2021 CADILLAC XT5 wheel size

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14590481) - 2021 - CRC - 10/22/20
VEHICLE CARE 341
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 Criteria
Specification (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 Specnumber will be followed by MS for
mud and snow. See
Tire Sidewall
Labeling 0327 for additional
information.
GM recommends replacing worn
tires in complete sets of four.
Uniform tread depth on all tires
will help to maintain the
performance of the vehicle.
Braking and handling performance
may be adversely affected if all the
tires are not replaced at the same
time. If proper rotation and
maintenance have been done, all
four tires should wear out at
about the same time. However,
if it is necessary to replace only
one axle set of worn tires, place
the new tires on the rear axle. See
Tire Rotation 0339.
{Warning
Tires could explode during
improper service. Attempting to
mount or dismount a tire could
cause injury or death. Only your
(Continued)
Warning (Continued)
dealer or authorized tire service
center should mount or
dismount the tires.
{Warning
Mixing tires of different sizes
(other than those originally
installed on the vehicle), brands,
tread patterns, or types may
cause loss of vehicle control,
resulting in a crash or other
vehicle damage. Use the correct
size, brand, and type of tire on
all wheels.
{Warning
Using bias-ply tires on the
vehicle may cause the wheel rim
flanges to develop cracks after
many miles of driving. A tire
and/or wheel could fail suddenly
(Continued)

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14590481) - 2021 - CRC - 10/22/20
342 VEHICLE CARE
Warning (Continued)
and cause a crash. Use only
radial-ply tires with the wheels
on the vehicle.
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.
Never exceed the winter tires’
maximum speed capability when
using winter tires with a lower
speed rating.
If the vehicle tires must be
replaced with a tire that does not
have a TPC Spec number, make
sure they are the same size, load
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 Limits 0220.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 0341 and
Accessories and Modifications 0294.
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

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14590481) - 2021 - CRC - 10/22/20
344 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, causing 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 235/55R20 size
tires, do not use tire chains. There
is not enough clearance. Tire chains
(Continued)

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14590481) - 2021 - CRC - 10/22/20
VEHICLE CARE 345
Warning (Continued)
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 235/55R20, use tire
chains only where legal and only
when necessary. Use low profile
chains that add no more than(Continued)
Caution (Continued)
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 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 Tires0325.
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
(Continued)

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14590481) - 2021 - CRC - 10/22/20
358 VEHICLE CARE
5. Route the strap hook through thewheel, as shown.
6. Attach the strap to the other cargo tie-down in the rear of the vehicle.
7. Tighten the strap and secure it using the buckle.
The compact spare is for temporary
use only. Replace the compact spare
tire with a full-size tire as soon as
you can.
Compact Spare Tire
{Warning
Driving with more than one
compact spare tire at a time could
result in loss of braking and
handling. This could lead to a crash
and you or others could be injured.
Use only one compact spare tire at
a time.
If this vehicle has a compact spare
tire, it was fully inflated when new;
however, it can lose air over time.
Check the inflation pressure regularly.
It should be 420 kPa (60 psi).
Stop as soon as possible and check
that the spare tire is correctly inflated
after being installed on the vehicle.
The compact spare tire is designed for
temporary use only. The vehicle will
perform differently with the spare tire
installed and it is recommended that
the vehicle speed be limited to
80 km/h (50 mph). To conserve the
tread of the spare tire, have the
standard tire repaired or replaced as
soon as convenient and return the
spare tire to the storage area. When using a compact spare tire, the
AWD (if equipped), ABS, and Traction
Control systems may engage until the
spare tire is recognized by the vehicle,
especially on slippery roads. Adjust
driving to reduce possible wheel slip.
Caution
When the compact spare is
installed, do not take the vehicle
through an automatic car wash
with guide rails. The compact spare
can get caught on the rails which
can damage the tire, wheel, and
other parts of the vehicle.
Do not use the compact spare on
other vehicles.
Do not mix the compact spare tire or
wheel with other wheels or tires. They
will not fit. Keep the spare tire and its
wheel together.
Caution
Tire chains will not fit the compact
spare. Using them can damage the
vehicle and the chains. Do not use
tire chains on the compact spare.

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14590481) - 2021 - CRC - 10/22/20
INDEX 423
Tires (cont'd)All-Season . . . . . . . . . . . . . . . . . . . . . . . . . 325
Buying New Tires . . . . . . . . . . . . . . . . . 341
Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 344
Changing . . . . . . . . . . . . . . . . . . . . . . . . . . 353
Compact Spare . . . . . . . . . . . . . . . . . . . . 358
Designations . . . . . . . . . . . . . . . . . . . . . . 328
Different Size . . . . . . . . . . . . . . . . . . . . . . 342
If a Tire Goes Flat . . . . . . . . . . . . . . . . 345
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . 338
Pressure . . . . . . . . . . . . . . . . . . . . . 331, 333
Pressure Light . . . . . . . . . . . . . . . . . . . . . 114
Pressure Monitor Operation . . . . . . 335
Pressure Monitor System . . . . . . . . 334
Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . 339
Sealant and Compressor Kit . . . . . 347
Sealant and Compressor Kit,
Storing . . . . . . . . . . . . . . . . . . . . . . . . . . . 352
Sidewall Labeling . . . . . . . . . . . . . . . . . 327
Terminology and Definitions . . . . 329
Uniform Tire Quality Grading . . . . 342
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . . . . . . 344
Wheel Replacement . . . . . . . . . . . . . . 344
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326
Top Tier Fuel . . . . . . . . . . . . . . . . . . . . . . . . 275 Towing
Driving Characteristics . . . . . . . . . . . 279
Equipment . . . . . . . . . . . . . . . . . . . . . . . . 286
General Information . . . . . . . . . . . . . . 279
Recreational Vehicle . . . . . . . . . . . . . . 362
Trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283
Trailer Sway Control (TSC) . . . . . . . 289
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 361
Traction Control System(TCS)/StabiliTrak Light . . . . . . . . . 113
Off Light . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Traction Control/Electronic Stability Control . . . . . . . . . . . . . . . . . . . 240
Trademarks and License Agreements . . . . . . . . . . . . . . . . . . . . . . . . 191
Trailer Sway Control (TSC) . . . . . . . . . . . . . . . 289
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283
Transmission Automatic . . . . . . . . . . . . . . . . . . . . . . . . . 232
Fluid, Automatic . . . . . . . . . . . . . . . . . . 302
Transportation Program, Courtesy . . . . . . . . . . . . . . . . . . . . . . . . . . . 398
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . 105
Turn and Lane-Change Signals . . . . 135U
Uniform Tire Quality Grading . . . . . . 342
Universal Remote System . . . . . . . . . . 128
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Programming . . . . . . . . . . . . . . . . . . . . . . 128
Updates Map Data . . . . . . . . . . . . . . . . . . . . . . . . . . 168
Software . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
USB Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Using the Navigation System . . . . . . 155
Using the System . . . . . . . . . . . . . . . . . . . 143
Using This Manual . . . . . . . . . . . . . . . . . . . . 2
V
Vehicle Alarm System . . . . . . . . . . . . . . . . . . . . . . 25
Canadian Owners . . . . . . . . . . . . . . . . . . . . 1
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
Identification Number (VIN) . . . . . 387
Load Limits . . . . . . . . . . . . . . . . . . . . . . . 220
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Personalization . . . . . . . . . . . . . . . . . . . 123
Remote Start . . . . . . . . . . . . . . . . . . . . . . . 13
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Speed Messages . . . . . . . . . . . . . . . . . . . 123
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 361
Vehicle Ahead Indicator . . . . . . . . . . . . 112

Cadillac XT5 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14590481) - 2021 - CRC - 10/22/20
424 INDEX
Vehicle CareStoring the Tire Sealant and
Compressor Kit . . . . . . . . . . . . . . . . . . 352
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 331
Vehicle Data Recording and Privacy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 403
Vehicle Positioning . . . . . . . . . . . . . . . . . 167
Vehicle Security
Steering Column Lock . . . . . . . . . . . . . 27
Ventilation, Air . . . . . . . . . . . . . . . . . . . . . 207
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Voice Recognition . . . . . . . . . . . . . . . . . . 168
W
Warning Brake System Light . . . . . . . . . . . . . . . 110
Caution and Danger . . . . . . . . . . . . . . . . . 2
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Warnings Hazard Flashers . . . . . . . . . . . . . . . . . . . 135
Washer Fluid . . . . . . . . . . . . . . . . . . . . . . . . 309
Wheels Alignment and Tire Balance . . . . . 344
Different Size . . . . . . . . . . . . . . . . . . . . . . 342
Replacement . . . . . . . . . . . . . . . . . . . . . . 344
When It Is Time for New Tires . . . . 340
Where to Put the Restraint . . . . . . . . . 72 Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Windshield Replacement . . . . . . . . . . . . . . . . . . . . . . 314
Wiper/Washer . . . . . . . . . . . . . . . . . . . . . . 95
Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218
Winter Tires . . . . . . . . . . . . . . . . . . . . . . . . . 326
Wiper Blade Replacement . . . . . . . . . . 313
Wipers Rear Washer . . . . . . . . . . . . . . . . . . . . . . . 97
Wireless Charging . . . . . . . . . . . . . . . . . . . 99