traction control CHEVROLET BOLT EV 2017 Owner's Guide

Chevrolet Bolt EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
10122739) - 2017 - CRC - 10/3/16
Vehicle Care 285
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
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 0283 and
Accessories and Modifications
0 250.
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

Chevrolet Bolt EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
10122739) - 2017 - CRC - 10/3/16
286 Vehicle Care
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.
Temperature
The temperature grades are A
(the highest), B, and C,
representing the tire's resistanceto the generation of heat and its
ability to dissipate heat when
tested under controlled
conditions on a specified indoor
laboratory test wheel. Sustained
high temperature can cause the
material of the tire to degenerate
and reduce tire life, and
excessive temperature can lead
to sudden tire failure. The grade
C corresponds to a level of
performance which all
passenger car tires must meet
under the Federal Motor Safety
Standard No. 109. Grades B and
A represent higher levels of
performance on the laboratory
test wheel than the minimum
required by law. Warning: The
temperature grade for this tire is
established for a tire that is
properly inflated and not
overloaded. Excessive speed,
underinflation, or excessive
loading, either separately or in
combination, can cause heat
buildup and possible tire failure.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.

Chevrolet Bolt EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
10122739) - 2017 - CRC - 10/3/16
Vehicle Care 287
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.

Chevrolet Bolt EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
10122739) - 2017 - CRC - 10/3/16
352 Index
Charging Status Screens . . . . . . . 236
Charging System Light . . . . . . . . . 118
Child RestraintsInfants and Young Children . . . . . 82
Lower Anchors and Tethersfor Children . . . . . . . . . . . . . . . . . . . 87
Older Children . . . . . . . . . . . . . . . . . . 81
Securing . . . . . . . . . . . . . . . . . . . . 95, 97
Systems . . . . . . . . . . . . . . . . . . . . . . . . 85
Cleaning Exterior Care . . . . . . . . . . . . . . . . . 301
Interior Care . . . . . . . . . . . . . . . . . . 305
Climate Control Systems Automatic . . . . . . . . . . . . . . . . . . . . . 184
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Cluster, Instrument . . . . . . . . . . . . . 111
Collision Damage Repair . . . . . . . 333
Compartment Underhood . . . . . . . . . . . . . . . . . . . 253
Compartments Storage . . . . . . . . . . . . . . . . . . . . . . . 100
Compass . . . . . . . . . . . . . . . . . . . . . . . 108 Messages . . . . . . . . . . . . . . . . . . . . 136
Compressor Kit, Tire Sealant . . . 289
Connections OnStar
®. . . . . . . . . . . . . . . . . . . . . . 342 Control
Traction and Electronic
Stability . . . . . . . . . . . . . . . . . . . . . 213
Control of a Vehicle . . . . . . . . . . . . . 193
Convex Mirrors . . . . . . . . . . . . . . . . . . 48
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . 184
Cooling System . . . . . . . . . . . . . . . . . 254
Courtesy Lamps . . . . . . . . . . . . . . . . 152
Courtesy Transportation Program . . . . . . . . . . . . . . . . . . . . . . . 332
Cover
Cargo . . . . . . . . . . . . . . . . . . . . . . . . . 101
Cruise Control . . . . . . . . . . . . . . . . . . 215 Light . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Messages . . . . . . . . . . . . . . . . . . . . 136
Cupholders . . . . . . . . . . . . . . . . . . . . . 100
Customer Assistance . . . . . . . . . . . 326
Offices . . . . . . . . . . . . . . . . . . . . . . . . 325
Text Telephone (TTY)Users . . . . . . . . . . . . . . . . . . . . . . . 326
Customer Information
Service PublicationsOrdering Information . . . . . . . . 335
Customer Satisfaction Procedure . . . . . . . . . . . . . . . . . . . . . 323
D
Damage Repair, Collision . . . . . . . 333
Danger, Warning, and Caution . . . . 3
Data CollectionOnStar . . . . . . . . . . . . . . . . . . . . . . . 339
Data Recorders, Event . . . . . . . . . 338
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . 150
Defensive Driving . . . . . . . . . . . . . . . 192
Delayed Charging Override . . . . . 235
Delayed Locking . . . . . . . . . . . . . . . . . 42
Devices Auxiliary . . . . . . . . . . . . . . . . . . . . . . 170
Diagnostics
OnStar
®. . . . . . . . . . . . . . . . . . . . . . 344
Distracted Driving . . . . . . . . . . . . . . . 192
Dome Lamps . . . . . . . . . . . . . . . . . . . 152
Door Ajar Light . . . . . . . . . . . . . . . . . . . . . 123
Ajar Messages . . . . . . . . . . . . . . . 136
Delayed Locking . . . . . . . . . . . . . . . . 42
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Power Locks . . . . . . . . . . . . . . . . . . . . 42
Drive Unit
Electric . . . . . . . . . . . . . . . . . . . . . . . 206
Driver Teen . . . . . . . . . . . . . . . . . . . . . . . . . . 178
Driver Assistance Systems . . . . . 218

Chevrolet Bolt EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
10122739) - 2017 - CRC - 10/3/16
Index 355
Lap-Shoulder Belt . . . . . . . . . . . . . . . 64
LATCH SystemReplacing Parts after aCrash . . . . . . . . . . . . . . . . . . . . . . . . . 95
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . . 87
LED Lighting . . . . . . . . . . . . . . . . . . . . 262
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Light
Ready Indicator . . . . . . . . . . . . . . . 122
Vehicle Ready . . . . . . . . . . . . . . . . 122
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . 153
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
Illumination Control . . . . . . . . . . . 152
LED . . . . . . . . . . . . . . . . . . . . . . . . . . 262
Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 Airbag Readiness . . . . . . . . . . . . . .117
Antilock Brake System(ABS) Warning . . . . . . . . . . . . . . 120
Brake System Warning . . . . . . . .118
Charging System . . . . . . . . . . . . . .118
Cruise Control . . . . . . . . . . . . . . . . 123
Door Ajar . . . . . . . . . . . . . . . . . . . . . 123
Electric Parking Brake . . . . . . . . .119
Flash-to-Pass . . . . . . . . . . . . . . . . . 150
High-Beam On . . . . . . . . . . . . . . . . 123
High/Low Beam Changer . . . . . 150 Lights (cont'd)
Safety Belt Reminders . . . . . . . . .116
Security . . . . . . . . . . . . . . . . . . . . . . 122
Service Electric Parking
Brake . . . . . . . . . . . . . . . . . . . . . . . .119
Service Vehicle Soon . . . . . . . . . .118
Sport Mode . . . . . . . . . . . . . . . . . . . 120
StabiliTrak
®OFF . . . . . . . . . . . . . 121
Tire Pressure . . . . . . . . . . . . . . . . . 122
Traction Control System
(TCS)/StabiliTrak
®. . . . . . . . . . 121
Traction Off . . . . . . . . . . . . . . . . . . . 121
Locks Automatic Door . . . . . . . . . . . . . . . . . 42
Delayed Locking . . . . . . . . . . . . . . . . 42
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Lockout Protection . . . . . . . . . . . . . . 43
Power Door . . . . . . . . . . . . . . . . . . . . . 42
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Loss of Control . . . . . . . . . . . . . . . . . 194
Lower Anchors and Tethers for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . . . 87
M
MaintenanceAir Conditioning RegularOperation . . . . . . . . . . . . . . . . . . . 190
Records . . . . . . . . . . . . . . . . . . . . . . 318 Maintenance and Care
Additional . . . . . . . . . . . . . . . . . . . . . 314
Maintenance Schedule . . . . . . . . . 311 Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . 316
Messages Airbag System . . . . . . . . . . . . . . . . 140
Brake System . . . . . . . . . . . . . . . . 136
Compass . . . . . . . . . . . . . . . . . . . . . 136
Door Ajar . . . . . . . . . . . . . . . . . . . . . 136
Electric Drive Unit . . . . . . . . . . . . 137
Key and Lock . . . . . . . . . . . . . . . . . 137
Lamp . . . . . . . . . . . . . . . . . . . . . . . . . 138
Object Detection System . . . . . 138
Propulsion Power . . . . . . . . . . . . . 139
Ride Control System . . . . . . . . . . 140
Security . . . . . . . . . . . . . . . . . . . . . . 140
Service Vehicle . . . . . . . . . . . . . . . 140
Starting the Vehicle . . . . . . . . . . . 141
Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 135
Vehicle Reminder . . . . . . . . . . . . . 141
Mirror Rear Camera . . . . . . . . . . . . . . . . . . . 50
Mirrors
Automatic DimmingRearview . . . . . . . . . . . . . . . . . . . . . . 49
Convex . . . . . . . . . . . . . . . . . . . . . . . . . 48

Chevrolet Bolt EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
10122739) - 2017 - CRC - 10/3/16
Index 359
T
TaillampsBulb Replacement . . . . . . . . . . . . 262
Teen Driver . . . . . . . . . . . . . . . . . . . . . 178
Text Telephone (TTY) Users . . . . 326
Theft-Deterrent Systems . . . . . . . . . 47 Immobilizer . . . . . . . . . . . . . . . . . . . . . 47
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270 All-Season . . . . . . . . . . . . . . . . . . . . 270
Buying New Tires . . . . . . . . . . . . . 283
Chains . . . . . . . . . . . . . . . . . . . . . . . . 287
Designations . . . . . . . . . . . . . . . . . 273
Different Size . . . . . . . . . . . . . . . . . 284
If a Tire Goes Flat . . . . . . . . . . . . 288
Inspection . . . . . . . . . . . . . . . . . . . . 281
Messages . . . . . . . . . . . . . . . . . . . . 141
Pressure . . . . . . . . . . . . . . . . . . . . . . 276
Pressure Light . . . . . . . . . . . . . . . . 122
Pressure Monitor Operation . . 278
Pressure Monitor System . . . . . 277
Rotation . . . . . . . . . . . . . . . . . . . . . . 281
Sealant andCompressor Kit . . . . . . . . . . . . . 289
Sealant and Compressor Kit, Storing . . . . . . . . . . . . . . . . . . 295
Self-Sealing . . . . . . . . . . . . . . . . . . 271
Sidewall Labeling . . . . . . . . . . . . . 272 Tires (cont'd)
Terminology and Definitions . . 273
Uniform Tire Quality
Grading . . . . . . . . . . . . . . . . . . . . . 285
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . 286
Wheel Replacement . . . . . . . . . . 286
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 282
Winter . . . . . . . . . . . . . . . . . . . . . . . . 271
Towing General Information . . . . . . . . . . 246
Recreational Vehicle . . . . . . . . . . 299
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 299
Traction Control System (TCS)/StabiliTrak
®Light . . . . . . . . . . . . 121
Off Light . . . . . . . . . . . . . . . . . . . . . . 121
Traction Control/Electronic Stability Control . . . . . . . . . . . . . . . 213
Trademarks and License Agreements . . . . . . . . . . . . . . . . . . . 182
Transportation Program,
Courtesy . . . . . . . . . . . . . . . . . . . . . . 332
Trip Odometer . . . . . . . . . . . . . . . . . . 114
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . . . . 151 Turn Signal
Bulb Replacement . . . . . . . . . . . . 262
U
Underhood Compartment
Fuse Block . . . . . . . . . . . . . . . . . . . . 264
Underhood Compartment
Overview . . . . . . . . . . . . . . . . . . . . . . 253
Uniform Tire Quality Grading . . . 285
Updates Software . . . . . . . . . . . . . . . . . . . . . . 159
USB Port . . . . . . . . . . . . . . . . . . . . . . . 164
Using This Manual . . . . . . . . . . . . . . . . 2
Utility Interruption of
Charging . . . . . . . . . . . . . . . . . . . . . . 245
V
VehicleAlarm System . . . . . . . . . . . . . . . . . . 46
Canadian Owners . . . . . . . . . . . . . . . 2
Control . . . . . . . . . . . . . . . . . . . . . . . 193
Identification Number (VIN) . . . 319
Load Limits . . . . . . . . . . . . . . . . . . . 197
Messages . . . . . . . . . . . . . . . . . . . . 135
Personalization . . . . . . . . . . . . . . . 142
Reminder Messages . . . . . . . . . . 141
Security . . . . . . . . . . . . . . . . . . . . . . . . 46
Service Soon Light . . . . . . . . . . . .118
Starting and Stopping . . . . . . . . . 203