CADILLAC XT4 2024 Owners Manual

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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280 Vehicle Care
3. Use the fuse puller to remove the fusefrom the top or side. 4. If the fuse must be replaced
immediately, borrow a replacement fuse
with the same amperage from the fuse
block. Choose a vehicle feature that is
not needed to safely operate the vehicle.
Repeat Steps 2-3.
5. Insert the replacement fuse into the empty slot of the blown fuse.
At the next opportunity, see your dealer to
replace the blown fuse.
Headlamp Wiring
An electrical overload may cause the lamps
to go on and off, or in some cases to
remain off. Have the headlamp wiring
checked right away if the lamps go on and
off or remain off.
Windshield Wipers
If the wiper motor overheats due to heavy
snow or ice, the windshield wipers will stop
until the motor cools and will then restart.
Although the circuit is protected from
electrical overload, overload due to heavy
snow or ice may cause wiper linkage
damage. Always clear ice and heavy snow
from the windshield before using the
windshield wipers. If the overload is caused by an electrical
problem and not snow or ice, be sure to get
it fixed.
Fuses and Circuit Breakers
The wiring circuits in the vehicle are
protected from short circuits by a
combination of fuses and circuit breakers.
This greatly reduces the chance of damage
caused by electrical problems.
{Danger
Fuses and circuit breakers are marked
with their ampere rating. Do not exceed
the specified amperage rating when
replacing fuses and circuit breakers. Use
of an oversized fuse or circuit breaker can
result in a vehicle fire. You and others
could be seriously injured or killed.

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Vehicle Care 281
{Warning
Installation or use of fuses that do not
meet GM’s original fuse specifications is
dangerous. The fuses could fail, and result
in a fire. You or others could be injured
or killed, and the vehicle could be
damaged.
See Accessories and Modifications 0261 and
General Information 0261.
To check or replace a blown fuse, see
Electrical System Overload 0279.
Engine Compartment Fuse Block
The underhood fuse block is in the engine
compartment, on the driver side of the
vehicle.
Caution
Do not pull the engine compartment fuse
block lever, since it is intended only for
service purposes. If pulled, vehicle
malfunction may occur.
Caution
Spilling liquid on any electrical
component on the vehicle may damage
it. Always keep the covers on any
electrical component.
To remove the fuse block cover, press the
clips on the cover and lift it straight up.
The vehicle may not be equipped with all of
the fuses, relays, and features shown.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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282 Vehicle Care
FusesUsage
1 Spare
2 Aeroshutter Fuses
Usage
3 Spare
4 Spare Fuses
Usage
5 Spare
6 –
7 ECM 2 –Engine Control
Module 2/ECM 3– Engine
Control Module 3
8 ECM MAIN– Engine
Control Module Main
9 –
10 OFF ENG –
11 OFF ENG 2/OFF ENG 1
12 CAC –Charge Air Cooler/
ECM –Engine Control
Module
13 TCM –Transmission
Control Module
14 –
15 –
16 –
17 A/C Control
18 –
19 Starter Pinion

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Vehicle Care 283
FusesUsage
20 MCU –Microprocessor
Control Unit
21 –
22 –
23 –
24 –
25 Starter Motor
26 Spare 27 –
28 –
29 –
30 –
31 –
32 Spare
33 Spare
34 ELM 5 –Exterior Lighting
Module 5
35 Power Sounder
36 ELM 4 –Exterior Lighting
Module 4 Fuses
Usage
37 ELM 3 –Exterior Lighting
Module 3
38 MSM_E –Memory Seat
Module
39 BSM –Battery State
Module
40 –
Front Window Switch
41 RDCM BATT 2 –Rear
Drive Control Module
Battery 2
–
42 Headlamp Right and Headlamp Left
43 FRT HTD SEAT MDL –
Front Heated Seat
Module Fuses
Usage
44 RFAM & AFL/AHL/RDCM BAT 2–Radio Frequency
Actuator Module and
Adaptive Forward
Lighting/Automatic
Headlamp Leveling/Rear
Drive Control Module
Battery 2
46 –
47 –
48 DC DC BAT 2 –Direct
Current Direct Current
Battery 2
49 –
50 MTR WDW LIFTER LT –
Motor Window Lifter Left
51 –
52 Passenger Power Seat
53 –
54 TIM 1 –Trailer Interface
Module 1
55 TIM 2 –Trailer Interface
Module 2
56 Trailer Park Lamps

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FusesUsage
57 RDCM BATT 1 –Rear Drive
Control Module Battery 1
58 Driver Power Seat
59 EBCM –Electronic Brake
Control Module
60 Horn 61 Rear Defog
62 Front Wiper
63 Power Tailgate
64 MTR WDW LIFTER RT –
Motor Window Lifter
Right
65 –
66 Sunroof 67 Trailer Run
68 Spare
69 Spare 70 –
71 –
72 FTZM –Fuel Tank Zone
Module Fuses
Usage
73 Handsfree Closure
74 –
75 Spare
76 Spare 77 Spare
78 Trailer Stop/Turn Left and Right
79 TCM (DC to DC) –
Transmission Control
Module
80 –
81 SADS –Semi Active
Dampening Suspension
82 –
83 Washer PumpInstrument Panel Fuse Block
The instrument panel fuse block is on the
driver side of the instrument panel, between
the steering wheel and the door. To access
the fuses, remove the panel, starting at the
top. Once clips are disengaged, the tabs
along the bottom of the door can be
disengaged from the instrument panel to
remove the door.
To reinstall the door, place the bottom tabs
into the slots, and rotate the door into
position, engaging the clips.
The vehicle may not be equipped with all of
the fuses, relays, and features shown.

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FusesUsage
F1 Blower Motor Fuses
Usage
F2 ELM 1 –Exterior Lighting
Module 1
F3 Column Lock
F4 ELM 2 –Exterior Lighting
Module 2
F5 BCM 2 –Body Control
Module 2
F6 Amplifier F7 Clock Spring
F8 DLC –Data Link Connector
F9 BCM 1 –Body Control
Module 1/SIB –Shifter
Interface Board
F10 Headliner/Auxiliary Switch F11 Display and HVAC
F12 Steering Column Lock
F13 Video Driving Monitoring System (DMS)/Safety 2
F14 RC MISC 3/ECM –Ride
Control Miscellaneous 3/
Electronic Control Module
F15 Rear Wiper

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FusesUsage
F16 Cargo APO –Cargo
Auxiliary Power Outlet
F17 Sensing Diagnostic Module (SDM)/Safety 1
F18 RC MISC 1/MISC 2 –Ride
Control Miscellaneous 1/
Miscellaneous 2
F19 Exterior Lighting Module (ELM) TR6
F20 Central Gateway Module(CGM)/Telematics
(OnStar)
F21 –
F22 European Trailer
F23 Auxiliary Power Outlet (APO) Cigar
F24 Wireless Charger F25 USB
F26 ELM 6 –Exterior Lighting
Module 6
F27 VCU AUX JACK –Vehicle
Communication Unit
Auxiliary Jack Fuses
Usage
F28 ELM 7– Exterior Lighting
Module 7
F29 –
F30 –
F31 BCM 3 –Body Control
Module 3
F32 HSWM –Heated Steering
Wheel Module
F33 –
F34 STEERING CLMN ADJ MDL –
Steering Column Adjacent
Module
F35 Amplifier
F36 DC/DC BATT 2 F37 –
F38 –
F39 BCM 4 –Body Control
Module 4
F40 – Relay
Usage
CB01 Auxiliary Power Outlet
(APO) Row 2
CB02 Auxiliary Power Outlet
(APO) Row 1
Wheels and Tires
Tires
Every new GM vehicle has high-quality
tires made by a leading tire
manufacturer. See the warranty manual
for information regarding the tire
warranty and where to get service. For
additional information refer to the tire
manufacturer.
{Warning
.Poorly maintained and improperly
used tires are dangerous.
.Overloading the tires can cause
overheating as a result of too
much flexing. There could be a
blowout and a serious crash. See
Vehicle Load Limits
0170.
(Continued)

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Warning (Continued)
.Underinflated tires pose the same
danger as overloaded tires. The
resulting crash could cause serious
injury. Check all tires frequently to
maintain the recommended
pressure. Tire pressure should be
checked when the tires are cold.
.Overinflated tires are more likely
to be cut, punctured, or broken by
a sudden impact—such as when
hitting a pothole. Keep tires at the
recommended pressure.
.Worn or old tires can cause a
crash. If the tread is badly worn,
replace them.
.Replace any tires that have been
damaged by impacts with
potholes, curbs, etc.
.Improperly repaired tires can cause
a crash. Only your dealer or an
authorized tire service center
should repair, replace, dismount,
and mount the tires.
(Continued)
Warning (Continued)
.Do not spin the tires in excess of
56 km/h (35 mph) on slippery
surfaces such as snow, mud, ice,
etc. Excessive spinning may cause
the tires to explode.
See Tire Pressure for High-Speed
Operation 0293 for inflation pressure
adjustment for high-speed driving.
All-Season Tires
This vehicle may come with all-season tires.
These tires are designed to provide good
overall performance on most road surfaces
and weather conditions. Original equipment
tires designed to GM's specific tire
performance criteria have a TPC specification
code molded onto the sidewall.
Consider installing winter tires on the
vehicle if frequent driving on snow or
ice-covered roads is expected. All-season tires
provide adequate performance for most
winter driving conditions, but they may not
offer the same level of traction or
performance as winter tires on snow or
ice-covered roads. See Winter Tires0287.
Winter Tires
This vehicle was not originally equipped
with winter tires. Winter tires are designed
for increased traction on snow and
ice-covered roads. Consider installing winter
tires on the vehicle if frequent driving on ice
or snow covered roads is expected. See your
dealer for details regarding winter tire
availability and proper tire selection. Also,
see Buying New Tires 0299.
With winter tires, there may be decreased
dry road traction, increased road noise, and
shorter tread life. After changing to winter
tires, be alert for changes in vehicle
handling and braking.
If using winter tires:
.Use tires of the same brand and tread
type on all four wheel positions.
.Use only radial ply tires of the same size,
load range, and speed rating as the
original equipment tires.
Winter tires with the same speed rating as
the original equipment tires may not be
available for H, V, W, Y, and ZR speed rated
tires. If winter tires with a lower speed
rating are chosen, never exceed the tire's
maximum speed capability.

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Summer Tires
This vehicle may come with 235/55R18 or
245/45R20 high performance summer tires.
These tires have a special tread and
compound that are optimized for maximum
dry and wet road performance. This special
tread and compound will have decreased
performance in cold climates, and on ice and
snow. It is recommended that winter tires
be installed on the vehicle if frequent
driving at temperatures below
approximately 5 °C (40 °F) or on ice or snow
covered roads is expected. SeeWinter Tires
0 287.
Caution
High performance summer tires have
rubber compounds that lose flexibility
and may develop surface cracks in the
tread area at temperatures below −7 °C
(20 °F). Always store high performance
summer tires indoors and at
temperatures above −7 °C (20 °F) when
not in use. If the tires have been
subjected to −7 °C (20 °F) or less, let them
warm up in a heated space to at least
5 °C (40 °F) for 24 hours or more before
being installed or driving a vehicle on
(Continued)
Caution (Continued)
which they are installed. Do not apply
heat or blow heated air directly on the
tires. Always inspect tires before use. See
Tire Inspection 0297.
Tire Sidewall Labeling
Useful information about a tire is
molded into its sidewall. The examples
show a typical passenger vehicle tire
and a compact spare tire sidewall.
Passenger Tire Example
(1) Tire Size:The tire size is a
combination of letters and numbers
used to define a particular tire's width,
height, aspect ratio, construction type,
and service description. See the “Tire
Size” illustration in this section.
(2) TPC Spec (Tire Performance Criteria
Specification)
:Original equipment tires
designed to GM's specific tire
performance criteria have a TPC
specification code molded onto the
sidewall. GM's TPC specifications meet
or exceed all federal safety guidelines.
(3) DOT (Department of
Transportation)
:The Department of
Transportation (DOT) code indicates that
the tire is in compliance with the U.S.
Department of Transportation Motor
Vehicle Safety Standards.
DOT Tire Date of Manufacture
:The last
four digits of the TIN indicate the tire
manufactured date. The first two digits
represent the week and the last two
digits, the year. For example, the third
week of the year 2020 would have a

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4-digit DOT date of 0320. Week 01 is
the first full week (Sunday through
Saturday) of each year.
(4) Tire Identification Number (TIN)
:
The letters and numbers following the
DOT (Department of Transportation)
code are the Tire Identification Number
(TIN). The TIN shows the manufacturer
and plant code, tire size, and date the
tire was manufactured. The TIN is
molded onto both sides of the tire,
although only one side may have the
date of manufacture.
(5) Tire Ply Material
:The type of cord
and number of plies in the sidewall and
under the tread.
(6) Uniform Tire Quality Grading
(UTQG)
:Tire manufacturers are
required to grade tires based on three
performance factors: tread wear,
traction, and temperature resistance.
For more information see Uniform Tire
Quality Grading 0301. (7) Maximum Cold Inflation Load
Limit
:Maximum load that can be
carried and the maximum pressure
needed to support that load.
Compact Spare Tire Example
(1) Tire Ply Material:The type of cord
and number of plies in the sidewall and
under the tread.
(2) Temporary Use Only
:The compact
spare tire or temporary use tire should
not be driven at speeds over 80 km/h
(50 mph). The compact spare tire is for
emergency use when a regular road tire
has lost air and gone flat. If the vehicle has a compact spare tire, see
Compact
Spare Tire 0315 and
If a Tire Goes Flat 0303.
(3) Tire Identification Number (TIN)
:
The letters and numbers following the
DOT (Department of Transportation)
code are the Tire Identification Number
(TIN). The TIN shows the manufacturer
and plant code, tire size, and date the
tire was manufactured. The TIN is
molded onto both sides of the tire,
although only one side may have the
date of manufacture.
(4) Maximum Cold Inflation Load
Limit
:Maximum load that can be
carried and the maximum pressure
needed to support that load.
(5) Tire Inflation
:The temporary use
tire or compact spare tire should be
inflated to 420 kPa (60 psi). For more
information on tire pressure and
inflation see Tire Pressure 0292.
(6) Tire Size
:A combination of letters
and numbers define a tire's width,
height, aspect ratio, construction type,