spare wheel CADILLAC XT6 2023 Owners Manual

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
244 Driving and Operating
reducing vehicle speed by
shifting to a lower gear. Any
sudden changes could cause
the tires to slide.
Remember: Antilock brakes
help avoid only the
braking skid.
Off-Road Driving
All-Wheel Drive vehicles can
be used for off-road driving.
Vehicles without All-Wheel
Drive and vehicles not
equipped with All Terrain (AT)
or On-Off Road (OOR) tires
must not be driven off-road
except on a level, solid
surface. To contact the tire
manufacturer for more
information about the original
equipment tires, see the
Limited Warranty and Owner
Assistance Information
manual.
Controlling the vehicle is the
key to successful off-road
driving. One of the best ways
to control the vehicle is to
control the speed.
{Warning
When driving off-road,
bouncing and quick changes
in direction can easily throw
you out of position. This
could cause you to lose
control and crash. You and
your passengers should
always wear seat belts.
Before Driving Off-Road
.Have all necessary
maintenance and service
work completed.
.Fuel the vehicle, fill fluid
levels, and check inflation
pressure in all tires, including
the spare, if equipped.
.Read all the information
about All-Wheel Drive
vehicles in this manual.
.Make sure all underbody
shields, if equipped, are
properly attached.
.Know the local laws that
apply to off-road driving. To gain more ground
clearance if needed, it may be
necessary to remove the front
fascia lower air dam. However,
driving without the air dam
reduces fuel economy.
Caution
Operating the vehicle for
extended periods without
the front fascia lower air
dam installed can cause
improper airflow to the
engine. Reattach the front
fascia air dam after off-road
driving.
Loading the Vehicle for
Off-Road Driving
{Warning
.Unsecured cargo on the
load floor can be tossed
about when driving over
rough terrain. You or your
passengers can be struck
by flying objects. Secure
the cargo properly.
(Continued)

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
362 Vehicle Care
Vehicle Care
General Information
General Information . . . . . . 363
California PerchlorateMaterials
Requirements . . . . . . . . . . . . . 363
Accessories and Modifications . . . . . . . . . . . . . 363
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . 364
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . 365
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . 367
Engine Oil . . . . . . . . . . . . . . . . . . . . 370
Engine Oil Life System . . . 373
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 374
Engine Air Filter Life System . . . . . . . . . . . . . . . . . . . . . . 374
Engine Air Cleaner/ Filter . . . . . . . . . . . . . . . . . . . . . . . . . 375
Cooling System . . . . . . . . . . . . 376
Engine Overheating . . . . . . . 381
Washer Fluid . . . . . . . . . . . . . . . . 382
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 383
Brake Fluid . . . . . . . . . . . . . . . . . . 384 Battery - North
America . . . . . . . . . . . . . . . . . . . . . 385
Park Brake and P (Park) Mechanism Check . . . . . . . 386
Wiper Blade
Replacement . . . . . . . . . . . . . . 386
Windshield Replacement . . . . . . . . . . . . . . 388
Gas Strut(s) . . . . . . . . . . . . . . . . . 388
Headlamp Aiming
Front Headlamp Aiming . . . . . . . . . . . . . . . . . . . . . . . 389
Bulb Replacement
LED Lighting . . . . . . . . . . . . . . . . 390
Electrical System
Electrical SystemOverload . . . . . . . . . . . . . . . . . . . 390
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . . . 391
Engine Compartment Fuse Block . . . . . . . . . . . . . . . . . 392
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . 396
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . 398
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 400
All-Season Tires . . . . . . . . . . . . 401 Winter Tires . . . . . . . . . . . . . . . . 402
Tire Sidewall Labeling . . . 402
Tire Designations . . . . . . . . . 405
Tire Terminology and
Definitions . . . . . . . . . . . . . . . . . 405
Tire Pressure . . . . . . . . . . . . . . . 408
Tire Pressure for High-Speed
Operation . . . . . . . . . . . . . . . . . . . 410
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . . . . . 411
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . 412
Tire Inspection . . . . . . . . . . . . . . 416
Tire Rotation . . . . . . . . . . . . . . . . 417
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 418
Buying New Tires . . . . . . . . . . 419
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . 421
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . . . . 421
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . 423
Wheel Replacement . . . . . . 423
Tire Chains . . . . . . . . . . . . . . . . . . 424
If a Tire Goes Flat . . . . . . . . . 425
Tire Changing . . . . . . . . . . . . . . 426
Compact Spare Tire . . . . . . 433

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Vehicle Care 395
Fuses UsageF44 Electronic Brake Control Module
Electric Brake
Booster/Run/
Crank
F45 –
F46 –
F47 –
F48 Rear Wiper 2
F49 Interior Rearview Mirror/Trailer/
Rear Heated
Seats/Run/Crank
F50 Fuel Tank Zone Module/Run/
Crank
F51 Heated Steering Wheel
F52 Folding Seats Switch
F53 Engine Coolant Pump
F54 – Fuses Usage
F55 Air Conditioning Clutch
F56 Not Used/Spare F57 Engine Control Module/Ignition
F58 Transmission Control Module/
Ignition
F59 Engine Control Module Battery
F60 –
F61 O2 Sensor 1/ Aeroshutter/
Mass Air Flow
Sensor
F62 Engine Control Module–Odd
F63 O2 Sensor 2
F64 Engine Control Module–Even
F65 Engine Control Module
Powertrain 1 Fuses Usage
F66 Engine Control Module
Powertrain 2
F67 Engine Control Module
Powertrain 3
F68 –
F69 –
F70 –
F71 –
F72 –
F73 –
F74 –
F75 –
F76 –
F77 –
Relays Usage K1 Starter 1
K2 Run/Crank
K3 Starter 3

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
398 Vehicle Care
Fuses UsageF35 Battery IEC 1 Feed
F36 Electric Power Steering
F37 Rear Seat entertainment/
USB Charge/
Wireless
Charging
Module/
Auxiliary Power
Outlet/Lighter
F38 Body Control Module 8
F39 Steering Wheel Adjustment
Controls/
Lightbar
Circuit
Breakers/ Minifuses Usage
F40 –
F41 – Circuit
Breakers/ Minifuses Usage
F42 Auxiliary Power Outlet (CB)/
Lighter
(mini-fuse)
Rear Compartment
Fuse Block
The rear compartment fuse
block is in the cargo area, on
the driver side of the vehicle
behind the lower trim panel. To access the fuses in the
Rear Electrical Center, remove
the center cargo bin, then
small side bin. See Rear
Storage
0109. See your dealer
if additional assistance is
needed.
The label for this fuse block is
in the spare tire area, on the
foam under the cargo floor.
The vehicle may not be
equipped with all of the fuses,
relays, and features shown.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
402 Vehicle Care
a TPC specification code
molded onto the sidewall.
Original equipment all-season
tires can be identified by the
last two characters of this
TPC code, which will be“MS.”
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
Tires 0402.
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
0419.
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.
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

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
412 Vehicle Care
driver's responsibility to
maintain correct tire pressure,
even if under-inflation has not
reached the level to trigger
illumination of the TPMS low
tire pressure telltale.
Your vehicle has also been
equipped with a TPMS
malfunction indicator to
indicate when the system is
not operating properly. The
TPMS malfunction indicator is
combined with the low tire
pressure telltale. When the
system detects a malfunction,
the telltale will flash for
approximately one minute and
then remain continuously
illuminated. This sequence will
continue upon subsequent
vehicle start-ups as long as
the malfunction exists.
When the malfunction
indicator is illuminated, the
system may not be able to
detect or signal low tire
pressure as intended. TPMS
malfunctions may occur for a
variety of reasons, includingthe installation of replacement
or alternate tires or wheels on
the vehicle that prevent the
TPMS from functioning
properly. Always check the
TPMS malfunction telltale
after replacing one or more
tires or wheels on your vehicle
to ensure that the
replacement or alternate tires
and wheels allow the TPMS to
continue to function properly.
See Tire Pressure Monitor
Operation
0412.
See Radio Frequency
Statement 0477.
Tire Pressure Monitor
Operation
This vehicle may have a Tire
Pressure Monitor System
(TPMS). The TPMS is designed
to warn the driver when a low
tire pressure condition exists.
TPMS sensors are mounted
onto each tire and wheel
assembly, excluding the spare
tire and wheel assembly. The
TPMS sensors monitor the air pressure in the tires and
transmit the tire pressure
readings to a receiver located
in the vehicle.
When a low tire pressure
condition is detected, the
TPMS illuminates the low tire
pressure warning light on the
instrument cluster. If the
warning light comes on, stop
as soon as possible and inflate
the tires to the recommended
pressure shown on the Tire
and Loading Information label.
See Vehicle Load Limits
0252.
A message to check the
pressure in a specific tire
displays in the Driver
Information Center (DIC). The
low tire pressure warning light
and the DIC warning message
come on at each ignition cycle
until the tires are inflated to

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Vehicle Care 415
lamp is still flashing, briefly
press the center of the valve
stem. When the recommended
pressure is reached, the horn
sounds once.
If the turn signal lamp does
not flash within 15 seconds
after starting to inflate the
tire, the tire fill alert has not
been activated or is not
working.
If the hazard warning flashers
are on, the tire fill alert visual
feedback will not work
properly.
The TPMS will not activate the
tire fill alert properly under the
following conditions:
.There is interference from
an external device or
transmitter.
.The air pressure from the
inflation device is not
sufficient to inflate the tire.
.There is a malfunction in
the TPMS.
.There is a malfunction in the
horn or turn signal lamps.
.The identification code of
the TPMS sensor is not
registered to the system.
.The battery of the TPMS
sensor is low.
If the tire fill alert does not
operate due to TPMS
interference, move the vehicle
about 1 m (3 ft) back or
forward and try again. If the
tire fill alert feature is not
working, use a tire pressure
gauge.
TPMS Sensor Matching
Process
Each TPMS sensor has a
unique identification code. The
identification code needs to be
matched to a new tire/wheel
position after rotating the
vehicle’s tires or replacing one
or more of the TPMS sensors.
The TPMS sensor matching
process should also be
performed after replacing a
spare tire with a road tire
containing the TPMS sensor.
The malfunction light and the DIC message should go off at
the next ignition cycle. The
sensors are matched to the
tire/wheel positions, using a
TPMS relearn tool, in the
following order: driver side
front tire, passenger side front
tire, passenger side rear tire,
and driver side rear. See your
dealer for service or to
purchase a relearn tool.
A TPMS relearn tool can also
be purchased. See Tire
Pressure Monitor Sensor
Activation Tool at www.
gmtoolsandequipment.com or
call 1-800-GM TOOLS
(1-800-468-6657).
There are two minutes to
match the first tire/wheel
position, and five minutes
overall to match all four tire/
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.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
416 Vehicle Care
2. Place the vehicle in ServiceMode. See Ignition
Positions 0257.
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) 0144.
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)
0144.
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.
.There is cord or fabric
showing through the
tire's rubber.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
Vehicle Care 417
.The tread or sidewall is
cracked, cut, or snagged
deep enough to show
cord or fabric.
.The tire has a bump,
bulge, or split.
.The tire has a puncture,
cut, or other damage that
cannot be repaired well
because of the size or
location of the damage.
Tire Rotation
Tires should be rotated
according to the interval
specified in the
Maintenance Schedule. See
Maintenance Schedule
0454.
Tires are rotated to
achieve a more uniform
wear for all tires. The first
rotation is the most
important. Anytime unusual wear is
noticed, rotate the tires as
soon as possible, check for
proper tire inflation
pressure, and check for
damaged tires or wheels.
If the unusual wear
continues after the
rotation, check the wheel
alignment. See When It Is
Time for New Tires
0418
and Wheel Replacement
0 423.
Use this rotation pattern
when rotating the tires. Do not include the compact
spare tire in the tire
rotation.
Adjust the front and rear
tires to the recommended
inflation pressure on the
Tire and Loading
Information label after the
tires have been rotated.
See Tire Pressure
0408
and Vehicle Load Limits
0 252.
Reset the Tire Pressure
Monitor System. See Tire
Pressure Monitor
Operation 0412.
Check that all wheel nuts
are properly tightened.
See “Wheel Nut Torque”
under Capacities and
Specifications 0463, and
“Removing the Flat Tire and
Installing the Spare Tire”
under Tire Changing 0426.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-16405819) -
2023 - CRC - 3/22/22
418 Vehicle Care
{Warning
Rust or dirt on a wheel,
or on the parts to which it
is fastened, can cause
wheel nuts to become
loose over time. The
wheel could come off and
cause a crash. When
changing a wheel, remove
any rust or dirt from
places where the wheel
attaches to the vehicle. In
an emergency, a cloth or
paper towel can be used;
however, use a scraper
or wire brush later to
remove all rust or dirt.
Lightly coat the inner
diameter of the wheel hub
opening with wheel bearing
grease after a wheel
change or tire rotation to
prevent corrosion or rust
buildup.{Warning
Do not apply grease to
the wheel mounting
surface, wheel conical
seats, or the wheel nuts
or bolts. Grease applied
to these areas could
cause a wheel to become
loose or come off,
resulting in a crash.
When It Is Time for
New Tires
Factors, such as maintenance,
temperatures, driving speeds,
vehicle loading, and road
conditions affect the wear
rate of the tires.
Treadwear indicators are one
way to tell when it is time for
new tires. Treadwear
indicators appear when the
tires have only 1.6 mm (1/16 in)
or less of tread remaining. See
Tire Inspection 0416 and
Tire Rotation 0417.
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.