brake CADILLAC XT4 2023 Owners Manual

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
364 Vehicle Care
Fuses UsageF41 BCM 1 SS –Body
Control Module 1
(Stop/Start) –LED
Indicator Lighting
Control, Accessory
LED Control,
Run-Start LED
Control, Ambient
Lighting LED
Control 2, Liftgate
Latch Motor Control
Signal, Rear Wiper
Control Signal, High
Beam Lamp Control
(Direct Drive), Rear
Fog LED Lamp
Control Signal,
Windshield Washer
Pump Motor Control
Signal, Run/Crank
Relay Control Signal,
ECM/TCM ACC
Wakeup Control
Signal, Left Rear Turn
Control Signal, Rear
Wiper Wash Pump
Control Signal, Brake
Pedal Apply Signal Fuses Usage
F42 RDO –Radio
F43 APO CNSL –Console
Auxiliary Power
Outlet (Circuit
Breaker)
–
F44 Spare –
Relay Usage K1 –
K2 RAP/ACCY
–
Retained
Accessory Power
K3 Content Theft
–
Not Used
K4 –
K5 –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
Limits0242.
(Continued)

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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378 Vehicle Care
and DIC message should go
off after the road tire is
replaced and the sensor
matching process is
performed successfully. See
“TPMS Sensor Matching
Process”later in this section.
.The TPMS sensor matching
process was not done or not
completed successfully after
rotating the tires. The
malfunction light and the DIC
message should go off after
successfully completing the
sensor matching process.
See "TPMS Sensor Matching
Process" later in this section.
.One or more TPMS sensors
are missing or damaged. The
malfunction light and the DIC
message should go off when
the TPMS sensors are
installed and the sensor
matching process is
performed successfully. See
your dealer for service.
.Replacement tires or wheels
do not match the original
equipment tires or wheels.
Tires and wheels other than those recommended could
prevent the TPMS from
functioning properly. See
Buying New Tires
0383.
.Operating electronic devices
or being near facilities using
radio wave frequencies
similar to the TPMS could
cause the TPMS sensors to
malfunction.
If the TPMS is not functioning
properly it cannot detect or
signal a low tire pressure
condition. See your dealer for
service if the TPMS
malfunction light and DIC
message come on and stay on.
Tire Fill Alert (If Equipped)
This feature provides visual
and audible alerts outside the
vehicle to help when inflating
an underinflated tire to the
recommended cold tire
pressure.
When the low tire pressure
warning light comes on: 1. Park the vehicle in a safe, level place. 2. Set the parking brake
firmly.
3. Place the vehicle in P (Park).
4. Add air to the tire that is underinflated. The turn
signal lamp will flash.
When the recommended
pressure is reached, the
horn sounds once and the
turn signal lamp will stop
flashing and briefly turn
solid.
Repeat these steps for all
underinflated tires that have
illuminated the low tire
pressure warning light.{Warning
Overinflating a tire could
cause the tire to rupture
and you or others could be
injured. Do not exceed the
maximum pressure listed on
the tire sidewall. See Tire
Sidewall Labeling 0367 and
Vehicle Load Limits 0242.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
380 Vehicle Care
wheel positions. If it takes
longer, the matching process
stops and must be restarted.
The TPMS sensor matching
process is:1. Set the parking brake.
2. Place the vehicle in Service Mode. See Ignition
Positions 0247.
3. Make sure the Tire Pressure info display
option is turned on. The
info displays on the DIC
can be turned on and off
through the Options menu.
See Driver Information
Center (DIC) 0136.
4. Use the five-way DIC control on the right side of
the steering wheel to scroll
to the Tire Pressure
screen under the DIC info
page. See Driver
Information Center (DIC)
0136.
5. Press and hold the thumbwheel in the center
of the five-way DIC control. The horn sounds twice to
signal the receiver is in
relearn mode and the TIRE
LEARNING ACTIVE
message displays on the
DIC screen.
6. Start with the driver side front tire.
7. Place the relearn tool against the tire sidewall,
near the valve stem. Then
press the button to
activate the TPMS sensor.
A horn chirp confirms that
the sensor identification
code has been matched to
this tire and wheel
position.
8. Proceed to the passenger side front tire, and repeat
Step 7.
9. Proceed to the passenger side rear tire, and repeat
Step 7.
10. Proceed to the driver side rear tire, and repeat
Step 7. The horn sounds
two times to indicate the
sensor identification code has been matched to the
driver side rear tire, and
the TPMS sensor matching
process is no longer active.
The TIRE LEARNING
ACTIVE message on the
DIC display screen
goes off.
11. Turn the vehicle off.
12. Set all four tires to the recommended air pressure
level as indicated on the
Tire and Loading
Information label.
Tire Inspection
We recommend that the
tires, including the spare
tire, if the vehicle has one,
be inspected for signs of
wear or damage at least
once a month.
Replace the tire if:
.The indicators at three or
more places around the
tire can be seen.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Vehicle Care 383
The rubber in tires ages over
time. This also applies to the
spare tire, if the vehicle has
one, even if it is never used.
Multiple factors including
temperatures, loading
conditions, and inflation
pressure maintenance affect
how fast aging takes place.
GM recommends that tires,
including the spare if
equipped, be replaced after six
years, regardless of tread
wear. To identify the age of a
tire, use the tire manufacture
date, which is the last four
digits of the DOT Tire
Identification Number (TIN)
molded into one side of the
tire sidewall. 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 4-digit DOT date
of 0320. Week 01 is the first
full week (Sunday through
Saturday) of each year.Vehicle Storage
Tires age when stored
normally mounted on a parked
vehicle. Park a vehicle that will
be stored for at least a month
in a cool, dry, clean area away
from direct sunlight to slow
aging. This area should be free
of grease, gasoline, or other
substances that can
deteriorate rubber.
Parking for an extended
period can cause flat spots on
the tires that may result in
vibrations while driving. When
storing a vehicle for at least a
month, remove the tires or
raise the vehicle to reduce the
weight from the tires.
Buying New Tires
GM has developed and
matched specific tires for
the vehicle. The original
equipment tires installed
were designed to meet
General Motors Tire
Performance CriteriaSpecification (TPC Spec)
system rating. When
replacement tires are
needed, GM strongly
recommends buying tires
with the same TPC Spec
rating.
GM's exclusive TPC Spec
system considers over a
dozen critical specifications
that impact the overall
performance of the vehicle,
including brake system
performance, ride and
handling, traction control,
and tire pressure
monitoring performance.
GM's TPC Spec number is
molded onto the tire's
sidewall near the tire size.
If the tires have an
all-season tread design, the
TPC Spec number will be
followed by MS for mud
and snow. See Tire
Sidewall Labeling
0367 for
additional information.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Vehicle Care 385
range, speed rating, and
construction (radial) as the
original tires.
The Tire and Loading
Information label indicates
the original equipment tires
on the vehicle. See Vehicle
Load Limits0242.
Different Size Tires
and Wheels
If wheels or tires are installed
that are a different size than
the original equipment wheels
and tires, vehicle performance,
including its braking, ride and
handling characteristics,
stability, and resistance to
rollover may be affected. If the
vehicle has electronic systems
such as antilock brakes,
rollover airbags, traction
control, electronic stability
control, or All-Wheel Drive, the
performance of these systems
can also be affected.
{Warning
If different sized wheels are
used, there may not be an
acceptable level of
performance and safety if
tires not recommended for
those wheels are selected.
This increases the chance of
a crash and serious injury.
Only use GM specific wheel
and tire systems developed
for the vehicle, and have
them properly installed by a
GM certified technician.
See Buying New Tires 0383
and Accessories and
Modifications 0327.
Uniform Tire Quality
Grading
The following information
relates to the system
developed by the United
States National Highway
Traffic Safety
Administration (NHTSA), which grades tires by
treadwear, traction, and
temperature performance.
This applies only to
vehicles sold in the United
States. The grades are
molded on the sidewalls of
most passenger car tires.
The Uniform Tire Quality
Grading (UTQG) system
does not apply to deep
tread, winter tires, compact
spare tires, tires with
nominal rim diameters of
10 to 12 inches
(25 to 30 cm), or to some
limited-production tires.
While the tires available on
General Motors passenger
cars and light trucks may
vary with respect to these
grades, they must also
conform to federal safety
requirements and
additional General Motors
Tire Performance Criteria
(TPC) standards.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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388 Vehicle Care
Warning (Continued)
it has been driven may be
unknown. It could fail
suddenly and cause a crash.
When replacing wheels, use
a new GM original
equipment wheel.
Caution
The wrong wheel can also
cause problems with bearing
life, brake cooling,
speedometer or odometer
calibration, headlamp aim,
bumper height, vehicle
ground clearance, and tire or
tire chain clearance to the
body and chassis.
Tire Chains
{Warning
If the vehicle has 235/60R18
or 245/45R20 size tires, do
not use tire chains. There is(Continued)
Warning (Continued)
not enough clearance. Tire
chains used on a vehicle
without the proper amount
of clearance can cause
damage to the brakes,
suspension, or other vehicle
parts. The area damaged by
the tire chains could cause
loss of control and a crash.
Use another type of traction
device only if its
manufacturer recommends
it for the vehicle's tire size
combination and road
conditions. Follow that
manufacturer's instructions.
To avoid vehicle damage,
drive slow and readjust or
remove the traction device if
it contacts the vehicle. Do
not spin the wheels. If
traction devices are used,
install them on the front
tires.
Caution
If the vehicle is equipped
with a tire size other than
235/60R18 or 245/45R20,
use tire chains only where
legal and only when
necessary. Use low profile
chains that add no more
than 12 mm thickness to the
tire tread and inner sidewall.
Use chains that are the
proper size for the tires.
Install them on the tires of
the front axle. Do not use
chains on the tires of the
rear axle. Tighten them as
tightly as possible with the
ends securely fastened.
Drive slowly and follow the
chain manufacturer's
instructions. If the chains
contact the vehicle, stop and
retighten them. If the
contact continues, slow
down until it stops. Driving(Continued)

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Vehicle Care 389
Caution (Continued)
too fast or spinning the
wheels with chains on will
damage the vehicle.
If a Tire Goes Flat
It is unusual for a tire to blow
out while driving, especially if
the tires are maintained
properly. See Tires0364. If air
goes out of a tire, it is much
more likely to leak out slowly.
But if there is ever a blowout,
here are a few tips about what
to expect and what to do:
If a front tire fails, the flat tire
creates a drag that pulls the
vehicle toward that side. Take
your foot off the accelerator
pedal and grip the steering
wheel firmly. Steer to maintain
lane position, and then gently
brake to a stop, well off the
road, if possible.
A rear blowout, particularly on
a curve, acts much like a skid
and may require the same
correction as used in a skid. Stop pressing the accelerator
pedal and steer to straighten
the vehicle. It may be very
bumpy and noisy. Gently brake
to a stop, well off the road,
if possible.{Warning
Driving on a flat tire will
cause permanent damage to
the tire. Re-inflating a tire
after it has been driven on
while severely underinflated
or flat may cause a blowout
and a serious crash. Never
attempt to re-inflate a tire
that has been driven on
while severely underinflated
or flat. Have your dealer or
an authorized tire service
center repair or replace the
flat tire as soon as possible.
{Warning
Lifting a vehicle and getting
under it to do maintenance
or repairs is dangerous
without the appropriate
safety equipment and
training. If a jack is provided
with the vehicle, it is
designed only for changing a
flat tire. If it is used for
anything else, you or others
could be badly injured or
killed if the vehicle slips off
the jack. If a jack is provided
with the vehicle, only use it
for changing a flat tire.
If a tire goes flat, avoid further
tire and wheel damage by
driving slowly to a level place,
well off the road, if possible.
Turn on the hazard warning
flashers. See Hazard Warning
Flashers 0152.
If your vehicle is loaded at or
near maximum cargo capacity,
it may be difficult to fit the jack
under the vehicle due to the

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
16412876) - 2023 - CRC - 3/25/22
390 Vehicle Care
environment (shoulder slope,
road debris, etc.). Removal of
some weight may improve the
ability to fit the jack under the
vehicle at the correct jacking
location.
{Warning
Changing a tire can be
dangerous. The vehicle can
slip off the jack and roll over
or fall causing injury or
death. Find a level place to
change the tire. To help
prevent the vehicle from
moving:1. Set the parking brake firmly.
2. Put the vehicle in P (Park).
3. Turn the vehicle off and do not restart the vehicle
while it is raised.
4. Do not allow passengers to remain in the vehicle.
(Continued)
Warning (Continued)
5. Place wheel blocks,if equipped, on both sides
of the tire at the
opposite corner of the
tire being changed.
This vehicle may come with a
jack and spare tire or a tire
sealant and compressor kit. To
use the jacking equipment to
change a spare tire safely,
follow the instructions below.
Then see Tire Changing 0398.
To use the tire sealant and
compressor kit, see Tire
Sealant and Compressor Kit
0 390.
When the vehicle has a flat
tire (2), use the following
example as a guide to assist
you in the placement of wheel
blocks (1), if equipped.
1. Wheel Block (If Equipped)
2. Flat Tire
The following information
explains how to repair or
change a tire.
Tire Sealant and
Compressor Kit
{Warning
Idling a vehicle in an
enclosed area with poor
ventilation is dangerous.
Engine exhaust may enter
the vehicle. Engine exhaust
contains carbon monoxide
(CO) which cannot be seen
or smelled. It can cause (Continued)

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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402 Vehicle Care
10. Remove any rust or dirtfrom the wheel bolts,
mounting surfaces, and
spare wheel.
11. Place the compact spare tire on the wheel-mounting
surface.
{Warning
Never use oil or grease on
bolts or nuts because the
nuts might come loose. The
vehicle's wheel could fall off,
causing a crash.
12. Reinstall the wheel nuts. Tighten each nut by hand
until the wheel is held
against the hub.
13. Lower the vehicle by turning the jack handle
counterclockwise.
{Warning
Wheel nuts that are
improperly or incorrectly
tightened can cause the
(Continued)
Warning (Continued)
wheels to become loose or
come off. The wheel nuts
should be tightened with a
torque wrench to the proper
torque specification after
replacing. Follow the torque
specification supplied by the
aftermarket manufacturer
when using accessory
locking wheel nuts. See
Capacities and
Specifications0433 for
original equipment wheel nut
torque specifications.
Caution
Improperly tightened wheel
nuts can lead to brake
pulsation and rotor damage.
To avoid expensive brake
repairs, evenly tighten the
wheel nuts in the proper
sequence and to the proper (Continued)
Caution (Continued)
torque specification. See
Capacities and
Specifications0433 for the
wheel nut torque
specification.
14. Tighten the wheel nuts firmly in a crisscross
sequence, as shown.
15. Lower the jack all the way and remove the jack from
under the vehicle.
16. Tighten the wheel nuts firmly with the wheel
wrench.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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406 Vehicle Care
4. Discharged BatteryNegative (−) Terminal
The discharged battery
positive (+) terminal and the
discharged battery negative
(–) terminal are on the driver
side of the vehicle.
The good battery negative (–)
terminal and good battery
positive (+) terminal are on the
battery of the vehicle
providing the jump start.
The discharged battery
positive (+) terminal is under a
cover. Remove the cover to
expose the terminal.
1. Check the other vehicle. It must have a 12-volt
battery with a negative
ground system.
Caution
If the other vehicle does not
have a 12-volt system with a
negative ground, both
vehicles can be damaged.
Only use a vehicle that has a
(Continued)
Caution (Continued)
12-volt system with a
negative ground for jump
starting.
2. Position the two vehicles so that they are not
touching.
3. Set the parking brake firmly and put the
transmission in P (Park).
See Shifting Into Park
0254.
Caution
If any accessories are left on
or plugged in during the
jump starting procedure,
they could be damaged. The
repairs would not be
covered by the vehicle
warranty. Whenever
possible, turn off or unplug
all accessories on either
vehicle when jump starting. 4. Turn the ignition off. Turn
off all lights and
accessories in both
vehicles, except the hazard
warning flashers if needed.
{Warning
An electric fan can start up
even when the engine is not
running and can injure you.
Keep hands, clothing, and
tools away from any
underhood electric fan.
{Warning
Using a match near a
battery can cause battery
gas to explode. People have
been hurt doing this, and
some have been blinded.
Use a flashlight if you need
more light.
Battery fluid contains acid
that can burn you. Do not
get it on you. If you
accidentally get it in your
(Continued)