2020 CHEVROLET VOLT brakes

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
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
300 Service and Maintenance
Service and
Maintenance
General Information
General Information . . . . . . . . . . 300
Maintenance Schedule
Maintenance Schedule . . . . . . . 301
Owner Checks and Services
Owner Checks andServices . . . . . . . . . . . . . . . . . . . . 304
Additional Maintenance
and Care
Additional Maintenanceand Care . . . . . . . . . . . . . . . . . . . . 304
Recommended Fluids,
Lubricants, and Parts
Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . 307
Maintenance Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . 308
Maintenance Records
Maintenance Records . . . . . . . . 309
General Information
Your vehicle is an important
investment. This section describes
the required maintenance for the
vehicle. Follow this schedule to help
protect against major repair
expenses resulting from neglect or
inadequate maintenance. It may
also help to maintain the value of
the vehicle if it is sold. It is the
responsibility of the owner to have
all required maintenance performed.
Your dealer has trained technicians
who can perform required
maintenance using genuine
replacement parts. They have
up-to-date tools and equipment for
fast and accurate diagnostics. Many
dealers have extended evening and
Saturday hours, courtesy
transportation, and online
scheduling to assist with service
needs.
Your dealer recognizes the
importance of providing
competitively priced maintenance
and repair services. With trained
technicians, the dealer is the place for routine maintenance such as tire
rotations and additional
maintenance items like tires, brakes,
batteries, and wiper blades.
Caution
Damage caused by improper
maintenance can lead to costly
repairs and may not be covered
by the vehicle warranty.
Maintenance intervals, checks,
inspections, recommended fluids,
and lubricants are important to
keep the vehicle in good working
condition.
Do not have chemical flushes that
are not approved by GM
performed on the vehicle. The
use of flushes, solvents, cleaners,
or lubricants that are not
approved by GM could damage
the vehicle, requiring expensive
repairs that are not covered by
the vehicle warranty.

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13556250) - 2020 - CRC - 2/11/20
304 Service and Maintenance
Owner Checks and
Services
.At least twice a year, have
underbody flushing service
performed. See "Underbody
Maintenance" in Exterior Care
0 291.
Additional
Maintenance and Care
Your vehicle is an important
investment and caring for it properly
may help to avoid future costly
repairs. To maintain vehicle
performance, additional
maintenance services may be
required. It is recommended that
your dealer perform these services
— their trained dealer technicians
know your vehicle best. Your dealer
can also perform a thorough
assessment with a multi-point
inspection to recommend when your
vehicle may need attention. The
following list is intended to explain
the services and conditions to look
for that may indicate services are
required. Battery
The battery supplies power to
operate any additional electrical
accessories.
.
To avoid break-down or failure,
maintain a battery with full
power.
. Trained dealer technicians have
the diagnostic equipment to test
the battery and ensure that the
connections and cables are
corrosion-free.
Brakes
Brakes stop the vehicle and are
crucial to safe driving.
. Signs of brake wear may include
chirping, grinding, or squealing
noises, or difficulty stopping.
. Trained dealer technicians have
access to tools and equipment
to inspect the brakes and
recommend quality parts
engineered for the vehicle.

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13556250) - 2020 - CRC - 2/11/20
Customer Information 321
In a crash, the sensing system may
shut down the high voltage system.
SeeBattery - North America 0242
for important safety information.
If an airbag has inflated, see What
Will You See after an Airbag
Inflates? 051.
If the vehicle is damaged from a
crash, flood, fire, or other event it
may be necessary to have the
vehicle inspected. SeeBattery -
North America 0242 for important
safety information.
Managing the Vehicle Damage
Repair Process
In the event that the vehicle requires
damage repairs, GM recommends
that you take an active role in its
repair. If you have a pre-determined
repair facility of choice, take the
vehicle there, or have it towed there.
Specify to the facility that any
required replacement collision parts
be original equipment parts, either
new Genuine GM parts or recycled
original GM parts. Remember,
recycled parts will not be covered by
the GM vehicle warranty. Insurance pays the bill for the repair,
but you must live with the repair.
Depending on your policy limits,
your insurance company may
initially value the repair using
aftermarket parts. Discuss this with
the repair professional, and insist on
Genuine GM parts. Remember,
if the vehicle is leased, you may be
obligated to have the vehicle
repaired with Genuine GM parts,
even if your insurance coverage
does not pay the full cost.
If another party's insurance
company is paying for the repairs,
you are not obligated to accept a
repair valuation based on that
insurance company's collision policy
repair limits, as you have no
contractual limits with that company.
In such cases, you can have control
of the repair and parts choices as
long as the cost stays within
reasonable limits.
Publication Ordering
Information
Service Manuals
Service manuals have the diagnosis
and repair information on the
engine, transmission, axle,
suspension, brakes, electrical
system, steering system, body, etc.
Customer Literature
Owner
’s manuals are written
specifically for owners and are
intended to provide basic
operational information about the
vehicle. The owner ’s manual
includes the Maintenance Schedule
for all models.
Customer literature publications
available for purchase include
owner ’s manuals, warranty
manuals, infotainment manuals, and
portfolios. Portfolios include an
owner ’s manual, warranty manual,
infotainment manual, if applicable,
and zip lock bag or pouch.

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13556250) - 2020 - CRC - 2/11/20
336 Index
ArmrestRear Seat . . . . . . . . . . . . . . . . . . . . . . 38
Assistance Program, Roadside . . . . . . . . . . . . . . . . . . . . . . 316
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . . . 203
Assistance Systems for
Parking and Backing . . . . . . . . . . 200
Audio Bluetooth . . . . . . . . . . . . . . . . . . . . . 150
Theft-Deterrent Feature . . . . . . . 136
Automatic Climate Control System . . . . . . . 163
Door Locks . . . . . . . . . . . . . . . . . . . . . 19
Emergency Braking (AEB) . . . . 205
Headlamp System . . . . . . . . . . . . 131
Auxiliary Devices . . . . . . . . . . . . . . . . . . . . . . . 149
B
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . 98Exterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . 134
Power Protection . . . . . . . . . . . . . 134
Battery - North America . . . . 242, 284
Battery Gauge High Voltage . . . . . . . . . . . . . . . . . . . . 98
Blade Replacement, Wiper . . . . . 244 Bluetooth
Overview . . . . . . . . . . . . . . . . . . . . . 153
Bluetooth Audio . . . . . . . . . . . . . . . . 150
Brake Parking, Electric . . . . . . . . . . . . . . 192
System Warning Light . . . . . . . . 102
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . 240
Antilock . . . . . . . . . . . . . . . . . . . . . . . 191
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 193
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 241
Regenerative Braking . . . . . . . . . 194
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 173 AutomaticEmergency (AEB) . . . . . . . . . . . 205
Braking System Front Pedestrian (FPB) . . . . . . . 207
Break-In, New Vehicle . . . . . . . . . . 182
Bulb Replacement Halogen Bulbs . . . . . . . . . . . . . . . . 247
Headlamp Aiming . . . . . . . . . . . . . 247
Headlamps . . . . . . . . . . . . . . . . . . . 247
High Intensity Discharge(HID) Lighting . . . . . . . . . . . . . . . 248
License Plate Lamps . . . . . . . . . 249
Taillamps, Turn Signal, Stoplamps, and Back-up
Lamps . . . . . . . . . . . . . . . . . . . . . . 248
Buying New Tires . . . . . . . . . . . . . . . 271
C
Calibration . . . . . . . . . . . . . . . . . . . . . . . 89
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . 234
California Proposition
65 Warning . . . . . . . . . .233, 242, 284, Back Cover
Canadian Vehicle Owners . . . . . . . . 2
Capacities and
Specifications . . . . . . . . . . . . . . . . . 311
Carbon Monoxide Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . 21
Winter Driving . . . . . . . . . . . . . . . . 177
Cargo Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Management System . . . . . . . . . . . 83
Caution, Danger, and Warning . . . . 2
Center Console Storage . . . . . . . . . 82
Chains, Tire . . . . . . . . . . . . . . . . . . . . 276
Charge Cord . . . . . . . . . . . . . . . . . . . . 222
Charging Delay Override . . . . . . . . . . . . . . . 217
Electrical Requirements . . . . . . 229
Plug-In . . . . . . . . . . . . . . . . . . . . . . . 214
Programmable . . . . . . . . . . . . . . . . 107
Utility Interruption . . . . . . . . . . . . . 228

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
13556250) - 2020 - CRC - 2/11/20
338 Index
DriverTeen . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Driver Assistance Systems . . . . . 199
Driver Efficiency Gauge . . . . . . . . . 98
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . . 118
Driver Selected Operating
Modes . . . . . . . . . . . . . . . . . . . . . . . . 186
Driving Assistance Systems . . . . . . . . . . 203
Defensive . . . . . . . . . . . . . . . . . . . . . 173
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 173
Hill and Mountain Roads . . . . . . 176
If the Vehicle is Stuck . . . . . . . . . 178
Loss of Control . . . . . . . . . . . . . . . 175
Off-Road Recovery . . . . . . . . . . . 175
One-Pedal . . . . . . . . . . . . . . . . . . . . 190
Vehicle Load Limits . . . . . . . . . . . 178
Wet Roads . . . . . . . . . . . . . . . . . . . 176
Winter . . . . . . . . . . . . . . . . . . . . . . . . 177
Driving for Better Energy
Efficiency . . . . . . . . . . . . . . . . . . . . . 171
E
Electric Drive Unit . . . . . . . . . . . . . . 187
Electric Parking Brake . . . . . . . . . . 192 Electric Parking Brake Light . . . . 102
Electrical Equipment,
Add-On . . . . . . . . . . . . . . . . . . . . . . . 230
Electrical Requirements for Battery Charging . . . . . . . . . . . . . . 229
Electrical System Fuses and Circuit Breakers . . . 250
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 255
Overload . . . . . . . . . . . . . . . . . . . . . 250
Emergency
OnStar . . . . . . . . . . . . . . . . . . . . . . . 327
Energy Efficiency Driving . . . . . . . . . . . . . . . . . . . . . . . . 171
Energy Information . . . . . . . . . . . . . 115
Engine Cooling System . . . . . . . . . . . . . . . 238
Entry Lighting . . . . . . . . . . . . . . . . . . . 134
Event Data Recorders . . . . . . . . . . 324
Exit Lighting . . . . . . . . . . . . . . . . . . . . 134
Extended Parking . . . . . . . . . . . . . . . 186
Extender, Seat Belt . . . . . . . . . . . . . . 45
Exterior Lamp Controls . . . . . . . . . 128
Exterior Lamps Off Reminder . . . 130
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . . . 134
F
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 130
Flashers, Hazard Warning . . . . . . 131
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 276
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 298
FluidBrakes . . . . . . . . . . . . . . . . . . . . . . . . 241
Washer . . . . . . . . . . . . . . . . . . . . . . . 239
Folding Mirrors . . . . . . . . . . . . . . . . . . 24
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . 204
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . 322
Front Pedestrian Braking
(FPB) System . . . . . . . . . . . . . . . . . 207
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . . 34
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 35
Fuses
Fuses and Circuit Breakers . . . 250
Instrument Panel FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 255
Underhood Compartment . . . . . 251
G
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . 246
Gauges Battery . . . . . . . . . . . . . . . . . . . . . . . . . 98