2018 BUICK LACROSSE wheel size

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-10999169) -
2018 - crc - 3/28/17
272 Vehicle Care
10. Proceed to the driver side reartire, and repeat the procedure
in 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matching process is no longer
active.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.
.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 Schedule 0311.
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 0273 andWheel
Replacement 0277.
Use this rotation pattern when
rotating the tires.
Do not include the compact
spare tire in the tire rotation.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-10999169) -
2018 - crc - 3/28/17
Vehicle Care 275
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,
brands, or types may cause
loss of control of the vehicle,
resulting in a crash or other
vehicle damage. Use the
correct size, brand, and type
of tires 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 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
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.
See Tire Pressure Monitor
System 0268. The Tire and Loading
Information label indicates the
original equipment tires on the
vehicle. See
Vehicle Load Limits
0 166.
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
(Continued)

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-10999169) -
2018 - crc - 3/28/17
278 Vehicle Care
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
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.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-10999169) -
2018 - crc - 3/28/17
Vehicle Care 291
Warning (Continued)
nuts. SeeCapacities and
Specifications 0323 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
torque specification. See
Capacities and Specifications
0 323 for the wheel nut torque
specification.
17. Tighten the wheel nuts firmly in a crisscross sequence, as
shown.
18. Lower the jack all the way and remove the jack from under the
vehicle.
19. 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, then tighten them with the
wheel wrench an additional
one-quarter 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.
Storing a Flat or Spare Tire and
Tools with a Screw in Fastener 1. Remove the extension bolt from the foam holder.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-10999169) -
2018 - crc - 3/28/17
292 Vehicle Care
2. Screw the extension bolt ontothe end of the spare tire stow
bolt by hand.
3. Replace the foam, jack and tools, and the tire in their
original storage location.
4. Remove the insulator pad and place it over the foam holder to
protect the wheel of the flat tire
from the jack.
5. Place the tire facing down over the extension bolt.
6. Turn the retainer nut clockwise to secure the tire.
7. Place the floor cover on the wheel. 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.

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-10999169) -
2018 - crc - 3/28/17
Index 359
Storage Areas (cont'd)Center Console . . . . . . . . . . . . . . . 101
Convenience Net . . . . . . . . . . . . . 102
Glove Box . . . . . . . . . . . . . . . . . . . . 100
Storage Compartments . . . . . . . . . 100
Storing the Tire Sealant and Compressor Kit . . . . . . . . . . . . . . . 287
Struts Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . 249
Stuck Vehicle . . . . . . . . . . . . . . . . . . . 166
Sun Visor Lamps . . . . . . . . . . . . . . . 149
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . 48
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Sunshade Rear Window . . . . . . . . . . . . . . . . . . . 49
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System Forward Collision
Alert (FCA) . . . . . . . . . . . . . . . . . . 208
Infotainment . . . . . . . . . . . . . 151, 338
Systems Driver Assistance . . . . . . . . . . . . . 203
T
Tachometer . . . . . . . . . . . . . . . . . . . . . 112
TaillampsBulb Replacement . . . . . . . . . . . . 251
Text Telephone (TTY) Users . . . . 328
Theft-Deterrent Systems . . . . . . . . . 43 Theft-Deterrent Systems (cont'd)
Immobilizer . . . . . . . . . . . . . . . . . . . . . 43
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . 259 All-Season . . . . . . . . . . . . . . . . . . . . 260
Buying New Tires . . . . . . . . . . . . . 274
Chains . . . . . . . . . . . . . . . . . . . . . . . . 278
Changing . . . . . . . . . . . . . . . . . . . . . 287
Compact Spare . . . . . . . . . . . . . . . 292
Designations . . . . . . . . . . . . . . . . . 263
Different Size . . . . . . . . . . . . . . . . . 275
If a Tire Goes Flat . . . . . . . . . . . . 279
Inspection . . . . . . . . . . . . . . . . . . . . 272
Pressure . . . . . . . . . . . . . . . . . 266, 267
Pressure Light . . . . . . . . . . . . . . . . 122
Pressure Monitor Operation . . 269
Pressure Monitor System . . . . . 268
Rotation . . . . . . . . . . . . . . . . . . . . . . 272
Sealant andCompressor Kit . . . . . . . . . . . . . 280
Sealant and Compressor Kit, Storing . . . . . . . . . . . . . . . . . . 287
Sidewall Labeling . . . . . . . . . . . . . 261
Terminology and Definitions . . 264
Uniform Tire Quality
Grading . . . . . . . . . . . . . . . . . . . . . 276
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . 277 Tires (cont'd)
Wheel Replacement . . . . . . . . . . 277
When It Is Time for New
Tires . . . . . . . . . . . . . . . . . . . . . . . . 273
Winter . . . . . . . . . . . . . . . . . . . . . . . . 260
Towing Driving Characteristics . . . . . . . . 221
Equipment . . . . . . . . . . . . . . . . . . . . 225
General Information . . . . . . . . . . 221
Recreational Vehicle . . . . . . . . . . 298
Trailer . . . . . . . . . . . . . . . . . . . . . . . . 224
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 297
Traction Control System (TCS)/
StabiliTrak Light . . . . . . . . . . . . . 122
Off Light . . . . . . . . . . . . . . . . . . . . . . 121
Selective Ride Control . . . . . . . . 192
Traction Control/Electronic
Stability Control . . . . . . . . . . . . . . . 190
Trailer Towing . . . . . . . . . . . . . . . . . . . . . . . . 224
Transmission Automatic . . . . . . . . . . . . . . . . . . . . . 181
Fluid, Automatic . . . . . . . . . . . . . . 238
Transportation Program, Courtesy . . . . . . . . . . . . . . . . . . . . . . 331
Trunk . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Buick LaCrosse Owner Manual (GMNA-Localizing-U.S./Canada-10999169) -
2018 - crc - 3/28/17
360 Index
Turn and Lane-ChangeSignals . . . . . . . . . . . . . . . . . . . . . . . . 147
Turn Signal Bulb Replacement . . . . . . . . . . . . 251
U
Uniform Tire Quality Grading . . . 276
Universal Remote System . . . . . . 140Operation . . . . . . . . . . . . . . . . . . . . . 142
Programming . . . . . . . . . . . . . . . . . 140
Using This Manual . . . . . . . . . . . . . . . . 2
V
Vehicle Alarm System . . . . . . . . . . . . . . . . . . 42
Canadian Owners . . . . . . . . . . . . . . . 2
Control . . . . . . . . . . . . . . . . . . . . . . . 161
Identification Number (VIN) . . . 322
Load Limits . . . . . . . . . . . . . . . . . . . 166
Messages . . . . . . . . . . . . . . . . . . . . 132
Personalization . . . . . . . . . . . . . . . 133
Remote Start . . . . . . . . . . . . . . . . . . . 34
Security . . . . . . . . . . . . . . . . . . . . . . . . 42
Speed Messages . . . . . . . . . . . . . 133
Towing . . . . . . . . . . . . . . . . . . . . . . . . 297
Vehicle Ahead Indicator . . . . . . . . 121
Vehicle Care Storing the Tire Sealantand Compressor Kit . . . . . . . . . 287 Vehicle Care (cont'd)
Tire Pressure . . . . . . . . . . . . . . . . . 266
Vehicle Data Recording and Privacy . . . . . . . . . . . . . . . . . . . . . . . . 336
Vehicle Hold Automatic . . . . . . . . . . . . . . . . . . . . . 189
Vehicle Hold (AVH) Automatic . . . . . . . . . . . . . . . . . . . . . 189
Ventilation, Air . . . . . . . . . . . . . . . . . . 157
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
W
Warning Brake System Light . . . . . . . . . . . .119
Caution and Danger . . . . . . . . . . . . . 2
Lane Departure (LDW) . . . . . . . 215
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . . . 109
Warnings
Hazard Flashers . . . . . . . . . . . . . . 146
Washer Fluid . . . . . . . . . . . . . . . . . . . 245
Wheels Alignment and Tire Balance . . 277
Different Size . . . . . . . . . . . . . . . . . 275
Replacement . . . . . . . . . . . . . . . . . 277
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . . . 273
Where to Put the Restraint . . . . . . 86
Wi-Fi . . . . . . . . . . . . . . . . . . . . . . . . . . . 341 Windows . . . . . . . . . . . . . . . . . . . . . . . . 46
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Windshield Replacement . . . . . . . . . . . . . . . . . 249
Wiper/Washer . . . . . . . . . . . . . . . . 105
Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . 165
Winter Tires . . . . . . . . . . . . . . . . . . . . 260
Wiper Blade Replacement . . . . . . 249
Wireless Charging . . . . . . . . . . . . . . 108