2018 CHEVROLET BOLT EV ABS

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11434431) - 2018 - crc - 2/14/18
Driving and Operating 213
Brakes
Antilock Brake
System (ABS)
This vehicle has an Antilock Brake
System (ABS), an advanced
electronic braking system that helps
prevent a braking skid.
When propulsion is active and the
vehicle begins to drive away, ABS
checks itself. A momentary motor or
clicking noise might be heard while
this test is going on, and it might
even be noticed that the brake
pedal moves a little. This is normal.
If there is a problem with ABS, this
warning light stays on. SeeAntilock
Brake System (ABS) Warning Light
0 127. If driving safely on a wet road and it
becomes necessary to slam on the
brakes and continue braking to
avoid a sudden obstacle, a
computer senses that the wheels
are slowing down. If one of the
wheels is about to stop rolling, the
computer will separately work the
brakes at each wheel.
ABS can change the brake pressure
to each wheel, as required, faster
than any driver could. This can help
the driver steer around the obstacle
while braking hard.
As the brakes are applied, the
computer keeps receiving updates
on wheel speed and controls
braking pressure accordingly.
Remember: ABS does not change
the time needed to get a foot up to
the brake pedal or always decrease
stopping distance. If you get too
close to the vehicle in front of you,
there will not be enough time to
apply the brakes if that vehicle
suddenly slows or stops. Always
leave enough room up ahead to
stop, even with ABS.
Using ABS
Do not pump the brakes. Just hold
the brake pedal down firmly and let
ABS work. You might hear the ABS
pump or motor operating and feel
the brake pedal pulsate, but this is
normal.
Braking in Emergencies
ABS allows the driver to steer and
brake at the same time. In many
emergencies, steering can help
more than even the very best
braking.
Electric Parking Brake

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11434431) - 2018 - crc - 2/14/18
Driving and Operating 215
Caution
Driving with the parking brake on
can overheat the brake system
and cause premature wear or
damage to brake system parts.
Make sure that the parking brake
is fully released and the brake
warning light is off before driving.
Automatic EPB Release
The EPB will automatically release if
the vehicle is running, placed into
gear, and an attempt is made to
drive away. Avoid rapid acceleration
when the EPB is applied, to
preserve parking brake lining life.
Brake Assist
The Brake Assist feature is
designed to assist the driver in
stopping or decreasing vehicle
speed in emergency driving
conditions. This feature uses the
stability system hydraulic brake
control module to supplement the
power brake system underconditions where the driver has
quickly and forcefully applied the
brake pedal in an attempt to quickly
stop or slow down the vehicle. The
stability system hydraulic brake
control module increases brake
pressure at each corner of the
vehicle until the ABS activates.
Minor brake pedal pulsation or
pedal movement during this time is
normal and the driver should
continue to apply the brake pedal as
the driving situation dictates. The
Brake Assist feature will
automatically disengage when the
brake pedal is released or brake
pedal pressure is quickly
decreased.
Hill Start Assist (HSA)
The Hill Start Assist (HSA) feature
will activate when the vehicle is
stopped on a moderate to steep
grade to help prevent it from rolling
in an unintended direction. After the
brake pedal has been released and
before the accelerator pedal has
been pressed, HSA uses braking
pressure to hold the vehicle
stationary. If HSA is holding the
vehicle, a DIC message displays.
HSA will not activate in a forward
drive gear when facing downhill,
or in R (Reverse) when facing uphill.
Regenerative Braking
Some braking energy from the
moving vehicle is turned back into
electrical energy. This energy is
then stored back into the high
voltage battery system, increasing
energy efficiency.

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11434431) - 2018 - crc - 2/14/18
Vehicle Care 263
Replacing Brake System Parts
Always replace brake system parts
with new, approved replacement
parts. If this is not done, the brakes
may not work properly. The braking
performance expected can change
in many other ways if the wrong
replacement brake parts are
installed or if parts are improperly
installed.
Brake Fluid
The brake master cylinder reservoir
is filled with GM approved DOT 3
brake fluid as indicated on the
reservoir cap. SeeUnderhood
Compartment Overview 0259 for
the location of the reservoir. Checking Brake Fluid
With the vehicle in P (Park) on a
level surface, the brake fluid level
should be between the minimum
and maximum marks on the brake
fluid reservoir.
There are only two reasons why the
brake fluid level in the reservoir may
go down:
.
Normal brake lining wear. When
new linings are installed, the
fluid level goes back up.
. A fluid leak in the brake
hydraulic system. Have the
brake hydraulic system fixed.
With a leak, the brakes will not
work well.
Always clean the brake fluid
reservoir cap and the area around
the cap before removing it.
Do not top off the brake fluid.
Adding fluid does not correct a leak.
If fluid is added when the linings are
worn, there will be too much fluid
when new brake linings are installed. Add or remove fluid, as
necessary, only when work is done
on the brake hydraulic system.
When the brake fluid falls to a low
level, the brake warning light comes
on. See
Brake System Warning
Light 0126.
Brake fluid absorbs water over time
which degrades the effectiveness of
the brake fluid. Replace brake fluid
at the specified intervals to prevent
increased stopping distance. See
Maintenance Schedule 0322.
What to Add
Use only GM approved DOT 3
brake fluid from a clean, sealed
container. See Recommended
Fluids and Lubricants 0327.
{Warning
The wrong or contaminated brake
fluid could result in damage to the
brake system. This could result in
the loss of braking leading to a
possible injury. Always use the
proper GM approved brake fluid.

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11434431) - 2018 - crc - 2/14/18
Vehicle Care 265
A vehicle cover, which can reduce
sun loading on the vehicle and
improve high voltage battery life, is
available from your dealer.
Refer to the replacement number
shown on the original battery label
when a new 12-volt battery is
needed. The vehicle has an
Absorbed Glass Mat (AGM) 12-volt
battery. Installation of a standard
12-volt battery will result in reduced
12-volt battery life.
When using a 12-volt battery
charger on the 12-volt AGM battery,
some chargers have an AGM
battery setting on the charger.
If available, use the AGM setting on
the charger, to limit charge voltage
to 14.8 volts.
{Warning
WARNING:Battery posts,
terminals, and related
accessories contain lead and lead
compounds, chemicals known to
the State of California to cause
(Continued)
Warning (Continued)
cancer and birth defects or other
reproductive harm. Batteries also
contain other chemicals known to
the State of California to cause
cancer.WASH HANDS AFTER
HANDLING. For more information
go to www.P65Warnings.ca.gov/
passenger-vehicle.
See California Proposition
65 Warning 0255 and the back
cover.
Vehicle Storage
{Warning
Batteries have acid that can burn
you and gas that can explode.
You can be badly hurt if you are
not careful. See Jump Starting -
North America 0304 for tips on
working around a battery without
getting hurt. Up to Four Weeks
.
Plug in the charge cord.
Four Weeks to 12 Months
. Discharge the high voltage
battery until two or three bars
remain on the battery range
indicator (Battery symbol) on the
instrument cluster.
. Do not plug in the charge cord.
. Remove the black negative (−)
cable from the 12-volt battery
and attach a trickle charger to
the battery terminals or keep the
12-volt battery cables connected
and trickle charge from the
underhood remote positive (+)
and negative (−) terminals. See
Jump Starting - North America
0304 for the location of these
terminals.
Caution
The vehicle is equipped with an
AGM/VRLA 12-volt battery, which
can be damaged by using the
(Continued)

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11434431) - 2018 - crc - 2/14/18
Vehicle Care 311
5. Follow the dolly manufacturer'sinstructions for preparing the
vehicle and dolly for towing.
6. Release the parking brake.
7. Turn the vehicle off.
8. Open the hood.
9. Wait two minutes.
10. Disconnect the negative (-) terminal connector from the
12-volt battery.
11. Close and latch the hood.
Caution
Towing the vehicle from the rear
could damage it. Also, repairs
would not be covered by the
vehicle warranty. Never have the
vehicle towed from the rear.
Appearance Care
Exterior Care
Locks
Locks are lubricated at the factory.
Use a de-icing agent only when
absolutely necessary, and have the
locks greased after using.
Washing the Vehicle
To preserve the vehicle's finish,
wash it often and out of direct
sunlight.
Caution
Do not use petroleum-based,
acidic, or abrasive cleaning
agents as they can damage the
vehicle's paint, metal, or plastic
parts. If damage occurs, it would
not be covered by the vehicle
warranty. Approved cleaning
products can be obtained from
your dealer. Follow all
manufacturer directions regarding (Continued)

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11434431) - 2018 - crc - 2/14/18
358 Index
IndexA
Accessories andModifications . . . . . . . . . . . . . . . . . . 256
Accessory Power . . . . . . . . . . . . . . . 206
Add-On Electrical Equipment . . . 252
Additional Information OnStar . . . . . . . . . . . . . . . . . . . . . . . 352
Additional Maintenance and Care . . . . . . . . . . . . . . . . . . . . . . 325
Agreements
Trademarks and License . . . . . 184
Air Conditioning . . . . . . . . . . . . . . . . 186
Air Conditioning Regular Operation . . . . . . . . . . . . . . . . . . . . . 192
Air Filter, Passenger Compartment . . . . . . . . . . . . . . . . . 191
Air Intake . . . . . . . . . . . . . . . . . . . . . . . 191
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 190
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . . . 82
How Does an AirbagRestrain? . . . . . . . . . . . . . . . . . . . . . 75
Passenger Sensing System . . . . 77
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 75
What Will You See after an Airbag Inflates? . . . . . . . . . . . . . . . 75 Airbag System (cont'd)
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 74
Where Are the Airbags? . . . . . . . . 72
Airbags Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . . . 81
Passenger Status Indicator . . . 125
Readiness Light . . . . . . . . . . . . . . 124
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . . . 81
System Check . . . . . . . . . . . . . . . . . . 71
Alarm Vehicle Security . . . . . . . . . . . . . . . . 48
Alert Lane Change . . . . . . . . . . . . . . . . . 231
Side Blind Zone (SBZA) . . . . . . 231
All-Season Tires . . . . . . . . . . . . . . . . 279
AM-FM Radio . . . . . . . . . . . . . . . . . . . 162
Antenna
Multi-band . . . . . . . . . . . . . . . . . . . . 165
Antilock Brake System (ABS) . . . 213 Warning Light . . . . . . . . . . . . . . . . . 127
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . .311
Interior . . . . . . . . . . . . . . . . . . . . . . . . 316
Apple CarPlay and Android Auto . . . . . . . . . . . . . . . . . . 177

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