . . . . . . . . . . 122
Instrument Panel
Overview . . . . . . . . . . . . . . . . . . . . . . . . . 5
Interior Rearview Mirrors . . . 39
Introduction . . . . . . . . . . . . . . . . . 2, 159
J
Jump Starting - NorthAmerica . . . . . . . . . . . . . . . . . . . . . 409
K
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Remote . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Keys (cont'd)
Remote Operation . . . . . . . . . . . . 9
L
Labeling, Tire Sidewall . . . . . 378
Lamps
Cornering . . . . . . . . . . . . . . . . . . . . . 155
Courtesy . . . . . . . . . . . . . . . . . . . . . . 156
DaytimeRunning (DRL) . . . . . . . . . . . . . 153
Dome . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Exterior Controls . . . . . . . . . . . 151
Exterior Lamps Off Reminder . . . . . . . . . . . . . . . . . . . . 153
Exterior Lighting Battery Saver . . . . . . . . . . . . . . 158
Flash-to-Pass . . . . . . . . . . . . . . . . 153
High/Low Beam
Changer . . . . . . . . . . . . . . . . . . . . . 153
Malfunction Indicator (Check Engine) . . . . . . . . . . . . . 129
On Reminder . . . . . . . . . . . . . . . . . 138
Reading . . . . . . . . . . . . . . . . . . . . . . . 156
Lane Change Alert (LCA) . . . . . . . . 313
Keep Assist (LKA) . . . . . . . . . . 315
Keep Assist Light . . . . . . . . . . 133
Lap-Shoulder Belt . . . . . . . . . . . . . 63 LATCH System
Replacing Parts after a
Crash . . . . . . . . . . . . . . . . . . . . . . . . . . 97
LATCH, Lower Anchors and Tethers for
Children . . . . . . . . . . . . . . . . . . . . . . . . . 90
LED Lighting . . . . . . . . . . . . . . . . . . 365
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Lighting
Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Illumination Control . . . . . . . . 156
LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . 365
Lights Airbag Readiness . . . . . . . . . . . 127
All-Wheel-Drive . . . . . . . . . . . . . 133
Antilock Brake System(ABS) Warning . . . . . . . . . . . . . 132
Brake System Warning . . . 131
Charging System . . . . . . . . . . . 128
Check Engine (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . 129
Cruise Control Light . . . . . . . 138
Door Ajar . . . . . . . . . . . . . . . . . . . . . . 139
Driver Mode Control . . . . . . . 136
Electric Parking Brake . . . . 132