wheel size CADILLAC XT4 2020 User Guide

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
288 VEHICLE CARE
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. SeeTire Sidewall
Labeling 0274.
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. See Tire
Rotation 0286. However, if it is necessary to replace only one axle
set of worn tires, place the new
tires on the rear axle.
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.
{Warning
Tires could explode during
improper service. Attempting to
mount or dismount a tire could
cause injury or death. Only your
dealer or authorized tire service
center should mount or
dismount the tires.
{Warning
Mixing tires of different sizes,
tread patterns, or types on the
same axle may cause loss of
control of the vehicle, resulting
in a crash or other vehicle
damage. Use the same size, load
range, and type of tires as the
original tires.
{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
and cause a crash. Use only
radial-ply tires with the wheels
on the vehicle.
If the vehicle tires must be
replaced with a tire that does not
have a TPC Spec number, make

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
VEHICLE CARE 289
sure they are the same size, load
range, speed rating, and
construction (radial) as the
original tires.
Vehicles that have a tire pressure
monitoring system could give an
inaccurate low-pressure warning if
non-TPC Spec rated tires are
installed. SeeTire Pressure Monitor
System 0281.
The Tire and Loading Information
label indicates the original
equipment tires on the vehicle.
See Vehicle Load Limits 0168.
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 0287 and
Accessories and Modifications 0243.
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-
13527548) - 2020 - CRC - 9/5/19
292 VEHICLE CARE
Tire Chains
{Warning
Do not use tire chains. There is 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.
If a Tire Goes Flat
It is unusual for a tire to blow out
while driving, especially if the tires are
maintained properly. SeeTires0272.
If air goes out of a tire, it is much
more likely to leak out slowly. But if
there ever is 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
(Continued)

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
304 VEHICLE CARE
13. Lower the vehicle by turning thejack handle counterclockwise.
{Warning
Wheel nuts that are improperly or
incorrectly tightened can cause the
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 Specifications 0333 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
(Continued)
Caution (Continued)
and to the proper torque
specification. SeeCapacities and
Specifications 0333 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. When reinstalling the wheel cover or
center cap on the full-size tire, tighten
all five plastic caps hand snug with
the aid of the wheel wrench and
tighten them with the wheel wrench
an additional one-quarter of a turn.
Caution
Wheel covers will not fit on the
vehicle's compact spare. If you try
to put a wheel cover on the
compact spare, the cover or the
spare could be damaged.
Storing a Flat or Spare Tire and
Tools
{Warning
Storing a jack, a tire, or other
equipment in the passenger
compartment of the vehicle could
cause injury. In a sudden stop or
collision, loose equipment could
strike someone. Store all these in
the proper place.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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To store the flat or spare tire and
tools:1. Open the liftgate. See Liftgate
0 21.
2. Replace the jack and tools in their original storage location.
3. Lower the load floor.
4. Place the tire, lying flat, in the rear storage compartment.
5. Place the loop end of the strap through the liftgate striker.
6. Route the strap through thewheel as shown. 7. Attach the hook to the loop end
of the strap.
8. Tighten the strap.
9. Replace the cargo cover, if equipped.
10. Close the liftgate and make sure it is fully latched.
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.

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
INDEX 369
System (cont'd)Forward Collision Alert (FCA) . . . . 215
Infotainment . . . . . . . . . . . . . . . . . 147, 349
Roof Rack . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Systems Driver Assistance . . . . . . . . . . . . . . . . . 206
T
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . 111
Text Telephone (TTY) Users . . . . . . . 338
Theft-Deterrent Systems . . . . . . . . . . . . 30Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . 30
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272 All-Season . . . . . . . . . . . . . . . . . . . . . . . . . 273
Buying New Tires . . . . . . . . . . . . . . . . . 287
Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 292
Changing . . . . . . . . . . . . . . . . . . . . . . . . . . 300
Compact Spare . . . . . . . . . . . . . . . . . . . . 305
Designations . . . . . . . . . . . . . . . . . . . . . . 276
Different Size . . . . . . . . . . . . . . . . . . . . . . 289
If a Tire Goes Flat . . . . . . . . . . . . . . . . 292
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . 285
Pressure . . . . . . . . . . . . . . . . . . . . . . 279, 280
Pressure Light . . . . . . . . . . . . . . . . . . . . . 121
Pressure Monitor Operation . . . . . . 281
Pressure Monitor System . . . . . . . . 281
Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . 286 Tires (cont'd)
Sealant and Compressor Kit . . . . . 293
Sealant and Compressor Kit,
Storing . . . . . . . . . . . . . . . . . . . . . . . . . . . 300
Sidewall Labeling . . . . . . . . . . . . . . . . . 274
Terminology and Definitions . . . . 276
Uniform Tire Quality Grading . . . . 289
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . . . . . . 291
Wheel Replacement . . . . . . . . . . . . . . 291
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
Top Tier Fuel . . . . . . . . . . . . . . . . . . . . . . . . 226
Towing
Driving Characteristics . . . . . . . . . . . 230
Equipment . . . . . . . . . . . . . . . . . . . . . . . . 236
General Information . . . . . . . . . . . . . . 229
Recreational Vehicle . . . . . . . . . . . . . . 309
Trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
Trailer Sway Control (TSC) . . . . . . . 238
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309
Traction
Control System(TCS)/StabiliTrak Light . . . . . . . . . 120
Off Light . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Traction Control/Electronic Stability Control . . . . . . . . . . . . . . . . . . . 191 Trailer
Sway Control (TSC) . . . . . . . . . . . . . . . 238
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
Transmission Automatic . . . . . . . . . . . . . . . . . . . . . . . . . 182
Fluid, Automatic . . . . . . . . . . . . . . . . . . 250
Transportation Program,
Courtesy . . . . . . . . . . . . . . . . . . . . . . . . . . . 342
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . 111
Turn and Lane-Change Signals . . . . 143
U
Umbrella Storage . . . . . . . . . . . . . . . . . . . . 95
Uniform Tire Quality Grading . . . . . . 289
Universal Remote System . . . . . . . . . . 136 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 138
Programming . . . . . . . . . . . . . . . . . . . . . . 136
Using This Manual . . . . . . . . . . . . . . . . . . . . 2
V
Vehicle Alarm System . . . . . . . . . . . . . . . . . . . . . . . 29
Canadian Owners . . . . . . . . . . . . . . . . . . . . 2
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Identification Number (VIN) . . . . . 332
Load Limits . . . . . . . . . . . . . . . . . . . . . . . 168
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Personalization . . . . . . . . . . . . . . . . . . . 131

Cadillac XT4 Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13527548) - 2020 - CRC - 9/5/19
370 INDEX
Vehicle (cont'd)Remote Start . . . . . . . . . . . . . . . . . . . . . . . . 15
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Speed Messages . . . . . . . . . . . . . . . . . . . 131
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 309
Vehicle Ahead Indicator . . . . . . . . . . . . 119
Vehicle Care Storing the Tire Sealant andCompressor Kit . . . . . . . . . . . . . . . . . . 300
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 279
Vehicle Data Recording and Privacy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 347
Ventilation, Air . . . . . . . . . . . . . . . . . . . . . 153
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
W
Warning Brake System Light . . . . . . . . . . . . . . . 117
Caution and Danger . . . . . . . . . . . . . . . . . 3
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Warnings Hazard Flashers . . . . . . . . . . . . . . . . . . . 143
Washer Fluid . . . . . . . . . . . . . . . . . . . . . . . . 256
Wheels
Alignment and Tire Balance . . . . . 291
Different Size . . . . . . . . . . . . . . . . . . . . . . 289
Replacement . . . . . . . . . . . . . . . . . . . . . . 291 When It Is Time for New Tires . . . . 287
Where to Put the Restraint . . . . . . . . . 77
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Windshield Replacement . . . . . . . . . . . . . . . . . . . . . . 262
Wiper/Washer . . . . . . . . . . . . . . . . . . . . . 100
Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
Winter Tires . . . . . . . . . . . . . . . . . . . . . . . . . 273
Wiper Blade Replacement . . . . . . . . . . 261
Wipers Rear Washer . . . . . . . . . . . . . . . . . . . . . . 102
Wireless Charging . . . . . . . . . . . . . . . . . . 104