2020 CHEVROLET BOLT EV traction control

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13556250) - 2020 - CRC - 2/11/20
234 Vehicle Care
California Perchlorate
Materials Requirements
Certain types of automotive
applications, such as airbag
initiators, seat belt pretensioners,
and lithium batteries contained in
electronic keys, may contain
perchlorate materials. Perchlorate
Material–special handling may
apply. 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 057.
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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Vehicle Care 271
Treadwear indicators are one way to
tell when it is time for new tires.
Treadwear indicators appear when
the tires have only 1.6 mm (1/16 in)
or less of tread remaining. SeeTire
Inspection 0269 and
Tire Rotation 0269.
The rubber in tires ages over time.
This also applies to the spare tire,
if the vehicle has one, even if it is
never used. Multiple factors
including temperatures, loading
conditions, and inflation pressure
maintenance affect how fast aging
takes place. GM recommends that
tires, including the spare if
equipped, be replaced after six years, regardless of tread wear. To
identify the age of a tire, use the tire
manufacture date which is the last
four digits of the DOT Tire
Identification Number (TIN) which is
molded into one side of the tire
sidewall. The first two digits
represent the week (01–52) and the
last two digits, the year. For
example, the third week of the year
2010 would have a four-digit DOT
date of 0310.Vehicle Storage
Tires age when stored normally
mounted on a parked vehicle. Park
a vehicle that will be stored for at
least a month in a cool, dry, clean
area away from direct sunlight to
slow aging. This area should be free
of grease, gasoline, or other
substances that can deteriorate
rubber.
Parking for an extended period can
cause flat spots on the tires that
may result in vibrations while
driving. When storing a vehicle for
at least a month, remove the tires or
raise the vehicle to reduce the
weight from the tires.
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

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13556250) - 2020 - CRC - 2/11/20
Vehicle Care 273
The Tire and Loading
Information label indicates the
original equipment tires on the
vehicle. SeeVehicle Load Limits
0 178.
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 0271 and
Accessories and Modifications
0 234.
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:

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13556250) - 2020 - CRC - 2/11/20
274 Vehicle Care
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 indoorlaboratory 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.

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13556250) - 2020 - CRC - 2/11/20
276 Vehicle Care
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 0258. 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 0257. 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 used in a skid. Stop pressing the
accelerator pedal and steer to
straighten the vehicle. It may be
very bumpy and noisy. Gently brake
to a stop, well off the road,
if possible.
{Warning
Lifting a vehicle and getting under
it to do maintenance or repairs is
dangerous without the
appropriate safety equipment and
training. If a jack is provided with
the vehicle, it is designed only for
changing a flat tire. If it is used for
anything else, you or others could
be badly injured or killed if the
vehicle slips off the jack. If a jack
is provided with the vehicle, only
use it for changing a flat tire.
If a tire goes flat, avoid further tire
and wheel damage by driving slowly
to a level place, well off the road,
if possible. 1. Turn on the hazard warning flashers. See Hazard Warning
Flashers 0131.

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13556250) - 2020 - CRC - 2/11/20
Index 337
Charging (cont'd)Wireless . . . . . . . . . . . . . . . . . . . . . . . . 91
Charging Options . . . . . . . . . . . . . . . 117
Charging Status Screens . . . . . . . 218
Charging System Light . . . . . . . . . 101
Child Restraints Infants and Young Children . . . . . 61
Lower Anchors and Tethers
for Children . . . . . . . . . . . . . . . . . . . 66
Older Children . . . . . . . . . . . . . . . . . . 59
Securing . . . . . . . . . . . . . . . . . . . . 76, 78
Systems . . . . . . . . . . . . . . . . . . . . . . . . 63
Circuit Breakers . . . . . . . . . . . . . . . . 250
Cleaning Exterior Care . . . . . . . . . . . . . . . . . 291
Interior Care . . . . . . . . . . . . . . . . . . 295
Climate Control Systems Automatic . . . . . . . . . . . . . . . . . . . . . 163
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Cluster, Instrument . . . . . . . . . . . . . . 94
Collision Damage Repair . . . . . . . 319
Compartment Underhood . . . . . . . . . . . . . . . . . . . 237
Compartments Storage . . . . . . . . . . . . . . . . . . . . . . . . . 81
Compass . . . . . . . . . . . . . . . . . . . . . . . . 89
Compressor Kit, Tire Sealant . . . 277 Connected Services
Connections . . . . . . . . . . . . . . . . . . 333
Diagnostics . . . . . . . . . . . . . . . . . . . 334
Navigation . . . . . . . . . . . . . . . . . . . . 332
Connections Connected Services . . . . . . . . . . 333
Control
Traction and ElectronicStability . . . . . . . . . . . . . . . . . . . . . 194
Control of a Vehicle . . . . . . . . . . . . . 173
Convex Mirrors . . . . . . . . . . . . . . . . . . 24
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . 163
Cooling System . . . . . . . . . . . . . . . . . 238
Courtesy Lamps . . . . . . . . . . . . . . . . 132
Courtesy Transportation Program . . . . . . . . . . . . . . . . . . . . . . . 318
Cover Cargo . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Cruise Control . . . . . . . . . . . . . . . . . . 196 Light . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Cupholders . . . . . . . . . . . . . . . . . . . . . . 81
Customer Assistance . . . . . . . . . . . 315
Offices . . . . . . . . . . . . . . . . . . . . . . . . 314
Text Telephone (TTY)Users . . . . . . . . . . . . . . . . . . . . . . . 315
Customer Information Publications OrderingInformation . . . . . . . . . . . . . . . . . . 321 Customer Satisfaction
Procedure . . . . . . . . . . . . . . . . . . . . . 312
Cybersecurity . . . . . . . . . . . . . . . . . . . 324
D
Damage Repair, Collision . . . . . . . 319
Danger, Warning, and Caution . . . . 2
Data Collection OnStar . . . . . . . . . . . . . . . . . . . . . . . 325
Data Recorders, Event . . . . . . . . . 324
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . 130
Defensive Driving . . . . . . . . . . . . . . . 173
Delayed Charging Override . . . . . 217
Delayed Locking . . . . . . . . . . . . . . . . . 19
Devices Auxiliary . . . . . . . . . . . . . . . . . . . . . . 149
Diagnostics Connected Services . . . . . . . . . . 334
Distracted Driving . . . . . . . . . . . . . . . 172
Dome Lamps . . . . . . . . . . . . . . . . . . . 133
Door Ajar Light . . . . . . . . . . . . . . . . . . . . . 107
Delayed Locking . . . . . . . . . . . . . . . . 19
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Power Locks . . . . . . . . . . . . . . . . . . . . 19
Drive Unit Electric . . . . . . . . . . . . . . . . . . . . . . . 187

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
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340 Index
Lamps (cont'd)Exterior Controls . . . . . . . . . . . . . . 128
Exterior Lamps Off
Reminder . . . . . . . . . . . . . . . . . . . 130
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . 134
License Plate . . . . . . . . . . . . . . . . . 249
On Reminder . . . . . . . . . . . . . . . . . 106
Reading . . . . . . . . . . . . . . . . . . . . . . 133
Lane Change Alert (LCA) . . . . . . . 209
Lane Keep Assist (LKA) . . . . . . . . 211
Lane Keep Assist Light . . . . . . . . . 103
Lap-Shoulder Belt . . . . . . . . . . . . . . . 42
LATCH System Replacing Parts after aCrash . . . . . . . . . . . . . . . . . . . . . . . . . 75
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . . 66
LED Lighting . . . . . . . . . . . . . . . . . . . . 248
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . 134
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Illumination Control . . . . . . . . . . . 132
LED . . . . . . . . . . . . . . . . . . . . . . . . . . 248
Lights
Airbag Readiness . . . . . . . . . . . . . 100 Lights (cont'd)
Antilock Brake System
(ABS) Warning . . . . . . . . . . . . . . 103
Brake System Warning . . . . . . . 102
Charging System . . . . . . . . . . . . . 101
Cruise Control . . . . . . . . . . . . . . . . 107
Door Ajar . . . . . . . . . . . . . . . . . . . . . 107
Electric Parking Brake . . . . . . . . 102
Flash-to-Pass . . . . . . . . . . . . . . . . . 130
High-Beam On . . . . . . . . . . . . . . . . 106
High/Low Beam Changer . . . . . 130
Lane Keep Assist . . . . . . . . . . . . . 103
Seat Belt Reminders . . . . . . . . . . . . 99
Security . . . . . . . . . . . . . . . . . . . . . . 106
Service Electric Parking Brake . . . . . . . . . . . . . . . . . . . . . . . 103
Service Vehicle Soon . . . . . . . . . 102
Sport Mode . . . . . . . . . . . . . . . . . . . 103
StabiliTrak OFF . . . . . . . . . . . . . . . 105
Tire Pressure . . . . . . . . . . . . . . . . . 105
Traction Control System (TCS)/StabiliTrak . . . . . . . . . . . . 105
Traction Off . . . . . . . . . . . . . . . . . . . 104
Vehicle Ready . . . . . . . . . . . . . . . . 106
Locks Automatic Door . . . . . . . . . . . . . . . . . 19
Delayed Locking . . . . . . . . . . . . . . . . 19
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Locks (cont'd)
Lockout Protection . . . . . . . . . . . . . . 20
Power Door . . . . . . . . . . . . . . . . . . . . . 19
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Loss of Control . . . . . . . . . . . . . . . . . 175
Lower Anchors and Tethers for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . . . 66
M
MaintenanceAir Conditioning Regular
Operation . . . . . . . . . . . . . . . . . . . 169
Records . . . . . . . . . . . . . . . . . . . . . . 309
Maintenance and Care Additional . . . . . . . . . . . . . . . . . . . . . 304
Maintenance Schedule . . . . . . . . . 301
Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . 307
Messages Propulsion Power . . . . . . . . . . . . . 120
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 120
Vehicle Speed . . . . . . . . . . . . . . . . 121
Mirror Rear Camera . . . . . . . . . . . . . . . . . . . 25
Mirrors
Automatic DimmingRearview . . . . . . . . . . . . . . . . . . . . . . 25

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13556250) - 2020 - CRC - 2/11/20
344 Index
Tires (cont'd)All-Season . . . . . . . . . . . . . . . . . . . . 257
Buying New Tires . . . . . . . . . . . . . 271
Chains . . . . . . . . . . . . . . . . . . . . . . . . 276
Designations . . . . . . . . . . . . . . . . . 260
Different Size . . . . . . . . . . . . . . . . . 273
If a Tire Goes Flat . . . . . . . . . . . . 276
Inspection . . . . . . . . . . . . . . . . . . . . 269
Pressure . . . . . . . . . . . . . . . . . . . . . . 263
Pressure Light . . . . . . . . . . . . . . . . 105
Pressure Monitor Operation . . 265
Pressure Monitor System . . . . . 264
Rotation . . . . . . . . . . . . . . . . . . . . . . 269
Sealant and
Compressor Kit . . . . . . . . . . . . . 277
Sealant and Compressor
Kit, Storing . . . . . . . . . . . . . . . . . . 283
Self-Sealing . . . . . . . . . . . . . . . . . . 258
Sidewall Labeling . . . . . . . . . . . . . 259
Terminology and Definitions . . 260
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . . . 273
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . . . 275
Wheel Replacement . . . . . . . . . . 275
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 270
Winter . . . . . . . . . . . . . . . . . . . . . . . . 258 Towing
General Information . . . . . . . . . . 230
Recreational Vehicle . . . . . . . . . . 289
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 287
Traction Control System(TCS)/StabiliTrak Light . . . . . . 105
Off Light . . . . . . . . . . . . . . . . . . . . . . 104
Traction Control/Electronic Stability Control . . . . . . . . . . . . . . . 194
Trademarks and License
Agreements . . . . . . . . . . . . . . . . . . . 161
Transportation Program, Courtesy . . . . . . . . . . . . . . . . . . . . . . 318
Trip Odometer . . . . . . . . . . . . . . . . . . . 97
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . . . . 132
Turn Signal Bulb Replacement . . . . . . . . . . . . 248
U
Underhood CompartmentFuse Block . . . . . . . . . . . . . . . . . . . . 251
Underhood Compartment Overview . . . . . . . . . . . . . . . . . . . . . . 237
Uniform Tire Quality Grading . . . 273
Updates
Software . . . . . . . . . . . . . . . . . . . . . . 139 USB Port . . . . . . . . . . . . . . . . . . . . . . . 143
Using This Manual . . . . . . . . . . . . . . . . 2
Utility Interruption of
Charging . . . . . . . . . . . . . . . . . . . . . . 228
V
VehicleAlarm System . . . . . . . . . . . . . . . . . . 22
Canadian Owners . . . . . . . . . . . . . . . 2
Control . . . . . . . . . . . . . . . . . . . . . . . 173
Identification Number (VIN) . . . 310
Load Limits . . . . . . . . . . . . . . . . . . . 178
Messages . . . . . . . . . . . . . . . . . . . . 120
Personalization . . . . . . . . . . . . . . . 121
Security . . . . . . . . . . . . . . . . . . . . . . . . 22
Service Soon Light . . . . . . . . . . . 102
Speed Messages . . . . . . . . . . . . . 121
Starting and Stopping . . . . . . . . . 184
Towing . . . . . . . . . . . . . . . . . . . . . . . . 287
Vehicle Ahead Indicator . . . . . . . . 104
Vehicle Care Storing the Tire Sealantand Compressor Kit . . . . . . . . . 283
Tire Pressure . . . . . . . . . . . . . . . . . 263
Vehicle Data Recording and Privacy . . . . . . . . . . . . . . . . . . . . . . . . 324
Vehicle Ready Light . . . . . . . . . . . . 106
Ventilation, Air . . . . . . . . . . . . . . . . . . 167