2023 CHEVROLET BOLT EV wheel size

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada-
16404388) - 2023 - CRC - 3/7/22
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 0247 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 0279.
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-
16404388) - 2023 - CRC - 3/7/22
212 Vehicle Care
Vehicle Care
General Information
General Information . . . . . . . . . . . . . . . . . . . 213
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . . . . . . . . . . 213
Accessories and Modifications . . . . . . . . . 213
Vehicle Checks
Doing Your Own Service Work . . . . . . . . . 213
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Underhood Compartment Overview . . . 216
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . 217
Washer Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 218
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
Battery - North America . . . . . . . . . . . . . . . 220
Park Brake and P (Park) Mechanism Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Wiper Blade Replacement . . . . . . . . . . . . . 222
Windshield Replacement . . . . . . . . . . . . . . . 223
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
Headlamp Aiming
Front Headlamp Aiming . . . . . . . . . . . . . . . 225
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . 225
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . 225
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
Back-Up Lamps . . . . . . . . . . . . . . . . . . . . . . . . 225 License Plate Lamp . . . . . . . . . . . . . . . . . . . . 226
Electrical System
High Voltage Devices and Wiring . . . . . . 227
Electrical System Overload . . . . . . . . . . . . . 227
Fuses and Circuit Breakers . . . . . . . . . . . . . 229
Underhood Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
Instrument Panel Fuse Block . . . . . . . . . . . 232
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234
All-Season Tires . . . . . . . . . . . . . . . . . . . . . . . . 235
Winter Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Self-Sealing Tires . . . . . . . . . . . . . . . . . . . . . . 235
Tire Sidewall Labeling . . . . . . . . . . . . . . . . . 236
Tire Designations . . . . . . . . . . . . . . . . . . . . . . 236
Tire Terminology and Definitions . . . . . . 237
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . 239
Tire Pressure Monitor System . . . . . . . . . 240
Tire Pressure Monitor Operation . . . . . . . 241
Tire Inspection . . . . . . . . . . . . . . . . . . . . . . . . 244
Tire Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . 244
When It Is Time for New Tires . . . . . . . . 245
Buying New Tires . . . . . . . . . . . . . . . . . . . . . 246
Different Size Tires and Wheels . . . . . . . 247
Uniform Tire Quality Grading . . . . . . . . . . 247
Wheel Alignment and Tire Balance . . . . 248
Wheel Replacement . . . . . . . . . . . . . . . . . . . 248
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249
If a Tire Goes Flat . . . . . . . . . . . . . . . . . . . . . 249 Tire Sealant and Compressor Kit . . . . . . 250
Storing the Tire Sealant and
Compressor Kit . . . . . . . . . . . . . . . . . . . . . . 255
Jump Starting
Jump Starting - North America . . . . . . . . 256
Towing the Vehicle
Transporting a Disabled Vehicle . . . . . . . 258
Recreational Vehicle Towing . . . . . . . . . . 260
Appearance Care
Exterior Care . . . . . . . . . . . . . . . . . . . . . . . . . . 262
Interior Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . 268

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada-
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Vehicle Care 235
Warning (Continued)
.Do not spin the tires in excess of
56 km/h (35 mph) on slippery
surfaces such as snow, mud, ice,
etc. Excessive spinning may cause
the tires to explode.
All-Season Tires
This vehicle may come with all-season tires.
These tires are designed to provide good
overall performance on most road surfaces
and weather conditions. Original equipment
tires designed to GM's specific tire
performance criteria have a TPC specification
code molded onto the sidewall. Original
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 Tires0235.
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 0246.
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.

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada-
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Vehicle Care 237
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).
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.
Bead
:The tire bead contains steel
wires wrapped by steel cords that hold
the tire onto the rim.
Bias Ply Tire
:A pneumatic tire in which
the plies are laid at alternate angles
less than 90 degrees to the centerline
of the tread.
Cold Tire Pressure
:The amount of air
pressure in a tire, measured in kPa
(kilopascal) or psi (pounds per square
inch) before a tire has built up heat
from driving. See Tire Pressure0239.
DOT Markings
:A code molded into the
sidewall of a tire signifying that the tire
is in compliance with the U.S.
Department of Transportation (DOT)
Motor Vehicle Safety Standards. The
DOT code includes the Tire Identification
Number (TIN), an alphanumeric
designator which can also identify the
tire manufacturer, production plant,
brand, and date of production.

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada-
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240 Vehicle Care
Remove the valve cap from the tire
valve stem. Press the tire gauge firmly
onto the valve to get a pressure
measurement. If the cold tire inflation
pressure matches the recommended
pressure on the Tire and Loading
Information label, no further adjustment
is necessary. If the inflation pressure is
low, add air until the recommended
pressure is reached. If the inflation
pressure is high, press on the metal
stem in the center of the tire valve to
release air.
Recheck the tire pressure with the tire
gauge.
Put the valve caps back on the valve
stems to keep out dirt and moisture.
Use only valve caps designed for the
vehicle by GM. TPMS sensors could be
damaged and would not be covered by
the vehicle warranty.
Tire Pressure Monitor System
The Tire Pressure Monitor System (TPMS)
uses radio and sensor technology to check
tire pressure levels. The TPMS sensorsmonitor the air pressure in your tires and
transmit tire pressure readings to a receiver
located in the vehicle.
Each tire, including the spare (if provided),
should be checked monthly when cold and
inflated to the inflation pressure
recommended by the vehicle manufacturer
on the vehicle placard or tire inflation
pressure label. (If your vehicle has tires of a
different size than the size indicated on the
vehicle placard or tire inflation pressure
label, you should determine the proper tire
inflation pressure for those tires.)
As an added safety feature, your vehicle has
been equipped with a tire pressure
monitoring system (TPMS) that illuminates a
low tire pressure telltale when one or more
of your tires is significantly under-inflated.
Accordingly, when the low tire pressure
telltale illuminates, you should stop and
check your tires as soon as possible, and
inflate them to the proper pressure. Driving
on a significantly under-inflated tire causes
the tire to overheat and can lead to tire
failure. Under-inflation also reduces energy
efficiency and tire tread life, and may affect
the vehicle's handling and stopping ability.
Please note that the TPMS is not a
substitute for proper tire maintenance, and
it is the driver's responsibility to maintain
correct tire pressure, even if under-inflation
has not reached the level to trigger
illumination of the TPMS low tire pressure
telltale.
Your vehicle has also been equipped with a
TPMS malfunction indicator to indicate when
the system is not operating properly. The
TPMS malfunction indicator is combined
with the low tire pressure telltale. When the
system detects a malfunction, the telltale
will flash for approximately one minute and
then remain continuously illuminated. This
sequence will continue upon subsequent
vehicle start-ups as long as the malfunction
exists.
When the malfunction indicator is
illuminated, the system may not be able to
detect or signal low tire pressure as
intended. TPMS malfunctions may occur for
a variety of reasons, including the
installation of replacement or alternate tires
or wheels on the vehicle that prevent the
TPMS from functioning properly. Always
check the TPMS malfunction telltale after
replacing one or more tires or wheels on

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada-
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Vehicle Care 241
your vehicle to ensure that the replacement
or alternate tires and wheels allow the
TPMS to continue to function properly.
SeeTire Pressure Monitor Operation 0241.
See Radio Frequency Statement 0286.
Tire Pressure Monitor Operation
This vehicle may have a Tire Pressure
Monitor System (TPMS). The TPMS is
designed to warn the driver when a low tire
pressure condition exists. TPMS sensors are
mounted onto each tire and wheel
assembly, excluding the spare tire and
wheel assembly. The TPMS sensors monitor
the air pressure in the tires and transmits
the tire pressure readings to a receiver
located in the vehicle.
When a low tire pressure condition is
detected, the TPMS illuminates the low tire
pressure warning light located on the
instrument cluster. If the warning light
comes on, stop as soon as possible and inflate the tires to the recommended
pressure shown on the Tire and Loading
Information label. See
Vehicle Load Limits
0 158.
A message to check the pressure in a
specific tire displays in the Driver
Information Center (DIC). The low tire
pressure warning light and the DIC warning
message come on each time the vehicle is
started, until the tires are inflated to the
correct inflation pressure. Using the DIC, tire
pressure levels can be viewed. For additional
information and details about the DIC
operation and displays see Driver
Information Center (DIC) 099.
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. See Vehicle Load Limits 0158, for
an example of the Tire and Loading
Information label and its location. Also see
Tire Pressure 0239. The TPMS can warn about a low tire
pressure condition but it does not replace
normal tire maintenance. See
Tire Inspection
0 244, Tire Rotation 0244, and Tires0234.
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
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 0250 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 until the vehicle is turned off. A DIC

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada-
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244 Vehicle Care
10. Proceed to the driver side rear tire, andrepeat 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 according to the
interval listed in the Maintenance
Schedule. See Maintenance Schedule
0 271.
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 0245
and Wheel Replacement 0248.
Use this rotation pattern when rotating
the tires.
Adjust the front and rear tires to the
recommended inflation pressure on
the Tire and Loading Information label
after the tires have been rotated.
See Tire Pressure 0239 and
Vehicle Load Limits 0158.
Reset the Tire Pressure Monitor System.
See Tire Pressure Monitor Operation
0 241.
Check that all wheel nuts are properly
tightened. See “Wheel Nut Torque”
under Capacities and Specifications
0 277.

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada-
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246 Vehicle Care
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. SeeTire
Sidewall Labeling 0236 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 Rotation0244.
{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.