2022 CHEVROLET BOLT EV wheel size

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada-
15082216) - 2022 - CRC - 6/25/21
48 Seats and Restraints
.Front seats, including stitching, seams or
zippers
.Seat belts
.Steering wheel, instrument panel,
overhead console, ceiling trim, or pillar
garnish trim
.Inner door seals, including speakers
Your dealer and the service manual have
information about the location of the airbag
modules and sensors, sensing and diagnostic
module, and airbag wiring along with the
proper replacement procedures.
In addition, the vehicle has a passenger
sensing system for the front outboard
passenger position, which includes sensors
that are part of the passenger seat. The
passenger sensing system may not operate
properly if the original seat trim is replaced
with non-GM covers, upholstery, or trim; or
with GM covers, upholstery, or trim
designed for a different vehicle. Any object,
such as an aftermarket seat heater or a
comfort-enhancing pad or device, installed
under or on top of the seat fabric, could
also interfere with the operation of the
passenger sensing system. This could either
prevent proper deployment of the passenger
airbag(s) or prevent the passenger sensing system from properly turning off the
passenger airbag(s). See
Passenger Sensing
System 044.
If the vehicle has rollover roof-rail airbags,
see Different Size Tires and Wheels 0251 for
additional important information.
If the vehicle must be modified because you
have a disability and have questions about
whether the modifications will affect the
vehicle's airbag system, or if you have
questions about whether the airbag system
will be affected if the vehicle is modified for
any other reason, call Customer Assistance.
See Customer Assistance Offices 0287.
Airbag System Check
The airbag system does not need regularly
scheduled maintenance or replacement.
Make sure the airbag readiness light is
working. See Airbag Readiness Light 083.
Caution
If an airbag covering is damaged, opened,
or broken, the airbag may not work
properly. Do not open or break the airbag
coverings. If there are any opened or
broken airbag coverings, have the airbag
(Continued)
Caution (Continued)
covering and/or airbag module replaced.
For the location of the airbags, see Where
Are the Airbags? 040. See your dealer
for service.
Replacing Airbag System Parts
after a Crash
{Warning
A crash can damage the airbag systems
in the vehicle. A damaged airbag system
may not properly protect you and your
passenger(s) in a crash, resulting in
serious injury or even death. To help
make sure the airbag systems are
working properly after a crash, have
them inspected and any necessary
replacements made as soon as possible.
If an airbag inflates, you will need to
replace airbag system parts. See your dealer
for service.

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada-
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216 Vehicle Care
Vehicle Care
General Information
General Information . . . . . . . . . . . . . . . . . . . 217
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . . . . . . . . . . 217
Accessories and Modifications . . . . . . . . . . 217
Vehicle Checks
Doing Your Own Service Work . . . . . . . . . 217
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218
Underhood Compartment Overview . . . 220
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . 221
Washer Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
Battery - North America . . . . . . . . . . . . . . . 224
Park Brake and P (Park) Mechanism Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
Wiper Blade Replacement . . . . . . . . . . . . . 226
Windshield Replacement . . . . . . . . . . . . . . . 227
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227
Headlamp Aiming
Front Headlamp Aiming . . . . . . . . . . . . . . . 228
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . 228
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . 229
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
Back-Up Lamps . . . . . . . . . . . . . . . . . . . . . . . . 229 License Plate Lamp . . . . . . . . . . . . . . . . . . . . 230
Electrical System
High Voltage Devices and Wiring . . . . . 230
Electrical System Overload . . . . . . . . . . . . . 231
Fuses and Circuit Breakers . . . . . . . . . . . . . 232
Underhood Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
Instrument Panel Fuse Block . . . . . . . . . . 236
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
All-Season Tires . . . . . . . . . . . . . . . . . . . . . . . . 238
Winter Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
Self-Sealing Tires . . . . . . . . . . . . . . . . . . . . . . 239
Summer Tires . . . . . . . . . . . . . . . . . . . . . . . . . 239
Tire Sidewall Labeling . . . . . . . . . . . . . . . . . 240
Tire Designations . . . . . . . . . . . . . . . . . . . . . . 241
Tire Terminology and Definitions . . . . . . 241
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . 243
Tire Pressure Monitor System . . . . . . . . . 244
Tire Pressure Monitor Operation . . . . . . 245
Tire Inspection . . . . . . . . . . . . . . . . . . . . . . . . 248
Tire Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . 249
When It Is Time for New Tires . . . . . . . . 250
Buying New Tires . . . . . . . . . . . . . . . . . . . . . 250
Different Size Tires and Wheels . . . . . . . . 251
Uniform Tire Quality Grading . . . . . . . . . . 252
Wheel Alignment and Tire Balance . . . . 253
Wheel Replacement . . . . . . . . . . . . . . . . . . . 253
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254 If a Tire Goes Flat . . . . . . . . . . . . . . . . . . . . . 254
Tire Sealant and Compressor Kit . . . . . . . 255
Storing the Tire Sealant and
Compressor Kit . . . . . . . . . . . . . . . . . . . . . . 260
Jump Starting
Jump Starting - North America . . . . . . . . 260
Towing the Vehicle
Towing the Vehicle . . . . . . . . . . . . . . . . . . . . 263
Recreational Vehicle Towing . . . . . . . . . . . 265
Appearance Care
Exterior Care . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Interior Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 270
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada-
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Vehicle Care 239
equipment all-season tires can be identified
by the last two characters of this TPC code,
which will be“MS.”
Consider installing winter tires on the
vehicle if frequent driving on snow or
ice-covered roads is expected. All-season tires
provide adequate performance for most
winter driving conditions, but they may not
offer the same level of traction or
performance as winter tires on snow or
ice-covered roads. See Winter Tires0239.
Winter Tires
This vehicle was not originally equipped
with winter tires. Winter tires are designed
for increased traction on snow and
ice-covered roads. Consider installing winter
tires on the vehicle if frequent driving on ice
or snow covered roads is expected. See your
dealer for details regarding winter tire
availability and proper tire selection. Also,
see Buying New Tires 0250.
With winter tires, there may be decreased
dry road traction, increased road noise, and
shorter tread life. After changing to winter
tires, be alert for changes in vehicle
handling and braking. If using winter tires:
.Use tires of the same brand and tread
type on all four wheel positions.
.Use only radial ply tires of the same size,
load range, and speed rating as the
original equipment tires.
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. If winter tires with a lower speed
rating are chosen, never exceed the tire's
maximum speed capability.
Self-Sealing Tires
This vehicle may have self-sealing tires.
These tires have a material inside that can
seal punctures from common road hazards,
such as nails and screws, in the tread area.
The tire may lose air pressure if the sidewall
is damaged or the tread puncture is too
large. If the Tire Pressure Monitor System
indicates the tire pressure is low, inspect the
tire for damage and inflate it to the
recommended pressure. If the tire is unable
to maintain the recommended pressure,
contact the nearest authorized GM servicing
facility immediately for inspection and repair or replacement. To locate the nearest GM
servicing facility, call GM Customer
Assistance.
Caution
Do not drive on a deflated self-sealing
tire as this could damage the tire. Make
sure the tire is inflated to the
recommended pressure or have it
immediately repaired or replaced.
When tire replacement is needed replace
with a self-sealing tire, because the vehicle
does not come with a spare tire or tire
changing equipment.
Summer Tires
High Performance Summer Tires
This vehicle may come with 215/50R17 high
performance summer tires. These tires have
a special tread and compound that are
optimized for maximum dry and wet road
performance. This special tread and
compound will have decreased performance
in cold climates, and on ice and snow. It is
recommended that winter tires be installed
on the vehicle if frequent driving at

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Vehicle Care 241
(5) Tire Ply Material:The type of cord
and number of plies in the sidewall and
under the tread.
(6) Uniform Tire Quality Grading
(UTQG)
:Tire manufacturers are
required to grade tires based on three
performance factors: treadwear,
traction, and temperature resistance.
For more information, see Uniform Tire
Quality Grading 0252.
(7) Maximum Cold Inflation Load
Limit
:Maximum load that can be
carried and the maximum pressure
needed to support that load.
Tire Designations
Tire Size
The example shows a typical passenger
vehicle tire size.
Passenger (P-Metric) Tire
(1) Passenger (P-Metric) Tire:The
United States version of a metric tire
sizing system. The letter "P" as the first
character in the tire size means a
passenger vehicle tire engineered to
standards set by the U.S. Tire and Rim
Association.
(2) Tire Width
:The 3-digit number
indicates the tire section width in
millimeters from sidewall to sidewall.
(3) Aspect Ratio
:A 2-digit number that
indicates the tire height-to-width
measurements. For example, if the tire
size aspect ratio is 75, as shown in
item (3) of the illustration, it would
mean that the tire's sidewall is
75 percent as high as it is wide.
(4) Construction Code
:A letter code is
used to indicate the type of ply
construction in the tire. The letter "R"
means radial ply construction; the letter
"D" means diagonal or bias ply
construction.
(5) Rim Diameter
:Diameter of the
wheel in inches. (6) Service Description
:These
characters represent the load index and
speed rating of the tire. The load index
represents the load carrying capacity a
tire is certified to carry. The speed
rating is the maximum speed a tire is
certified to carry a load.
Tire Terminology and Definitions
Air Pressure:The amount of air inside
the tire pressing outward on each
square inch of the tire. Air pressure is
expressed in kPa (kilopascal) or psi
(pounds per square inch).
Accessory Weight
:The combined
weight of optional accessories. Some
examples of optional accessories are,
electric drive unit, power windows,
power seats, and air conditioning.
Aspect Ratio
:The relationship of a
tire's height to its width.
Belt
:A rubber coated layer of cords
that is located between the plies and
the tread. Cords may be made from
steel or other reinforcing materials.

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada-
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246 Vehicle Care
The low tire pressure warning light may
come on in cool weather when the vehicle is
first started, and then turn off as the vehicle
is driven. This could be an early indicator
that the air pressure is getting low and
needs to be inflated to the proper pressure.
A Tire and Loading Information label,
attached to your vehicle, shows the size of
the original equipment tires and the correct
inflation pressure for the tires when they
are cold. SeeVehicle Load Limits 0162, for
an example of the Tire and Loading
Information label and its location. Also see
Tire Pressure 0243.
The TPMS can warn about a low tire
pressure condition but it does not replace
normal tire maintenance. See Tire Inspection
0 248, Tire Rotation 0249 and
Tires 0238.
Caution
Tire sealant materials are not all the
same. A non-approved tire sealant could
damage the TPMS sensors. TPMS sensor
damage caused by using an incorrect tire
sealant is not covered by the vehicle
(Continued)
Caution (Continued)
warranty. Always use only the GM
approved tire sealant available through
your dealer or included in the vehicle.
Factory-installed Tire Inflator Kits use a
GM-approved liquid tire sealant. Using
non-approved tire sealants could damage the
TPMS sensors. See Tire Sealant and
Compressor Kit 0255 for information
regarding the inflator kit materials and
instructions.
TPMS Malfunction Light and Message
The TPMS will not function properly if one
or more of the TPMS sensors are missing or
inoperable. When the system detects a
malfunction, the low tire warning light
flashes for about one minute and then stays
on for the remainder of the ignition cycle
using POWER
O. A DIC warning message
also displays. The malfunction light and DIC
warning message come on at each ignition
cycle using POWER
Ountil the problem is
corrected. Some of the conditions that can
cause these to come on are:
.One of the road tires has been replaced
with the spare tire. The spare tire does
not have a TPMS sensor. The malfunction light and DIC message should go off after
the road tire is replaced and the sensor
matching process is performed
successfully. See
“TPMS Sensor Matching
Process” later in this section.
.The TPMS sensor matching process was
not done or not completed successfully
after rotating the tires. The malfunction
light and the DIC message should go off
after successfully completing the sensor
matching process. See "TPMS Sensor
Matching Process" later in this section.
.One or more TPMS sensors are missing or
damaged. The malfunction light and the
DIC message should go off when the
TPMS sensors are installed and the sensor
matching process is performed
successfully. See your dealer for service.
.Replacement tires or wheels do not match
the original equipment tires or wheels.
Tires and wheels other than those
recommended could prevent the TPMS
from functioning properly. See Buying
New Tires 0250.
.Operating electronic devices or being near
facilities using radio wave frequencies
similar to the TPMS could cause the TPMS
sensors to malfunction.

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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.

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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-
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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.