2023 CADILLAC XT4 trailer

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Vehicle Care 351
Base level
To replace one of these lamps:1. Turn steering wheel in opposite direction as the
bulb in need of replacing.
2. Remove fasteners retaining the front wheel
liner.
3. Pull back wheel liner to expose back of turn
signal lamp.
4. Remove turn signal bulbsocket from lamp housing
by rotating
counterclockwise. 5. Replace the bulb and
reverse Steps 1–4 to
reinstall.
Back-Up Lamps
To replace one of these bulbs:
1. Remove the fasteners toremove the trailer hitch
cover.
2. Access the lamp through the opening in the
underbody.
3. Disconnect the electrical connector from the bulb
assembly.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
356 Vehicle Care
Fuses Usage7 TRLR ST/TRN LT –Left Trailer
Stop/Turn Lamp
–
8 MSM –Memory
Seat Module –
Driver and
Passenger
9 –
10 SADS –
Semi-active
Damping System/
Spare
–
11 DC DC BAT 2 –
Direct Current to
Direct Current
Converter 2
12 REAR DEFOGGER –
Rear Window
Defogger Fuses Usage
13 OSRVM DEFOG –Outside Rear
View Mirrors
Defogger
14 –
15 PEPS –Passive
Entry Passive
Start Module
16 FRT WIPERS –
Front Wiper
17 PASS/PWR/ SEAT–
Passenger
Power Seat
–
18 L/GATE MTR/ Spare–Liftgate
Motor/Spare
19 DRVR/PWR/ SEAT–Driver
Power Seat/
Memory Seat
Module/Driver
Seat Massage
Control Fuses Usage
21 Sunroof –Power
Sunroof
–
22 –
23 –
26 TCM IGN –
Transmission
Control Module
Ignition
27 Miscellaneous 1 –
Inside Rear View
Mirror –Shifter
Interface Board
Module Run/
Crank –Central
Gateway Module
Run/Crank –
Heating
Ventilation and
Air Conditioning
Control Module
Run/Crank
ignition 3 –
Forward Collision
Alert Display

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
358 Vehicle Care
Fuses Usage51 Spare
54 Spare
55 Spare
56 STARTER MOTOR –Starter
Motor
57 –
58 –
59 HDLP HI BEAM LT/RT–High
Beam Headlamps
60 –
61 Spare
62 Spare
63 Spare
65 A/C CONTROL –
Air Conditioning
Compressor
Clutch Fuses Usage
67 Spare
68 Spare
69 –
70 TRLR PRK LAMP –TRAILER PARK
LAMPS
–
72 STRTR PINION –
STARTER
PINION
74 –
75 ECM PWRTRN IGN 2–Engine
Control Module
Power Train
Ignition 2
76 ECM PWRTRN IGN 1–Engine
Control Module
Power Train
Ignition 1 Fuses Usage
78 Horn
79 WASH PUMPS –
Front and Rear
Washer Pumps
81 ECM –Engine
Control Module
Battery/Spare
82 –
83 IGNITION COILS –Ignition Coils

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Vehicle Care 359
Fuses Usage84 Miscellaneous 3 –
Canister Purge
Solenoid/
Step Cam
Exhaust Solenoid
Cylinder 2 and 3/
Step Cam Intake
Cylinder
Solenoids/Turbo
Bypass Solenoid/
Oxygen Sensor
(Pre & Post))/
Step Cam
Exhaust
Solenoids/O2
Heater/Oxygen
Heated Sensor/
Mass Airflow/
Inlet Air
Temperature/
Throttle Inlet
Absolute
Pressure/
Humidity Sensor/
Coolant Flow
Control Valve
85 Shunt Fuses Usage
86 –
87 –
88 AEROSHUTTER/ Spare–
Aeroshutter
–
89 –
92 TRLR ST/TRN RT/Spare –
Trailer Stop/Turn
Lamp Right/
Spare
93 AHL/CVS –
Canister Vent
Solenoid
95 –
96 –
99 – Relays Usage
20 REAR DEFOGGER –
Rear Defogger/
Outside Rear
View Mirrors
Defogger
25 Front Wiper Control
31 Run/Crank
37 Front Wiper Speed
42 –
64 Starter Motor
66 Powertrain 71 TRAILER PARK LAMPS –Trailer
Park Lamps
–
73 A/C CONTROL –
Air Conditioning
Controls
80 Starter Pinion
90 –

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
Vehicle Care 409
Front Attachment Points
The vehicle is equipped with
specific attachment points to
be used by the towing
provider. These holes may be
used to pull the vehicle from a
flat road surface onto the
flatbed tow truck.
Recreational Vehicle
Towing
Recreational vehicle towing
means towing the vehicle
behind another vehicle, such
as behind a motor home. The
two most common types ofrecreational vehicle towing are
known as dinghy towing and
dolly towing. Dinghy towing is
towing the vehicle with all four
wheels on the ground. Dolly
towing is towing the vehicle
with two wheels on the
ground and two wheels up on
a device known as a dolly.
Here are some important
things to consider before
recreational vehicle towing:
.Become familiar with the
local laws that apply to
recreational vehicle towing.
These laws may vary by
region.
.The towing capacity of the
towing vehicle. Be sure to
read the tow vehicle
manufacturer's
recommendations.
.How far the vehicle will be
towed. Some vehicles have
restrictions on how far and
how long they can be towed.
.The proper towing
equipment. See your dealer
or trailering professional foradditional advice and
equipment
recommendations.
.If the vehicle is ready to be
towed. Just as preparing the
vehicle for a long trip, make
sure the vehicle is prepared
to be towed.
Caution
Use of a shield mounted in
front of the vehicle grille
could restrict airflow and
cause damage to the
transmission. The repairs
would not be covered by the
vehicle warranty. If using a
shield, only use one that
attaches to the towing
vehicle.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
424 Service and Maintenance
Caution (Continued)
on the vehicle. The use of
flushes, solvents, cleaners,
or lubricants that are not
approved by GM could
damage the vehicle,
requiring expensive repairs
that are not covered by the
vehicle warranty.
The Tire Rotation and
Required Services are the
responsibility of the vehicle
owner. It is recommended to
have your dealer perform
these services every
12 000 km/7,500 mi. Proper
vehicle maintenance helps to
keep the vehicle in good
working condition, improves
fuel economy, and reduces
vehicle emissions.
Because of the way people
use vehicles, maintenance
needs vary. There may need to
be more frequent checks and
services. The Additional
Required Services - Normal
are for vehicles that:
.Carry passengers and cargo
within recommended limits
on the Tire and Loading
Information label. See
Vehicle Load Limits 0242.
.Are driven on reasonable
road surfaces within legal
driving limits.
.Use the recommended fuel.
See Recommended Fuel
0310.
Refer to the information in the
Maintenance Schedule
Additional Required Services -
Normal Service.
The Additional Required
Services - Severe are for
vehicles that are:
.Mainly driven in heavy city
traffic in hot weather.
.Mainly driven in hilly or
mountainous terrain.
.Frequently towing a trailer.
.Used for high speed or
competitive driving.
.Used for taxi, police,
or delivery service. Refer to the information in the
Maintenance Schedule
Additional Required Services -
Severe Service.
{Warning
Performing maintenance
work can be dangerous and
can cause serious injury.
Perform maintenance work
only if the required
information, proper tools,
and equipment are available.
If they are not, see your
dealer to have a trained
technician do the work. See
Doing Your Own Service
Work
0328.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
426 Service and Maintenance
may also be needed if you
notice reduced airflow,
windows fogging up,
or odors. Your local GM
Service location can help you
determine when it is the
right time to replace your
filter.
Every 96 000 km (60,000 mi)
.Replace spark plugs. Inspect
spark plug wires and/or
boots.
Every 161 000 km
(100,000 mi)
.Replace hood and/or body
lift support gas struts. Or
every 10 years, whichever
comes first. See Gas Strut(s)
0 349.
Every 240 000 km
(150,000 mi)
.Change rear axle fluid,
if equipped with AWD. Do
not directly power wash the
transfer case and/or front/
rear axle output seals. High
pressure water can
overcome the seals and contaminate the transfer
case fluid. Contaminated
fluid will decrease the life of
the transfer case and/or
axles and should be
replaced.
.Drain and fill engine cooling
system. Or every six years,
whichever comes first. See
Cooling System
0338.
Severe Conditions
Requiring More Frequent
Maintenance*
.Public service, military,
or commercial use vehicles
to include the following:
‐ Ambulances, police cars,
and emergency rescue
vehicles.
‐ Civilian vehicles such as
light duty pick-up trucks,
SUVs, and passenger cars
that are used in military
applications.
‐ Recovery vehicles such as
tow trucks and flatbed
single vehicle carriers or any vehicle that is
consistently used in towing
trailers or other loads.
‐ High use commercial
vehicles such as courier
delivery vehicles, private
security patrol vehicles,
or any vehicles that
operate on a 24–hour
basis.
‐ Any vehicle consistently
operated in a high sand or
dust environment such as
those used on oil pipelines
and similar applications.
.Vehicles that are regularly
used for short trips of 6 km
(4 mi) or less.
The oil life indicator will show
you when to change the oil
and filter. Under severe
conditions the indicator may
come on before 12 000 km
(7,500 mi).
* Footnote: Under extreme
driving conditions listed
above, it may be necessary
to replace your spark plugs
at more frequent intervals.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
INDEX 473
Tires (cont'd)Wheel Replacement . . . . . . 387
When It Is Time for
New Tires . . . . . . . . . . . . . . . . . . 382
Winter . . . . . . . . . . . . . . . . . . . . . . . . 366
Top Tier Fuel . . . . . . . . . . . . . . . . . 309
Towing Driving Characteristics . . . 314
Equipment . . . . . . . . . . . . . . . . . . . 322
General Information . . . . . . . 313
Recreational Vehicle . . . . . 409
Trailer . . . . . . . . . . . . . . . . . . . . . . . . . . 318
Trailer SwayControl (TSC) . . . . . . . . . . . . . 323
Traction Control System
(TCS)/StabiliTrak
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Control/Electronic Stability Control . . . . . . . . . . . 267
Off Light . . . . . . . . . . . . . . . . . . . . . . 131
Trademarks and License Agreements . . . . . . . 212
Trailer Sway Control (TSC) . . . . . . . 323
Towing . . . . . . . . . . . . . . . . . . . . . . . . . 318
Transmission Automatic . . . . . . . . . . . . . . . . . . . . . 257 Transmission (cont'd)
Fluid, Automatic . . . . . . . . . . . . 336
Transportation Program, Courtesy . . . . . . . . 442
Transporting a Disabled Vehicle . . . . . . . . . 407
Trip Odometer . . . . . . . . . . . . . . . . 122
TTY Users
Customer Assistance . . . . 438
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . . . . . 152
U
Umbrella Storage . . . . . . . . . . . . . 105
Uniform Tire QualityGrading . . . . . . . . . . . . . . . . . . . . . . . 385
Universal Remote
System . . . . . . . . . . . . . . . . . . . . . . . . . 144
Operation . . . . . . . . . . . . . . . . . . . . . 147
Programming . . . . . . . . . . . . . . . . 144
Updates Map Data . . . . . . . . . . . . . . . . . . . . . 187
Software . . . . . . . . . . . . . . . . . . . . . . 163
USB Port . . . . . . . . . . . . . . . . . . . . . . . . 169
Using Infotainment System . . . . . . 160
Navigation System . . . . . . . . . 173
This Manual . . . . . . . . . . . . . . . . . . . . . 2
V
Vehicle
Ahead Indicator . . . . . . . . . . . . . 131
Alarm System . . . . . . . . . . . . . . . . . 32
Canadian Owners . . . . . . . . . . . . . 2
Control . . . . . . . . . . . . . . . . . . . . . . . . 231
Data Recording andPrivacy . . . . . . . . . . . . . . . . . . . . . . 448
Design . . . . . . . . . . . . . . . . . . . . . . . . 229
Identification Number (VIN) . . . . . . . . . . . . . . 432
Load Limits . . . . . . . . . . . . . . . . . . 242
Messages . . . . . . . . . . . . . . . . . . . . . 143
Positioning . . . . . . . . . . . . . . . . . . . 186
Remote Start . . . . . . . . . . . . . . . . . . 18
Security . . . . . . . . . . . . . . . . . . . . . . . . 32
Speed Messages . . . . . . . . . . . 144
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Vehicle Care
Storing the TireSealant and
Compressor Kit . . . . . . . . . . . 398
Tire Pressure . . . . . . . . . . . . . . . . 372
Ventilation, Air . . . . . . . . . . . . . . . . 225
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Voice Recognition . . . . . . . . . . . . 188