wheel alignment CHEVROLET BOLT EV 2021 Owner's Manual

Chevrolet Bolt EV Owner Manual (GMNA-Localizing-U.S./Canada-
14637856) - 2021 - CRC - 10/2/20
196 Vehicle Care
Vehicle Care
General Information
General Information . . . . . . . . . . . . . . . . . . . 197
California Proposition 65 Warning . . . . . 197
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . . . . . . . . . . 197
Accessories and Modifications . . . . . . . . . 197
Vehicle Checks
Doing Your Own Service Work . . . . . . . . 198
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Underhood Compartment Overview . . . 200
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . 201
Washer Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Brake Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Battery - North America . . . . . . . . . . . . . . . 204
Park Brake and P (Park) Mechanism Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205
Wiper Blade Replacement . . . . . . . . . . . . . 206
Windshield Replacement . . . . . . . . . . . . . . 207
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Headlamp Aiming
Front Headlamp Aiming . . . . . . . . . . . . . . . 208
Bulb Replacement
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . 208
Halogen Bulbs . . . . . . . . . . . . . . . . . . . . . . . . 209 High Intensity Discharge (HID)
Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . 209
Taillamps, Turn Signal, Stoplamps, and Back-Up Lamps . . . . . . . . . . . . . . . . . . . . . . 209
License Plate Lamp . . . . . . . . . . . . . . . . . . . . 209
Electrical System
High Voltage Devices and Wiring . . . . . . 210
Electrical System Overload . . . . . . . . . . . . . 210
Fuses and Circuit Breakers . . . . . . . . . . . . . 211
Underhood Compartment Fuse Block . . . 211
Instrument Panel Fuse Block . . . . . . . . . . . 214
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
All-Season Tires . . . . . . . . . . . . . . . . . . . . . . . . 216
Winter Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Self-Sealing Tires . . . . . . . . . . . . . . . . . . . . . . . 217
Tire Sidewall Labeling . . . . . . . . . . . . . . . . . . 217
Tire Designations . . . . . . . . . . . . . . . . . . . . . . 218
Tire Terminology and Definitions . . . . . . 219
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
Tire Pressure Monitor System . . . . . . . . . 222
Tire Pressure Monitor Operation . . . . . . . 223
Tire Inspection . . . . . . . . . . . . . . . . . . . . . . . . 226
Tire Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . 226
When It Is Time for New Tires . . . . . . . . 227
Buying New Tires . . . . . . . . . . . . . . . . . . . . . 228
Different Size Tires and Wheels . . . . . . . 229
Uniform Tire Quality Grading . . . . . . . . . 229 Wheel Alignment and Tire Balance . . . . 231
Wheel Replacement . . . . . . . . . . . . . . . . . . . . 231
Tire Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
If a Tire Goes Flat . . . . . . . . . . . . . . . . . . . . . 232
Tire Sealant and Compressor Kit . . . . . . . 232
Storing the Tire Sealant and
Compressor Kit . . . . . . . . . . . . . . . . . . . . . . 238
Jump Starting
Jump Starting - North America . . . . . . . . 238
Towing the Vehicle
Towing the Vehicle . . . . . . . . . . . . . . . . . . . 240
Recreational Vehicle Towing . . . . . . . . . . . 242
Appearance Care
Exterior Care . . . . . . . . . . . . . . . . . . . . . . . . . . 244
Interior Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 247
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250

Chevrolet Bolt EV Owner Manual (GMNA-Localizing-U.S./Canada-
14637856) - 2021 - CRC - 10/2/20
226 Vehicle Care
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.
Tire Rotation
Tires should be rotated every 12 000 km
(7,500 mi). See Maintenance Schedule
0 253.
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 0227
and
Wheel Replacement 0231.

Chevrolet Bolt EV Owner Manual (GMNA-Localizing-U.S./Canada-
14637856) - 2021 - CRC - 10/2/20
Vehicle Care 231
Wheel Alignment and Tire
Balance
The tires and wheels were aligned and
balanced at the factory to provide the
longest tire life and best overall
performance. Adjustments to wheel
alignment and tire balancing are not
necessary on a regular basis. Consider an
alignment check if there is unusual tire wear
or the vehicle is significantly pulling to one
side or the other. Some slight pull to the
left or right, depending on the crown of the
road and/or other road surface variations
such as troughs or ruts, is normal. If the
vehicle is vibrating when driving on a
smooth road, the tires and wheels may
need to be rebalanced. See your dealer for
proper diagnosis.
Wheel Replacement
Replace any wheel that is bent, cracked,
or badly rusted or corroded. If wheel nuts
keep coming loose, the wheel, wheel bolts,
and wheel nuts should be replaced. If the
wheel leaks air, replace it. 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
(Continued)

Chevrolet Bolt EV Owner Manual (GMNA-Localizing-U.S./Canada-
14637856) - 2021 - CRC - 10/2/20
Service and Maintenance 257
Tires
Tires need to be properly inflated, rotated,
and balanced. Maintaining the tires can save
money and reduce the risk of tire failure.
.Signs that the tires need to be replaced
include three or more visible treadwear
indicators; cord or fabric showing through
the rubber; cracks or cuts in the tread or
sidewall; or a bulge or split in the tire.
.Trained dealer technicians can inspect and
recommend the right tires. Your dealer
can also provide tire/wheel balancing
services to ensure smooth vehicle
operation at all speeds. Your dealer sells
and services name brand tires.Vehicle Care
To help keep the vehicle looking like new,
vehicle care products are available from your
dealer. For information on how to clean and
protect the vehicle’s interior and exterior,
see
Interior Care 0247 and
Exterior Care 0244.
Wheel Alignment
Wheel alignment is critical for ensuring that
the tires deliver optimal wear and
performance.
.Signs that the alignment may need to be
adjusted include pulling, improper vehicle
handling, or unusual tire wear.
.Your dealer has the required equipment
to ensure proper wheel alignment. Windshield
For safety, appearance, and the best
viewing, keep the windshield clean and
clear.
.Signs of damage include scratches, cracks,
and chips.
.Trained dealer technicians can inspect the
windshield and recommend proper
replacement if needed.
Wiper Blades
Wiper blades need to be cleaned and kept in
good condition to provide a clear view.
.Signs of wear include streaking, skipping
across the windshield, and worn or split
rubber.
.Trained dealer technicians can check the
wiper blades and replace them when
needed.

Chevrolet Bolt EV Owner Manual (GMNA-Localizing-U.S./Canada-
14637856) - 2021 - CRC - 10/2/20
290 Index
Storage Compartments . . . . . . . . . . . . . . . . . . . 69
Storing the Tire Sealant andCompressor Kit . . . . . . . . . . . . . . . . . . . . . . . . . 238
Struts Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Stuck Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
System Forward Collision Alert (FCA) . . . . . . . . . . . 174
Systems
Driver Assistance . . . . . . . . . . . . . . . . . . . . . . 169
T
TaillampsBulb Replacement . . . . . . . . . . . . . . . . . . . . . . 209
Teen Driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Text Telephone (TTY) Users . . . . . . . . . . . . . . 265
Theft-Deterrent Systems . . . . . . . . . . . . . . . . . . .19
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
All-Season . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Buying New Tires . . . . . . . . . . . . . . . . . . . . . . 228
Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Designations . . . . . . . . . . . . . . . . . . . . . . . . . . . 218
Different Size . . . . . . . . . . . . . . . . . . . . . . . . . . 229
If a Tire Goes Flat . . . . . . . . . . . . . . . . . . . . . 232 Tires (cont'd)
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
Pressure Light . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Pressure Monitor Operation . . . . . . . . . . . 223
Pressure Monitor System . . . . . . . . . . . . . . 222
Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
Sealant and Compressor Kit . . . . . . . . . . . . 232
Sealant and Compressor Kit,
Storing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Self-Sealing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Sidewall Labeling . . . . . . . . . . . . . . . . . . . . . . . 217
Terminology and Definitions . . . . . . . . . . . 219
Uniform Tire Quality Grading . . . . . . . . . . 229
Wheel Alignment and Tire Balance . . . . 231
Wheel Replacement . . . . . . . . . . . . . . . . . . . . 231
When It Is Time for New Tires . . . . . . . . . 227
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Towing General Information . . . . . . . . . . . . . . . . . . . 194
Recreational Vehicle . . . . . . . . . . . . . . . . . . . 242
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240
Traction Control System (TCS)/StabiliTrakLight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Off Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Traction Control/Electronic Stability Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166 Trademarks and License Agreements . . . . . .134
Transportation Program, Courtesy . . . . . . . 267
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Turn and Lane-Change Signals . . . . . . . . . . . .110
Turn Signal
Bulb Replacement . . . . . . . . . . . . . . . . . . . . . . 209
U
Underhood Compartment Fuse Block . . . . . 211
Underhood Compartment Overview . . . . . . 200
Uniform Tire Quality Grading . . . . . . . . . . . . 229
UpdatesSoftware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
USB Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Using This Manual . . . . . . . . . . . . . . . . . . . . . . . . . .2
Utility Interruption of Charging . . . . . . . . . . 194
V
Vehicle Alarm System . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Canadian Owners . . . . . . . . . . . . . . . . . . . . . . . . . 1
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Identification Number (VIN) . . . . . . . . . . . . 261
Load Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Personalization . . . . . . . . . . . . . . . . . . . . . . . . 101
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Service Soon Light . . . . . . . . . . . . . . . . . . . . . . 85
Speed Messages . . . . . . . . . . . . . . . . . . . . . . . 101

Chevrolet Bolt EV Owner Manual (GMNA-Localizing-U.S./Canada-
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Index 291
Vehicle (cont'd)Starting and Stopping . . . . . . . . . . . . . . . . . . 157
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240
Vehicle Ahead Indicator . . . . . . . . . . . . . . . . . . . 87
Vehicle Care Storing the Tire Sealant andCompressor Kit . . . . . . . . . . . . . . . . . . . . . . . 238
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
Vehicle Data Recording and Privacy . . . . . . 272
Vehicle Ready Light . . . . . . . . . . . . . . . . . . . . . . . 89
Ventilation, Air . . . . . . . . . . . . . . . . . . . . . . . . . . .143
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Voltage Devices and Wiring . . . . . . . . . . . . . 210
W
Warning Brake System Light . . . . . . . . . . . . . . . . . . . . . 85
Caution and Danger . . . . . . . . . . . . . . . . . . . . . 2
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Warnings Hazard Flashers . . . . . . . . . . . . . . . . . . . . . . . . 110
Washer Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Wheels Alignment and Tire Balance . . . . . . . . . . . . 231
Different Size . . . . . . . . . . . . . . . . . . . . . . . . . . 229
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
When It Is Time for New Tires . . . . . . . . . . . 227 When to Charge . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Where to Put the Restraint . . . . . . . . . . . . . . . 54
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Windshield Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Wiper/Washer . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
Winter Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Wiper Blade Replacement . . . . . . . . . . . . . . . . 206
Wipers Rear Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Wireless Charging . . . . . . . . . . . . . . . . . . . . . . . . .77
Wiring, High Voltage Devices . . . . . . . . . . . . 210