2021 CHEVROLET BOLT EV brakes

Chevrolet Bolt EV Owner Manual (GMNA-Localizing-U.S./Canada-
14637856) - 2021 - CRC - 10/2/20
86 Instruments and Controls
{Warning
The brake system might not be working
properly if the brake system warning
light is on. Driving with the brake system
warning light on can lead to a crash.
If the light is still on after the vehicle has
been pulled off the road and carefully
stopped, have the vehicle towed for
service.
Electric Parking Brake Light
MetricEnglish
This light comes on when the parking brake
is applied. If the light continues flashing
after the parking brake is released, or while
driving, there is a problem with the Electric
Parking Brake system. A message may also
display in the Driver Information
Center (DIC).
If the light does not come on, or remains
flashing, see your dealer.
Service Electric Parking Brake
Light
The Service Electric Parking brake light
should come on briefly when starting the
vehicle. If it does not come on, have the
vehicle serviced by your dealer.
If this light stays on, there is a problem
with a system on the vehicle that is causing
the parking brake system to work at a
reduced level. The vehicle can still be driven,
but should be taken to a dealer as soon as
possible. See Electric Parking Brake 0164.
A message may also display in the Driver
Information Center (DIC).
Antilock Brake System (ABS)
Warning Light
The ABS warning light will come on briefly
when the vehicle is started. This is normal.
If the light does not come on then, have it
fixed so it will be ready to warn if there is a
problem.
If the light stays on or comes on while
driving, stop as soon as possible and turn
the vehicle off. Then start the vehicle again
to reset the system. If the light still stays
on, or comes on again while driving, the
vehicle needs service. See your dealer. If the
regular brake system warning light is not
on, the brakes will still work, but the
antilock brakes will not work. If the regular
brake system warning light is also on, the
antilock brakes will not work and there is a
problem with the regular brakes.

Chevrolet Bolt EV Owner Manual (GMNA-Localizing-U.S./Canada-
14637856) - 2021 - CRC - 10/2/20
100 Instruments and Controls
calculated based on the various vehicle
speeds recorded since the last reset of this
value. The average speed can be reset by
pressing and holding
Vwhile this display is
active.
Timer : This display can be used as a timer.
To start the timer, press
Vwhile this
display is active. The display will show the
amount of time that has passed since the
timer was last reset. To stop the timer,
press
Vbriefly while this display is active
and the timer is running. To reset the timer
to zero, press and hold
Vwhile this display
is active.
Follow Distance Indicator : The current
follow time to the vehicle ahead is displayed
as a time value on this page.
Blank Page : The Blank Page display allows
for no information to be displayed in the
cluster info display areas.
Vehicle Messages
Messages displayed on the DIC indicate the
status of the vehicle or some action that
may be needed to correct a condition.
Multiple messages may appear one after
another. The messages that do not require
immediate action can be acknowledged and
cleared by pressing
V. The messages that
require immediate action cannot be cleared
until that action is performed.
All messages should be taken seriously;
clearing the message does not correct the
problem.
If a SERVICE message appears, see your
dealer.
Follow the instructions given in the
messages. The system displays messages
regarding the following topics:
.Service Messages
.Fluid Levels
.Vehicle Security
.Brakes
.Ride Control Systems
.Driver Assistance Systems
.Cruise Control
.Lighting and Bulb Replacement
.Wiper/Washer Systems
.Doors and Windows
.Seat Belts
.Airbag Systems
.Propulsion and Transmission
.Tire Pressure
.Battery
Propulsion Power Messages
PROPULSION POWER IS REDUCED
This message displays when the vehicle's
propulsion power is reduced. A reduction in
propulsion power can affect the vehicle's
ability to accelerate. If this message is on,
but there is no observed reduction in
performance, proceed to your destination.
Under certain conditions the performance
may be reduced the next time the vehicle is
driven. The vehicle may be driven while this
message is on, but maximum acceleration
and speed may be reduced. Anytime this
message stays on, or displays repeatedly,
the vehicle should be taken to your dealer
for service as soon as possible.
This message is commonly displayed when
the high voltage battery charge level is low.
The vehicle is limiting power to maximize
range.
This message can display when the vehicle
is parked during extreme cold conditions
without being plugged in. While driving the

Chevrolet Bolt EV Owner Manual (GMNA-Localizing-U.S./Canada-
14637856) - 2021 - CRC - 10/2/20
Instruments and Controls 101
vehicle with this message displayed, the
vehicle speed may be reduced until the high
voltage battery is conditioned.
Under certain operating conditions,
propulsion will be disabled. Try restarting
after the ignition has been off for
30 seconds.
Vehicle Speed Messages
SPEED LIMITED TO XXX KM/H (MPH)
This message shows that the vehicle speed
has been limited to the speed displayed. The
limited speed is a protection for various
propulsion and vehicle systems, such as
lubrication, thermal, brakes, suspension,
Teen Driver if equipped, or tires.
Vehicle Personalization
Use the audio system controls to access the
personalization menus for customizing
vehicle features.
The following are all possible personalization
features. Depending on the vehicle, some
may not be available.
{:Press to access the Home Page.
T:Touch to access the Icon view.
Y: Drag the scroll bar to navigate the list.
0 :Touch to exit or return to the
previous screen or menu.
To access the menu:
1. Touch
T.
2. Touch Settings.
3. Touch the menu item to select it.
Each of the menus is detailed in the
following information.
Personalization Menu
The following list of menu items may be
available:
.Time and Date
.Rear Seat Reminder
.Language (Language)
.Teen Driver
.Radio Settings
.Vehicle
.Devices
.Device Remote Access
.Bluetooth Phone
.Apple CarPlay
.Android Auto
.USB Auto Launch
.Wi-Fi
.Display Settings
.Rear Camera
.Return to Factory Settings
.Audible Touch Feedback
.Text Scroll
.Software Information
Each menu is detailed in the following
information.
Time and Date
Manually set the time and date. See Clock
0 76.
Rear Seat Reminder
This message displays under certain
conditions indicating there may be an item
or passenger in the rear seat. Check before
exiting the vehicle.
This feature allows for a chime and a
message when the rear door has been
opened before or during operation of the
vehicle.
Select Off or On.
Language (Language)
Select Language, then select from the
available language(s).

Chevrolet Bolt EV Owner Manual (GMNA-Localizing-U.S./Canada-
14637856) - 2021 - CRC - 10/2/20
Infotainment System 133
transmitter key is no longer
registered and a confirmation
message displays.
If a Teen Driver transmitter key and a
non-Teen Driver transmitter key are both
present at start up, the vehicle will
recognize the non-Teen Driver transmitter
key to start the vehicle. The Teen Driver
settings will not be active.
Manage Settings
Use the PIN to change the following
settings:
Audio Volume Limit : Allows a maximum
radio volume to be set. Turn the audio
volume limit On or Off, and if equipped,
choose the maximum level for the audio
volume.
Teen Driver Speed Warning : Allows for
setting a visual and audible warning when a
certain speed is exceeded. The speed
warning is selectable from 64 km/h
(40 mph) to 120 km/h (75 mph). The speed
warning does not limit the speed of the
vehicle.
Teen Driver Speed Limiter (If Equipped) :
Allows the maximum speed of the vehicle to
be limited to 137 km/h (85 mph). When the
speed limiter is turned On and the vehicle is started with a Teen Driver key, the DIC
displays a message that the top speed is
limited to 137 km/h (85 mph).
When Teen Driver is Active:
.The radio will mute when the driver seat
belt is not fastened, and in some vehicles,
when the right front passenger seat belt
is not fastened. The audio from any
device paired to the vehicle will also be
muted.
.Certain electronic devices placed on the
front passenger seat could cause the
passenger sensing system to falsely sense
an unbuckled front passenger and mute
the radio. See
Passenger Sensing System
0 44.
.Some safety systems, such as Automatic
Emergency Braking, if equipped and
supported, cannot be turned off.
.The gap setting for the Forward Collision
Alert, if equipped, cannot be changed.
Report Card
The vehicle owner must secure the driver’s
consent to record certain vehicle data when
the vehicle is driven with a registered Teen
Driver key. There is one Report Card per
vehicle. Data is not recorded when Teen
Driver is not active. The Report Card data is collected from the
time Teen Driver is activated or the last
time the Report Card was reset. The
following items may be recorded:
.Distance Driven
–the total distance
driven.
.Maximum Speed –the maximum vehicle
speed recorded.
.Overspeed Warnings –the number of
times the speed warning setting was
exceeded.
.Forward Collision Alerts –the number of
times the driver was notified when
approaching a vehicle ahead too quickly
and at potential risk for a crash.
.Forward Collision Avoidance Braking –the
number of times the vehicle detected that
a forward collision was imminent and
applied the brakes. Also referred to as
Automatic Emergency Braking.
.Stability Control –the number of events
which required the use of electronic
stability control.
.ABS Active –the number of Antilock
Brake System activations.
.Tailgating Alerts –the number of times
the driver was alerted for following the
vehicle ahead too closely.

Chevrolet Bolt EV Owner Manual (GMNA-Localizing-U.S./Canada-
14637856) - 2021 - CRC - 10/2/20
146 Driving and Operating
Driving and Operating
Driving Information
Driving for Better Energy Efficiency . . . . 147
Distracted Driving . . . . . . . . . . . . . . . . . . . . . 148
Defensive Driving . . . . . . . . . . . . . . . . . . . . . . 148
Impaired Driving . . . . . . . . . . . . . . . . . . . . . . 149
Control of a Vehicle . . . . . . . . . . . . . . . . . . . 149
Braking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . 150
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . 150
Driving on Wet Roads . . . . . . . . . . . . . . . . . . 151
Hill and Mountain Roads . . . . . . . . . . . . . . . 151
Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . . 152
If the Vehicle Is Stuck . . . . . . . . . . . . . . . . . . 152
Vehicle Load Limits . . . . . . . . . . . . . . . . . . . . 153
Starting and Operating
New Vehicle Break-In . . . . . . . . . . . . . . . . . . 156
Power Button . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Starting and Stopping the Vehicle . . . . . 157
Retained Accessory Power (RAP) . . . . . . . 158
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . 158
Shifting out of Park . . . . . . . . . . . . . . . . . . . 159
Extended Parking . . . . . . . . . . . . . . . . . . . . . . 159
Electric Vehicle Operating Modes
Driver Selected Operating Modes . . . . . . 159
Electric Drive Unit
Electric Drive Unit . . . . . . . . . . . . . . . . . . . . . 160
One-Pedal Driving . . . . . . . . . . . . . . . . . . . . . 163
Brakes
Antilock Brake System (ABS) . . . . . . . . . . . 163
Electric Parking Brake . . . . . . . . . . . . . . . . . . 164
Brake Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Hill Start Assist (HSA) . . . . . . . . . . . . . . . . . . 165
Regenerative Braking . . . . . . . . . . . . . . . . . . 165
Ride Control Systems
Traction Control/Electronic StabilityControl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . 167
Driver Assistance Systems
Driver Assistance Systems . . . . . . . . . . . . . 169
Assistance Systems for Parking orBacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Assistance Systems for Driving . . . . . . . . . 173
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174
Automatic Emergency Braking (AEB) . . . 175
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176
Side Blind Zone Alert (SBZA) . . . . . . . . . . . 178
Lane Change Alert (LCA) . . . . . . . . . . . . . . . 178
Lane Keep Assist (LKA) . . . . . . . . . . . . . . . . . 179
Charging
When to Charge . . . . . . . . . . . . . . . . . . . . . . . 181
Plug-In Charging . . . . . . . . . . . . . . . . . . . . . . . 181
Delayed Charging Override . . . . . . . . . . . . 185
Charging Status Feedback . . . . . . . . . . . . . 186
Charge Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Utility Interruption of Charging . . . . . . . 194
Electrical Requirements for Battery Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
Trailer Towing
General Towing Information . . . . . . . . . . . 194
Conversions and Add-Ons
Add-On Electrical Equipment . . . . . . . . . . . 195

Chevrolet Bolt EV Owner Manual (GMNA-Localizing-U.S./Canada-
14637856) - 2021 - CRC - 10/2/20
Driving and Operating 151
.Slow down and adjust your driving
according to weather conditions. Stopping
distance can be longer and vehicle control
can be affected when traction is reduced
by water, snow, ice, gravel, or other
material on the road. Learn to recognize
warning clues—such as enough water,
ice, or packed snow on the road to make
a mirrored surface —and slow down
when you have any doubt.
.Try to avoid sudden steering, acceleration,
or braking, including reducing vehicle
speed by shifting to a lower gear. Any
sudden changes could cause the tires to
slide.
Remember: Antilock brakes help avoid only
the braking skid.
Driving on Wet Roads
Rain and wet roads can reduce vehicle
traction and affect your ability to stop and
accelerate. Always drive slower in these
types of driving conditions and avoid driving
through large puddles and deep-standing or
flowing water.
{Warning
Wet brakes can cause crashes. They
might not work as well in a quick stop
and could cause pulling to one side. You
could lose control of the vehicle.
After driving through a large puddle of
water or a car/vehicle wash, lightly apply
the brake pedal until the brakes work
normally.
Flowing or rushing water creates strong
forces. Driving through flowing water
could cause the vehicle to be carried
away. If this happens, you and other
vehicle occupants could drown. Do not
ignore police warnings and be very
cautious about trying to drive through
flowing water.
Hydroplaning
Hydroplaning is dangerous. Water can build
up under the vehicle's tires so they actually
ride on the water. This can happen if the
road is wet enough and you are going fast
enough. When the vehicle is hydroplaning, it
has little or no contact with the road. There is no hard and fast rule about
hydroplaning. The best advice is to slow
down when the road is wet.
Other Rainy Weather Tips
Besides slowing down, other wet weather
driving tips include:
.Allow extra following distance.
.Pass with caution.
.Keep windshield wiping equipment in
good shape.
.Keep the windshield washer fluid reservoir
filled.
.Have good tires with proper tread depth.
.Turn off cruise control.
Hill and Mountain Roads
Driving on steep hills or through mountains
is different than driving on flat or rolling
terrain.
.Keep the vehicle serviced and in good
shape.
.Check all fluid levels and brakes, tires,
cooling system, and electric drive unit.
.Keep the vehicle in gear when going
down steep or long hills.

Chevrolet Bolt EV Owner Manual (GMNA-Localizing-U.S./Canada-
14637856) - 2021 - CRC - 10/2/20
152 Driving and Operating
{Warning
Coasting downhill in N (Neutral) or with
the vehicle turned off is dangerous. The
brakes will have to do all the work of
slowing down the vehicle and could
become too hot. Hot brakes may not be
able to slow the vehicle enough to
maintain speed and control. You could
crash. Always have the vehicle running
and in gear when going downhill. This
will allow the electric drive unit to assist
in slowing and maintaining speed.
.Drive at speeds to keep the vehicle in its
own lane. Do not swing wide or cross the
center line.
.Be alert on top of hills. Something could
be in your lane (e.g., stalled car, crash).
.Pay attention to special road signs (e.g.,
falling rocks area, winding roads, long
grades, passing or no-passing zones) and
take appropriate action.
Winter Driving
Driving on Snow or Ice
Snow or ice between the tires and the road
creates less traction or grip, so drive
carefully. Wet ice can occur at about 0 °C
(32 °F) when freezing rain begins to fall.
Avoid driving on wet ice or in freezing rain
until roads can be treated.
For Slippery Road Driving:
.Recommend using D (Drive) in slippery
conditions.
.Accelerate gently. Accelerating too quickly
causes the wheels to spin and makes the
surface under the tires slick.
.Turn on the Traction Control
System (TCS).
.The Antilock Brake System (ABS) improves
vehicle stability during hard stops, but
the brakes should be applied sooner than
when on dry pavement.
.Allow greater following distance and
watch for slippery spots. Icy patches can
occur on otherwise clear roads in shaded
areas. The surface of a curve or an
overpass can remain icy when thesurrounding roads are clear. Avoid sudden
steering maneuvers and braking while
on ice.
.Turn off cruise control.
.Avoid using Regen on Demand paddle.
Blizzard Conditions
Being stuck in snow can be a serious
situation. Stay with the vehicle unless there
is help nearby. If possible, use Roadside
Assistance. See
Roadside Assistance Program
0 266. To get help and keep everyone in
the vehicle safe:
.Turn on the hazard warning flashers.
.Tie a red cloth to an outside mirror.
To save energy, run the vehicle for only
short periods as needed to warm the vehicle
and then shut the vehicle off and partially
close the window. Moving about to keep
warm also helps.
If the Vehicle Is Stuck
Slowly and cautiously spin the wheels to
free the vehicle when stuck in sand, mud,
ice, or snow.

Chevrolet Bolt EV Owner Manual (GMNA-Localizing-U.S./Canada-
14637856) - 2021 - CRC - 10/2/20
Driving and Operating 157
Service Mode
This power mode is available for service and
diagnostics, and to verify the proper
operation of the service vehicle soon light as
may be required for emission inspection
purposes. With the vehicle off, and the
brake pedal not applied, pressing and
holding POWER
Ofor more than
five seconds will place the vehicle in Service
Mode. The instruments and audio systems
will operate as they do in ON/RUN, but the
vehicle will not be able to be driven. The
propulsion system will not start in Service
Mode. Press POWER
Oagain to turn the
vehicle off.
Caution
Placing the vehicle in Service Mode will
use the 12-volt battery. Do not use
Service Mode for an extended period,
or the vehicle may not start.
STOPPING THE VEHICLE/OFF : To turn the
vehicle off, apply the brakes, press the
button on top of the shift lever to shift to
P (Park) and press POWER
O. Alternatively, apply the brakes and press
POWER
O. The electric drive unit will shift
to P (Park) then shut off automatically.
Retained Accessory Power (RAP) will remain
active until the driver door is opened.
If the vehicle must be shut off in an
emergency:
1. Brake using a firm and steady pressure. Do not pump the brakes repeatedly. This
may deplete power assist, requiring
increased brake pedal force.
2. Shift the vehicle to N (Neutral). This can be done while the vehicle is moving.
After shifting to N (Neutral), firmly apply
the brakes and steer the vehicle to a
safe location.
3. Come to a complete stop, shift to P (Park), and turn the vehicle off by
pressing POWER
O.
4. Set the parking brake.
{Warning
Turning off the vehicle while moving may
disable the airbags. While driving, only
shut the propulsion system off in an
emergency. If the vehicle cannot be pulled over, and
must be shut off while driving, press and
hold POWER
Ofor longer than two seconds,
or press twice in five seconds.
Starting and Stopping the Vehicle
Starting Procedure
Press the P (Park) button on the shift lever,
or move the shift lever into N (Neutral). The
propulsion system will not start in any
other position.
Caution
Do not try to shift to P (Park) if the
vehicle is moving or the electric drive unit
could be damaged. Shift to P (Park) only
when the vehicle is stopped.
Caution
If you add electrical parts or accessories,
you could change the way the vehicle
operates. Any resulting damage would
not be covered by the vehicle warranty.
The Remote Keyless Entry (RKE) transmitter
must be in the vehicle. Press the brake
pedal, then press and release POWER
O.