2018 CHEVROLET BOLT EV traction control

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11434431) - 2018 - crc - 2/14/18
256 Vehicle Care
California Perchlorate
Materials Requirements
Certain types of automotive
applications, such as airbag
initiators, seat belt pretensioners,
and lithium batteries contained in
Remote Keyless Entry transmitters,
may contain perchlorate materials.
Special handling may be necessary.
For additional information, see
www.dtsc.ca.gov/hazardouswaste/
perchlorate.
Accessories and
Modifications
Adding non-dealer accessories or
making modifications to the vehicle
can affect vehicle performance and
safety, including such things as
airbags, braking, stability, ride and
handling, emissions systems,
aerodynamics, durability, and
electronic systems like antilock
brakes, traction control, and stability
control. These accessories or
modifications could even cause
malfunction or damage not covered
by the vehicle warranty.Damage to suspension components
caused by modifying vehicle height
outside of factory settings will not be
covered by the vehicle warranty.
Damage to vehicle components
resulting from modifications or the
installation or use of non-GM
certified parts, including control
module or software modifications, is
not covered under the terms of the
vehicle warranty and may affect
remaining warranty coverage for
affected parts.
GM Accessories are designed to
complement and function with other
systems on the vehicle. See your
dealer to accessorize the vehicle
using genuine GM Accessories
installed by a dealer technician.
Also, see
Adding Equipment to the
Airbag-Equipped Vehicle 081.
Vehicle Checks
Doing Your Own
Service Work
{Warning
Never try to do your own service
on high voltage battery
components. You can be injured
and the vehicle can be damaged
if you try to do your own service
work. Service and repair of these
high voltage battery components
should only be performed by a
trained dealer technician with the
proper knowledge and tools.
Exposure to high voltage can
cause shock, burns, and even
death. The high voltage
components in the vehicle can
only be serviced by technicians
with special training.
(Continued)

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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292 Vehicle Care
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 0280, 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. See
Tire
Rotation 0290 for information
on proper tire rotation. However,
if it is necessary to replace only
one axle set of worn tires, place
the new tires on the rear axle.
Winter tires with the same speed
rating as the original equipment
tires may not be available for H,
V, W, and ZR speed rated tires.
Never exceed the winter tire's
maximum speed capability when
using winter tires with a lower
speed rating.
{Warning
Tires could explode during
improper service. Attempting
to mount or dismount a tire
(Continued)
Warning (Continued)
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,
or types may cause loss of
control of the vehicle, resulting in
a crash or other vehicle damage.
Use the correct size, brand, and
type of tire on all four wheels.
{Warning
Using bias-ply tires on the
vehicle may cause the wheel
rim flanges to develop cracks
(Continued)

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11434431) - 2018 - crc - 2/14/18
Vehicle Care 293
Warning (Continued)
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.
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.
Vehicles that have a tire
pressure monitoring system
could give an inaccurate
low-pressure warning if non-TPC
Spec rated tires are installed.
See Tire Pressure Monitor
Operation 0286. The Tire and Loading
Information label indicates the
original equipment tires on the
vehicle. See
Vehicle Load Limits
0 200.
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.
{Warning
If different sized wheels are used,
there may not be an acceptable
level of performance and safety if
(Continued)
Warning (Continued)
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 0291 and
Accessories and Modifications
0 256.
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

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11434431) - 2018 - crc - 2/14/18
294 Vehicle Care
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.
Temperature
The temperature grades are A
(the highest), B, and C,
representing the tire's resistance
to the generation of heat and its
ability to dissipate heat when
tested under controlled
conditions on a specified indoor

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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296 Vehicle Care
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.
If a Tire Goes Flat
This vehicle has self-sealing tires.
SeeSelf-Sealing Tires 0279. 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,
especially if the tires are maintained
properly. If air goes out of a tire, it is
much more likely to leak out slowly.
See Tires 0278. 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 will
create 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

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11434431) - 2018 - crc - 2/14/18
360 Index
Charging (cont'd)Wireless . . . . . . . . . . . . . . . . . . . . . . .115
Charging Status Screens . . . . . . . 240
Charging System Light . . . . . . . . . 125
Child Restraints Infants and Young Children . . . . . 85
Lower Anchors and Tethersfor Children . . . . . . . . . . . . . . . . . . . 90
Older Children . . . . . . . . . . . . . . . . . . 83
Securing . . . . . . . . . . . . . . . . . . .99, 101
Systems . . . . . . . . . . . . . . . . . . . . . . . . 87
Circuit Breakers . . . . . . . . . . . . . . . . 272
Cleaning Exterior Care . . . . . . . . . . . . . . . . . .311
Interior Care . . . . . . . . . . . . . . . . . . 316
Climate Control Systems Automatic . . . . . . . . . . . . . . . . . . . . . 186
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Cluster, Instrument . . . . . . . . . . . . . 118
Collision Damage Repair . . . . . . . 339
Compartment
Underhood . . . . . . . . . . . . . . . . . . . 259
Compartments
Storage . . . . . . . . . . . . . . . . . . . . . . . 105
Compass . . . . . . . . . . . . . . . . . . . . . . . 113
Compressor Kit, Tire Sealant . . . 297
Connections OnStar . . . . . . . . . . . . . . . . . . . . . . . 349 Control
Traction and Electronic
Stability . . . . . . . . . . . . . . . . . . . . . 217
Control of a Vehicle . . . . . . . . . . . . . 195
Convex Mirrors . . . . . . . . . . . . . . . . . . 50
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . 186
Cooling System . . . . . . . . . . . . . . . . . 260
Courtesy Lamps . . . . . . . . . . . . . . . . 155
Courtesy Transportation Program . . . . . . . . . . . . . . . . . . . . . . . 338
Cover
Cargo . . . . . . . . . . . . . . . . . . . . . . . . . 106
Cruise Control . . . . . . . . . . . . . . . . . . 219 Light . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Cupholders . . . . . . . . . . . . . . . . . . . . . 105
Customer Assistance . . . . . . . . . . . 335 Offices . . . . . . . . . . . . . . . . . . . . . . . . 334
Text Telephone (TTY)Users . . . . . . . . . . . . . . . . . . . . . . . 335
Customer Information Service Publications
Ordering Information . . . . . . . . 341
Customer Satisfaction Procedure . . . . . . . . . . . . . . . . . . . . . 332
D
Damage Repair, Collision . . . . . . . 339
Danger, Warning, and Caution . . . . 2 Data Collection
OnStar . . . . . . . . . . . . . . . . . . . . . . . 345
Data Recorders, Event . . . . . . . . . 344
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . 152
Defensive Driving . . . . . . . . . . . . . . . 194
Delayed Charging Override . . . . . 239
Delayed Locking . . . . . . . . . . . . . . . . . 43
Devices Auxiliary . . . . . . . . . . . . . . . . . . . . . . 172
Diagnostics
OnStar . . . . . . . . . . . . . . . . . . . . . . . 351
Distracted Driving . . . . . . . . . . . . . . . 194
Dome Lamps . . . . . . . . . . . . . . . . . . . 155
Door Ajar Light . . . . . . . . . . . . . . . . . . . . . 131
Delayed Locking . . . . . . . . . . . . . . . . 43
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Power Locks . . . . . . . . . . . . . . . . . . . . 43
Drive Unit Electric . . . . . . . . . . . . . . . . . . . . . . . 208
Driver Teen . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Driver Assistance Systems . . . . . 221
Driver Efficiency Gauge . . . . . . . . 122
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . . 141

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11434431) - 2018 - crc - 2/14/18
Index 363
Lap-Shoulder Belt . . . . . . . . . . . . . . . 67
LATCH SystemReplacing Parts after aCrash . . . . . . . . . . . . . . . . . . . . . . . . . 99
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . . 90
LED Lighting . . . . . . . . . . . . . . . . . . . . 269
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Lighting
Entry . . . . . . . . . . . . . . . . . . . . . . . . . 156
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Illumination Control . . . . . . . . . . . 154
LED . . . . . . . . . . . . . . . . . . . . . . . . . . 269
Lights Airbag Readiness . . . . . . . . . . . . . 124
Antilock Brake System(ABS) Warning . . . . . . . . . . . . . . 127
Brake System Warning . . . . . . . 126
Charging System . . . . . . . . . . . . . 125
Cruise Control . . . . . . . . . . . . . . . . 130
Door Ajar . . . . . . . . . . . . . . . . . . . . . 131
Electric Parking Brake . . . . . . . . 126
Flash-to-Pass . . . . . . . . . . . . . . . . . 152
High-Beam On . . . . . . . . . . . . . . . . 130
High/Low Beam Changer . . . . . 152
Lane Keep Assist . . . . . . . . . . . . . 127
Seat Belt Reminders . . . . . . . . . . 123
Security . . . . . . . . . . . . . . . . . . . . . . 130 Lights (cont'd)
Service Electric Parking
Brake . . . . . . . . . . . . . . . . . . . . . . . 127
Service Vehicle Soon . . . . . . . . . 126
Sport Mode . . . . . . . . . . . . . . . . . . . 127
StabiliTrak OFF . . . . . . . . . . . . . . . 128
Tire Pressure . . . . . . . . . . . . . . . . . 129
Traction Control System (TCS)/StabiliTrak . . . . . . . . . . . . 129
Traction Off . . . . . . . . . . . . . . . . . . . 128
Vehicle Ready . . . . . . . . . . . . . . . . 130
Locks Automatic Door . . . . . . . . . . . . . . . . . 43
Delayed Locking . . . . . . . . . . . . . . . . 43
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Lockout Protection . . . . . . . . . . . . . . 44
Power Door . . . . . . . . . . . . . . . . . . . . . 43
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Loss of Control . . . . . . . . . . . . . . . . . 196
Lower Anchors and Tethers for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . . . 90
M
MaintenanceAir Conditioning RegularOperation . . . . . . . . . . . . . . . . . . . 192
Records . . . . . . . . . . . . . . . . . . . . . . 329 Maintenance and Care
Additional . . . . . . . . . . . . . . . . . . . . . 325
Maintenance Schedule . . . . . . . . . 322 Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . 327
Messages Propulsion Power . . . . . . . . . . . . . 143
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 142
Vehicle Speed . . . . . . . . . . . . . . . . 143
Mirror Rear Camera . . . . . . . . . . . . . . . . . . . 51
Mirrors Automatic DimmingRearview . . . . . . . . . . . . . . . . . . . . . . 51
Convex . . . . . . . . . . . . . . . . . . . . . . . . . 50
Folding . . . . . . . . . . . . . . . . . . . . . . . . . 50
Manual Rearview . . . . . . . . . . . . . . . 51
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Mirrors, Interior Rearview . . . . . . . . 51
Mobile Applications KeyPass . . . . . . . . . . . . . . . . . . . . . . . . 45
Modes Driver Selected . . . . . . . . . . . . . . . 208
Monitor System, Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 285
Multi-band Antenna . . . . . . . . . . . . . 165

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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Index 367
Tires (cont'd)Inspection . . . . . . . . . . . . . . . . . . . . 289
Pressure . . . . . . . . . . . . . . . . . . . . . . 284
Pressure Light . . . . . . . . . . . . . . . . 129
Pressure Monitor Operation . . 286
Pressure Monitor System . . . . . 285
Rotation . . . . . . . . . . . . . . . . . . . . . . 290
Sealant and
Compressor Kit . . . . . . . . . . . . . 297
Sealant and Compressor Kit, Storing . . . . . . . . . . . . . . . . . . 303
Self-Sealing . . . . . . . . . . . . . . . . . . 279
Sidewall Labeling . . . . . . . . . . . . . 280
Terminology and Definitions . . 282
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . . . 293
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . 295
Wheel Replacement . . . . . . . . . . 295
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 291
Winter . . . . . . . . . . . . . . . . . . . . . . . . 279
Towing
General Information . . . . . . . . . . 252
Recreational Vehicle . . . . . . . . . . 309
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 307 Traction
Control System (TCS)/
StabiliTrak Light . . . . . . . . . . . . . 129
Off Light . . . . . . . . . . . . . . . . . . . . . . 128
Traction Control/Electronic Stability Control . . . . . . . . . . . . . . . 217
Trademarks and License
Agreements . . . . . . . . . . . . . . . . . . . 184
Transportation Program, Courtesy . . . . . . . . . . . . . . . . . . . . . . 338
Trip Odometer . . . . . . . . . . . . . . . . . . 121
Turn and Lane-Change
Signals . . . . . . . . . . . . . . . . . . . . . . . . 154
Turn Signal Bulb Replacement . . . . . . . . . . . . 270
U
Underhood CompartmentFuse Block . . . . . . . . . . . . . . . . . . . . 272
Underhood Compartment Overview . . . . . . . . . . . . . . . . . . . . . . 259
Uniform Tire Quality Grading . . . 293
Updates Software . . . . . . . . . . . . . . . . . . . . . . 161
USB Port . . . . . . . . . . . . . . . . . . . . . . . 166
Using This Manual . . . . . . . . . . . . . . . . 2
Utility Interruption of Charging . . . . . . . . . . . . . . . . . . . . . . 250
V
VehicleAlarm System . . . . . . . . . . . . . . . . . . 48
Canadian Owners . . . . . . . . . . . . . . . 2
Control . . . . . . . . . . . . . . . . . . . . . . . 195
Identification Number (VIN) . . . 330
Load Limits . . . . . . . . . . . . . . . . . . . 200
Messages . . . . . . . . . . . . . . . . . . . . 142
Personalization . . . . . . . . . . . . . . . 143
Security . . . . . . . . . . . . . . . . . . . . . . . . 48
Service Soon Light . . . . . . . . . . . 126
Speed Messages . . . . . . . . . . . . . 143
Starting and Stopping . . . . . . . . . 205
Towing . . . . . . . . . . . . . . . . . . . . . . . . 307
Vehicle Ahead Indicator . . . . . . . . 128
Vehicle Care Storing the Tire Sealantand Compressor Kit . . . . . . . . . 303
Tire Pressure . . . . . . . . . . . . . . . . . 284
Vehicle Data Recording and Privacy . . . . . . . . . . . . . . . . . . . . . . . . 344
Vehicle Ready Light . . . . . . . . . . . . 130
Ventilation, Air . . . . . . . . . . . . . . . . . . 190
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Voltage Devices and Wiring . . . . 271