2021 CADILLAC XT6 wheel alignment

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-14574701) -
2021 - CRC - 2/8/21
VEHICLE CARE 303
Vehicle Care
General Information
General Information . . . . . . . . . . . . . 304
California Proposition65 Warning . . . . . . . . . . . . . . . . . . . . . 304
California Perchlorate Materials Requirements . . . . . . . . . . . . . . . . . . . 305
Accessories and Modifications . . . . . . . . . . . . . . . . . . . 305
Vehicle Checks
Doing Your OwnService Work . . . . . . . . . . . . . . . . . . . . 305
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 306
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . . . . . . . 308
Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . 311
Engine Oil Life System . . . . . . . . . . . 313
Automatic Transmission Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 314
Engine Air Filter Life System . . . . 314
Engine Air Cleaner/Filter . . . . . . . . . 315
Cooling System . . . . . . . . . . . . . . . . . . . 316
Engine Overheating . . . . . . . . . . . . . . 320
Washer Fluid . . . . . . . . . . . . . . . . . . . . . 321
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . 322 Battery - North America . . . . . . . . . 323
All-Wheel Drive . . . . . . . . . . . . . . . . . . 324
Park Brake and P (Park)
Mechanism Check . . . . . . . . . . . . . . 324
Wiper Blade Replacement . . . . . . . 325
Windshield Replacement . . . . . . . . 326
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . 326
Headlamp Aiming
Front Headlamp Aiming . . . . . . . . . 327
Bulb Replacement
LED Lighting . . . . . . . . . . . . . . . . . . . . . 327
Electrical System
Electrical System Overload . . . . . . 327
Fuses and Circuit Breakers . . . . . . 328
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 329
Instrument Panel Fuse Block . . . . 332
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 337
All-Season Tires . . . . . . . . . . . . . . . . . . 337
Winter Tires . . . . . . . . . . . . . . . . . . . . . . 338
Summer Tires . . . . . . . . . . . . . . . . . . . . 338
Tire Sidewall Labeling . . . . . . . . . . . 339 Tire Designations . . . . . . . . . . . . . . . . . 340
Tire Terminology and
Definitions . . . . . . . . . . . . . . . . . . . . . . 341
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 343
Tire Pressure for High-Speed Operation . . . . . . . . . . . . . . . . . . . . . . . . 345
Tire Pressure Monitor System . . . 346
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . . . . . . . . 347
Tire Inspection . . . . . . . . . . . . . . . . . . . 350
Tire Rotation . . . . . . . . . . . . . . . . . . . . . 351
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 352
Buying New Tires . . . . . . . . . . . . . . . . 353
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . 354
Uniform Tire Quality Grading . . . 354
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . . . . . . 356
Wheel Replacement . . . . . . . . . . . . . . 356
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . 356
If a Tire Goes Flat . . . . . . . . . . . . . . . . 357
Tire Changing . . . . . . . . . . . . . . . . . . . . . 358
Compact Spare Tire . . . . . . . . . . . . . . 364
Jump Starting
Jump Starting - North America . . . . . . . . . . . . . . . . . . . . . . . . . 364

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-14574701) -
2021 - CRC - 2/8/21
VEHICLE CARE 351
.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 every
12 000 km (7,500 mi). See
Maintenance Schedule0380.
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 0352 and
Wheel Replacement 0356.
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 0343 and
Vehicle Load Limits 0228. Reset the Tire Pressure Monitor
System. See
Tire Pressure Monitor
Operation 0347.
Check that all wheel nuts are
properly tightened. See “Wheel
Nut Torque ”under Capacities and
Specifications 0394, and
“Removing the Flat Tire and
Installing the Spare Tire ”under
Tire Changing 0358.
{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.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-14574701) -
2021 - CRC - 2/8/21
356 VEHICLE CARE
loading, either separately or in
combination, can cause heat
buildup and possible tire failure.
Wheel Alignment and Tire
Balance
The tires and wheels were aligned and
balanced at the factory to provide the
longest tire life and best overall
performance. Adjustments to wheel
alignment and tire balancing are not
necessary on a regular basis. Consider
an alignment check if there is unusual
tire wear or the vehicle is significantly
pulling to one side or the other. Some
slight pull to the left or right,
depending on the crown of the road
and/or other road surface variations
such as troughs or ruts, is normal.
If the vehicle is vibrating when driving
on a smooth road, the tires and
wheels may need to be rebalanced.
See your dealer for proper diagnosis.
Wheel Replacement
Replace any wheel that is bent,
cracked, or badly rusted or corroded.
If wheel nuts keep coming loose, the
wheel, wheel bolts, and wheel nutsshould be replaced. If the wheel leaks
air, replace it. Some aluminum wheels
can be repaired. See your dealer if any
of these conditions exist.
Your dealer will know the kind of
wheel that is needed.
Each new wheel should have the same
load-carrying capacity, diameter,
width, offset, and be mounted the
same way as the one it replaces.
Replace wheels, wheel bolts, wheel
nuts, or Tire Pressure Monitor System
(TPMS) sensors with new GM original
equipment parts.
{Warning
Using the wrong replacement
wheels, wheel bolts, or wheel nuts
can be dangerous. It could affect
the braking and handling of the
vehicle. Tires can lose air and cause
loss of control, resulting in a crash.
Always use the correct wheel, wheel
bolts, and wheel nuts for
replacement.
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.
Used Replacement Wheels
{Warning
Replacing a wheel with a used one
is dangerous. How it has been used
or how far 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.
Tire Chains
{Warning
If the vehicle has 265/45R21 size
tires, do not use tire chains. There
is not enough clearance. Tire chains
(Continued)

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-14574701) -
2021 - CRC - 2/8/21
388 SERVICE AND MAINTENANCE
cracks or cuts in the tread or
sidewall; or a bulge or split in
the tire.
.Trained dealer technicians can
inspect and recommend the right
tires. Your dealer can also provide
tire/wheel balancing services to
ensure smooth vehicle operation at
all speeds. Your dealer sells and
services name brand tires.
Vehicle Care
To help keep the vehicle looking like
new, vehicle care products are
available from your dealer. For
information on how to clean and
protect the vehicle’s interior and
exterior, see Interior Care 0374 and
Exterior Care 0370.
Wheel Alignment
Wheel alignment is critical for
ensuring that the tires deliver optimal
wear and performance.
.Signs that the alignment may need
to be adjusted include pulling,
improper vehicle handling,
or unusual tire wear.
.Your dealer has the required
equipment to ensure proper wheel
alignment.
Windshield
For safety, appearance, and the best
viewing, keep the windshield clean
and clear.
.Signs of damage include scratches,
cracks, and chips.
.Trained dealer technicians can
inspect the windshield and
recommend proper replacement if
needed.
Wiper Blades
Wiper blades need to be cleaned and
kept in good condition to provide a
clear view.
.Signs of wear include streaking,
skipping across the windshield, and
worn or split rubber.
.Trained dealer technicians can
check the wiper blades and replace
them when needed.

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-14574701) -
2021 - CRC - 2/9/21
428 INDEX
Tires (cont'd)Different Size . . . . . . . . . . . . . . . . . . . . . . 354
If a Tire Goes Flat . . . . . . . . . . . . . . . . 357
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . 350
Pressure . . . . . . . . . . . . . . . . . . . . . 343, 345
Pressure Light . . . . . . . . . . . . . . . . . . . . . 121
Pressure Monitor Operation . . . . . . 347
Pressure Monitor System . . . . . . . . 346
Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . 351
Sidewall Labeling . . . . . . . . . . . . . . . . . 339
Terminology and Definitions . . . . 341
Uniform Tire Quality Grading . . . . 354
Wheel Alignment and Tire
Balance . . . . . . . . . . . . . . . . . . . . . . . . . . 356
Wheel Replacement . . . . . . . . . . . . . . 356
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 352
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 338
Top Tier Fuel . . . . . . . . . . . . . . . . . . . . . . . . 286
Towing Driving Characteristics . . . . . . . . . . . 290
Equipment . . . . . . . . . . . . . . . . . . . . . . . . 297
General Information . . . . . . . . . . . . . . 289
Recreational Vehicle . . . . . . . . . . . . . . 368
Trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293
Trailer Sway Control (TSC) . . . . . . . 300
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 367 Traction
Control System
(TCS)/StabiliTrak Light . . . . . . . . . 120
Off Light . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Traction Control/Electronic Stability Control . . . . . . . . . . . . . . . . . . . 248
Trademarks and License
Agreements . . . . . . . . . . . . . . . . . . . . . . . . 199
Trailer Sway Control (TSC) . . . . . . . . . . . . . . . 300
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 293
Transmission Automatic . . . . . . . . . . . . . . . . . . . . . . . . . 240
Fluid, Automatic . . . . . . . . . . . . . . . . . . 314
Transportation Program, Courtesy . . . . . . . . . . . . . . . . . . . . . . . . . . . 403
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . 112
Turn and Lane-Change Signals . . . . 142
U
Uniform Tire Quality Grading . . . . . . 354
Universal Remote System . . . . . . . . . . 135 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Programming . . . . . . . . . . . . . . . . . . . . . . 135
Updates Map Data . . . . . . . . . . . . . . . . . . . . . . . . . . 175
Software . . . . . . . . . . . . . . . . . . . . . . . . . . . 152 USB Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Using the Navigation System . . . . . . 162
Using the System . . . . . . . . . . . . . . . . . . . 149
Using This Manual . . . . . . . . . . . . . . . . . . . . 2
V
Vehicle
Alarm System . . . . . . . . . . . . . . . . . . . . . . 27
Canadian Owners . . . . . . . . . . . . . . . . . . . . 1
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
Identification Number (VIN) . . . . . 393
Load Limits . . . . . . . . . . . . . . . . . . . . . . . 228
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Personalization . . . . . . . . . . . . . . . . . . . 130
Remote Start . . . . . . . . . . . . . . . . . . . . . . . 14
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Speed Messages . . . . . . . . . . . . . . . . . . . 130
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 367
Vehicle Ahead Indicator . . . . . . . . . . . . 119
Vehicle Care Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 343
Vehicle Data Recording and Privacy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 408
Vehicle Positioning . . . . . . . . . . . . . . . . . 174
Vehicle Security Steering Column Lock . . . . . . . . . . . . . 28
Ventilation, Air . . . . . . . . . . . . . . . . . . . . . 215

Cadillac XT6 Owner Manual (GMNA-Localizing-U.S./Canada-14574701) -
2021 - CRC - 2/9/21
INDEX 429
Video Recorder . . . . . . . . . . . . . . . . . . . . . . 284
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Voice Recognition . . . . . . . . . . . . . . . . . . 175
W
WarningBrake System Light . . . . . . . . . . . . . . . 117
Caution and Danger . . . . . . . . . . . . . . . . . 2
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Warnings Hazard Flashers . . . . . . . . . . . . . . . . . . . 142
Washer Fluid . . . . . . . . . . . . . . . . . . . . . . . . 321
Wheels Alignment and Tire Balance . . . . . 356
Different Size . . . . . . . . . . . . . . . . . . . . . . 354
Replacement . . . . . . . . . . . . . . . . . . . . . . 356
When It Is Time for New Tires . . . . 352
Where to Put the Restraint . . . . . . . . . 77
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Windshield Replacement . . . . . . . . . . . . . . . . . . . . . . 326
Wiper/Washer . . . . . . . . . . . . . . . . . . . . . 102 Winter
Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
Winter Tires . . . . . . . . . . . . . . . . . . . . . . . . . 338
Wiper Blade Replacement . . . . . . . . . . 325
Wipers Rear Washer . . . . . . . . . . . . . . . . . . . . . . 104
Wireless Charging . . . . . . . . . . . . . . . . . . 106