tire size CHEVROLET BOLT EV 2022 User Guide

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada-
15082216) - 2022 - CRC - 6/25/21
248 Vehicle Care
cycle using POWERO. 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.
2. Press POWER
Oto start the vehicle. See
Power Button 0165.
3. Make sure the Tire Pressure info page option is turned on. The info pages on
the DIC can be turned on and off
through the Options menu. See Driver
Information Center (DIC) 099.
4. Use the DIC controls on the right side of the steering wheel to scroll to the Tire
Pressure screen under the DIC info page. 5. Press and hold the thumbwheel in the
center of the DIC controls.
A message requesting acceptance of the
process may display.
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 the procedure in Step 7.
9. Proceed to the passenger side rear tire, and repeat the procedure in Step 7.
10. Proceed to the driver side rear tire, 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sensor matching process is no longer
active.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.

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada-
15082216) - 2022 - CRC - 6/25/21
250 Vehicle Care
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.
SeeTire Inspection 0248 and
Tire Rotation 0249 for additional
information.
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. GM recommends
that tires, including the spare if equipped,
be replaced after six years, regardless of
tread wear. To identify the age of a tire, use
the tire manufacture date, which is the last
four digits of the DOT Tire Identification
Number (TIN) molded into one side of the
tire sidewall. The last four digits of the TIN
indicate the tire manufactured date. The
first two digits represent the week and the
last two digits, the year. For example, the
third week of the year 2020 would have a
4-digit DOT date of 0320. Week 01 is the
first full week (Sunday through Saturday) of
each year.
Vehicle Storage
Tires age when stored normally mounted on
a parked vehicle. Park a vehicle that will be
stored for at least a month in a cool, dry,
clean area away from direct sunlight to slow
aging. This area should be free of grease,
gasoline, or other substances that can
deteriorate rubber.
Parking for an extended period can cause
flat spots on the tires that may result in
vibrations while driving. When storing a
vehicle for at least a 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 Spec number will be followed
by MS for mud and snow. See
Tire
Sidewall Labeling 0240 for additional
information.

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada-
15082216) - 2022 - CRC - 6/25/21
Vehicle Care 251
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. SeeTire Rotation0249.
{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 (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 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
0 162.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.

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada-
15082216) - 2022 - CRC - 6/25/21
252 Vehicle Care
{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 0250 and
Accessories and Modifications 0217.
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.
Quality grades can be found where
applicable on the tire sidewall between
tread shoulder and maximum section
width. For example:Treadwear 200 Traction AA Temperature A
All Passenger Car Tires Must Conform to
Federal Safety Requirements In Addition
To These Grades.
Treadwear
The treadwear grade is a comparative
rating based on the wear rate of the
tire when tested under controlled
conditions on a specified government
test course. For example, a tire graded
150 would wear one and one-half (1½)times as well on the government course
as a tire graded 100. The relative
performance of tires depends upon the
actual conditions of their use, however,
and may depart significantly from the
norm due to variations in driving habits,
service practices and differences in road
characteristics and climate.
Traction
The traction grades, from highest to
lowest, are AA, A, B, and C. Those
grades represent the tire's ability to
stop on wet pavement as measured
under controlled conditions on specified
government test surfaces of asphalt and
concrete. A tire marked C may have
poor traction performance. Warning:
The traction grade assigned to this tire
is based on straight-ahead braking
traction tests, and does not include
acceleration, cornering, hydroplaning,
or peak traction characteristics.

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada-
15082216) - 2022 - CRC - 6/25/21
254 Vehicle Care
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(Continued)
Warning (Continued)
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
The vehicle has no spare tire, no tire
changing equipment, and no place to store
a tire.
If the vehicle has self-sealing tires, see
Self-Sealing Tires0239. Tread punctures
typically will not cause tires to lose air.
However, if the vehicle does get a flat tire,
there is no spare tire, tire changing
equipment, or place to store a tire. Contact
Roadside Assistance for help.
It is unusual for a tire to blow out while
driving, especially if the tires are maintained
properly. See Tires0238. 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 dealer or
an authorized tire service center repair or
replace the flat tire as soon as possible.
If a tire goes flat, avoid further tire and
wheel damage by driving slowly to a level
place, well off the road, if possible. Turn on
the hazard warning flashers. See Hazard
Warning Flashers 0109.

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada-
15082216) - 2022 - CRC - 6/25/21
Index 313
Storage Compartments . . . . . . . . . . . . . . . . . . . 69
Storing the Tire Sealant andCompressor Kit . . . . . . . . . . . . . . . . . . . . . . . . . 260
Struts Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227
Stuck Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Summer Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Surround Vision System . . . . . . . . . . . . . . . . . 189
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
System Forward Collision Alert (FCA) . . . . . . . . . . . 192
Rear Cross Traffic Alert . . . . . . . . . . . . . . . . 192
Surround Vision . . . . . . . . . . . . . . . . . . . . . . . . 189
Systems Driver Assistance . . . . . . . . . . . . . . . . . . . . . . 187
T
Teen Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Text Telephone (TTY) Users . . . . . . . . . . . . . . 288
Theft-Deterrent Systems . . . . . . . . . . . . . . . . . . .19
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238 All-Season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Buying New Tires . . . . . . . . . . . . . . . . . . . . . . 250
Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254
Designations . . . . . . . . . . . . . . . . . . . . . . . . . . . 241 Tires (cont'd)
Different Size . . . . . . . . . . . . . . . . . . . . . . . . . . 251
If a Tire Goes Flat . . . . . . . . . . . . . . . . . . . . . 254
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248
Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
Pressure Light . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Pressure Monitor Operation . . . . . . . . . . . 245
Pressure Monitor System . . . . . . . . . . . . . . 244
Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249
Sealant and Compressor Kit . . . . . . . . . . . . 255
Sealant and Compressor Kit,
Storing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
Self-Sealing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
Sidewall Labeling . . . . . . . . . . . . . . . . . . . . . . 240
Terminology and Definitions . . . . . . . . . . . 241
Uniform Tire Quality Grading . . . . . . . . . . 252
Wheel Alignment and Tire Balance . . . . 253
Wheel Replacement . . . . . . . . . . . . . . . . . . . . 253
When It Is Time for New Tires . . . . . . . . . 250
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
Towing
General Information . . . . . . . . . . . . . . . . . . . 215
Recreational Vehicle . . . . . . . . . . . . . . . . . . . 265
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263
Traction Control System (TCS)/StabiliTrak
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Off Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 Traction Control/Electronic Stability
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
Trademarks and License Agreements . . . . . .142
Transportation Program, Courtesy . . . . . . . 290
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
Turn and Lane-Change Signals . . . . . . . . . . . 109
U
Underhood Compartment Fuse Block . . . . 233
Underhood Compartment Overview . . . . . . 220
Uniform Tire Quality Grading . . . . . . . . . . . . 252
Updates Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
USB Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Using the System . . . . . . . . . . . . . . . . . . . . . . . . . 114
Using This Manual . . . . . . . . . . . . . . . . . . . . . . . . . .2
Utility Interruption of Charging . . . . . . . . . . .214
V
Vehicle Alarm System . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Canadian Owners . . . . . . . . . . . . . . . . . . . . . . . . . 1
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Identification Number (VIN) . . . . . . . . . . . . 284
Load Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Personalization . . . . . . . . . . . . . . . . . . . . . . . . 102
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Service Soon Light . . . . . . . . . . . . . . . . . . . . . . 85

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada-
15082216) - 2022 - CRC - 6/25/21
314 Index
Vehicle (cont'd)Speed Messages . . . . . . . . . . . . . . . . . . . . . . . 102
Starting and Stopping . . . . . . . . . . . . . . . . . 166
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263
Vehicle Ahead Indicator . . . . . . . . . . . . . . . . . . . 87
Vehicle Care Storing the Tire Sealant and
Compressor Kit . . . . . . . . . . . . . . . . . . . . . . . 260
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
Vehicle Data Recording and Privacy . . . . . . 295
Vehicle Ready Light . . . . . . . . . . . . . . . . . . . . . . . 88
Ventilation, Air . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Voice Recognition . . . . . . . . . . . . . . . . . . . . . . . . . 123
Voltage Devices and Wiring . . . . . . . . . . . . . 230
W
Warning Brake System Light . . . . . . . . . . . . . . . . . . . . . 85
Caution and Danger . . . . . . . . . . . . . . . . . . . . . 2
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Warnings Hazard Flashers . . . . . . . . . . . . . . . . . . . . . . . . 109
Washer Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Wheels Alignment and Tire Balance . . . . . . . . . . . . 253
Different Size . . . . . . . . . . . . . . . . . . . . . . . . . . 251 Wheels (cont'd)
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 253
When It Is Time for New Tires . . . . . . . . . . . 250
When to Charge . . . . . . . . . . . . . . . . . . . . . . . . . 200
Where to Put the Restraint . . . . . . . . . . . . . . . 54
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Windshield Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 227
Wiper/Washer . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Winter Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
Wiper Blade Replacement . . . . . . . . . . . . . . . . 226
Wipers Rear Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Wireless Charging . . . . . . . . . . . . . . . . . . . . . . . . 76
Wiring, High Voltage Devices . . . . . . . . . . . . 230