service CHEVROLET BOLT EV 2021 Service Manual

Chevrolet Bolt EV Owner Manual (GMNA-Localizing-U.S./Canada-
14637856) - 2021 - CRC - 10/2/20
Driving and Operating 175
Tailgating Alert
The vehicle ahead indicator will display
amber when you are following a detected
vehicle ahead much too closely.
Selecting the Alert Timing
The Collision Alert control is on the steering
wheel. Press
[to set the FCA timing to
far, medium, or near. The first button press
shows the current control setting on the
DIC. Additional button presses will change
this setting. The chosen setting will remain
until it is changed and will affect the timing
of both the Collision Alert and the Tailgating
Alert features. The timing of both alerts will
vary based on vehicle speed. The faster the
vehicle speed, the farther away the alert will
occur. Consider traffic and weather
conditions when selecting the alert timing.
The range of selectable alert timing may not
be appropriate for all drivers and driving
conditions.
Following Distance Indication
The following distance to a moving vehicle
you are following is indicated in following
time in seconds on the Driver Information
Center (DIC). The minimum following time is 0.5 seconds
away. If there is no vehicle detected ahead,
or the vehicle ahead is out of sensor range,
dashes will be displayed.
Unnecessary Alerts
FCA may provide unnecessary alerts to
turning vehicles, vehicles in other lanes,
objects that are not vehicles, or shadows.
These alerts are normal operation and the
vehicle does not need service.
Cleaning the System
If the FCA system does not seem to operate
properly, this may correct the issue:
.Clean the outside of the windshield in
front of the rearview mirror.
.Clean the entire front of the vehicle.
.Clean the headlamps.
Automatic Emergency
Braking (AEB)
If the vehicle has Forward Collision Alert
(FCA), it also has AEB, which includes
Intelligent Brake Assist (IBA). When the
system detects a vehicle ahead in your path
that is traveling in the same direction that
you may be about to crash into, it can
provide a boost to braking or automaticallybrake the vehicle. This can help avoid or
lessen the severity of crashes when driving
in a forward gear. Depending on the
situation, the vehicle may automatically
brake moderately or hard. This automatic
emergency braking can only occur if a
vehicle is detected. This is shown by the FCA
vehicle ahead indicator being lit. See
Forward Collision Alert (FCA) System
0174.
The system works when driving in a forward
gear between 8 km/h (5 mph) and 80 km/h
(50 mph). It can detect vehicles up to
approximately 60 m (197 ft).
{Warning
AEB is an emergency crash preparation
feature and is not designed to avoid
crashes. Do not rely on AEB to brake the
vehicle. AEB will not brake outside of its
operating speed range and only responds
to detected vehicles.
AEB may not:
.Detect a vehicle ahead on winding or
hilly roads.
.Detect all vehicles, especially vehicles
with a trailer, tractors, muddy
vehicles, etc. (Continued)

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176 Driving and Operating
Warning (Continued)
.Detect a vehicle when weather limits
visibility, such as in fog, rain, or snow.
.Detect a vehicle ahead if it is partially
blocked by pedestrians or other
objects.
Complete attention is always required
while driving, and you should be ready to
take action and apply the brakes and/or
steer the vehicle to avoid crashes.
AEB may slow the vehicle to a complete
stop to try to avoid a potential crash. If this
happens, AEB may engage the Electric
Parking Brake (EPB) to hold the vehicle at a
stop. Release the EPB or firmly press the
accelerator pedal.
{Warning
AEB may automatically brake the vehicle
suddenly in situations where it is
unexpected and undesired. It could
respond to a turning vehicle ahead,
guardrails, signs, and other non-moving
objects. To override AEB, firmly press the
accelerator pedal, if it is safe to do so.
Intelligent Brake Assist (IBA)
IBA may activate when the brake pedal is
applied quickly by providing a boost to
braking based on the speed of approach and
distance to a vehicle ahead.
Minor brake pedal pulsations or pedal
movement during this time is normal and
the brake pedal should continue to be
applied as needed. IBA will automatically
disengage only when the brake pedal is
released.
{Warning
IBA may increase vehicle braking in
situations when it may not be necessary.
You could block the flow of traffic. If this
occurs, take your foot off the brake pedal
and then apply the brakes as needed.
AEB and IBA can be disabled through vehicle
personalization. See “Collision/Detection
Systems” underVehicle Personalization
0 101.
A system unavailable message may
display if:
.The front of the vehicle or windshield is
not clean.
.Heavy rain or snow is interfering with
object detection.
.There is a problem with the StabiliTrak
system.
The AEB system does not need service.
Front Pedestrian Braking (FPB)
System
If equipped, the FPB system may help avoid
or reduce the harm caused by front-end
crashes with nearby pedestrians when
driving in a forward gear. FPB displays an
amber indicator,
~, when a pedestrian is
detected ahead. When approaching a
detected pedestrian too quickly, FPB
provides a red flashing alert on the
windshield and rapidly beeps. FPB can
provide a boost to braking or automatically
brake the vehicle. This system includes
Intelligent Brake Assist (IBA), and the
Automatic Emergency Braking (AEB) System
may also respond to pedestrians. See
Automatic Emergency Braking (AEB) 0175.
The FPB system can detect and alert to
pedestrians in a forward gear at speeds
between 8 km/h (5 mph) and 80 km/h
(50 mph). During daytime driving, the
system detects pedestrians up to a distance

Chevrolet Bolt EV Owner Manual (GMNA-Localizing-U.S./Canada-
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178 Driving and Operating
{Warning
FPB may alert or automatically brake the
vehicle suddenly in situations where it is
unexpected and undesired. It could falsely
alert or brake for objects similar in shape
or size to pedestrians, including shadows.
This is normal operation and the vehicle
does not need service. To override
Automatic Braking, firmly press the
accelerator pedal, if it is safe to do so.
Automatic Braking can be disabled through
vehicle personalization. See “Front Pedestrian
Detection” in“Collision/Detection Systems”
under Vehicle Personalization 0101.
Cleaning the System
If FPB does not seem to operate properly,
cleaning the outside of the windshield in
front of the rearview mirror may correct the
issue.
Side Blind Zone Alert (SBZA)
If equipped, the SBZA system is a
lane-changing aid that assists drivers with
avoiding crashes that occur with moving
vehicles in the side blind zone (or spot)
areas. When the vehicle is in a forward gear, the left or right side mirror display will light
up if a moving vehicle is detected in that
blind zone. If the turn signal is activated and
a vehicle is also detected on the same side,
the display will flash as an extra warning
not to change lanes. Since this system is
part of the Lane Change Alert (LCA) system,
read the entire LCA section before using this
feature.
Lane Change Alert (LCA)
If equipped, the LCA system is a
lane-changing aid that assists drivers with
avoiding lane change crashes that occur with
moving vehicles in the side blind zone (or
spot) areas or with vehicles rapidly
approaching these areas from behind. The
LCA warning display will light up in the
corresponding outside mirror and will flash
if the turn signal is on.
{Warning
LCA does not alert the driver to vehicles
outside of the system detection zones,
pedestrians, bicyclists, or animals. It may
not provide alerts when changing lanes
under all driving conditions. Failure to use
proper care when changing lanes may
(Continued)
Warning (Continued)
result in injury, death, or vehicle damage.
Before making a lane change, always
check mirrors, glance over your shoulder,
and use the turn signals.
LCA Detection Zones
1. SBZA Detection Zone
2. LCA Detection Zone
The LCA sensor covers a zone of
approximately one lane over from both
sides of the vehicle, or 3.5 m (11 ft). The
height of the zone is approximately between
0.5 m (1.5 ft) and 2 m (6 ft) off the ground.
The Side Blind Zone Alert (SBZA) warning
area starts at approximately the middle of
the vehicle and goes back 5 m (16 ft). Drivers

Chevrolet Bolt EV Owner Manual (GMNA-Localizing-U.S./Canada-
14637856) - 2021 - CRC - 10/2/20
Driving and Operating 179
are also warned of vehicles rapidly
approaching from up to 70 m (230 ft) behind
the vehicle.
How the System Works
The LCA symbol lights up in the side mirrors
when the system detects a moving vehicle
in the next lane over that is in the side
blind zone or rapidly approaching that zone
from behind. A lit LCA symbol indicates it
may be unsafe to change lanes. Before
making a lane change, check the LCA
display, check mirrors, glance over your
shoulder, and use the turn signals.
Left Side MirrorDisplayRight Side Mirror Display
When the vehicle is started, both outside
mirror LCA displays will briefly come on to
indicate the system is operating. When the
vehicle is in a forward gear, the left or right
side mirror display will light up if a moving
vehicle is detected in the next lane over in
that blind zone or rapidly approaching that zone. If the turn signal is activated in the
same direction as a detected vehicle, this
display will flash as an extra warning not to
change lanes.
LCA can be disabled through vehicle
personalization. See
“Collision/
Detection Systems” underVehicle
Personalization 0101. If LCA is disabled by
the driver, the LCA mirror displays will not
light up.
When the System Does Not Seem to
Work Properly
The LCA system requires some driving for
the system to calibrate to maximum
performance. This calibration may occur
more quickly if the vehicle is driven on a
straight highway road with traffic and
roadside objects (e.g., guardrails, barriers).
LCA displays may not come on when
passing a vehicle quickly or for a stopped
vehicle. LCA may alert to objects attached to
the vehicle, such as a bicycle, or object
extending out to either side of the vehicle.
Attached objects may also interfere with the
detection of vehicles. This is normal system
operation; the vehicle does not need service. LCA may not always alert the driver to
vehicles in the next lane over, especially in
wet conditions or when driving on sharp
curves. The system does not need to be
serviced. The system may light up due to
guardrails, signs, trees, shrubs, and other
non-moving objects. This is normal system
operation; the vehicle does not need service.
LCA may not operate when the LCA sensors
in the left or right corners of the rear
bumper are covered with mud, dirt, snow,
ice, or slush, or in heavy rainstorms. For
cleaning instructions, see "Washing the
Vehicle" under
Exterior Care0244. If the
DIC still displays the system unavailable
message after cleaning both sides of the
vehicle toward the rear corners of the
vehicle, see your dealer.
If the LCA displays do not light up when
moving vehicles are in the side blind zone or
rapidly approaching this zone and the
system is clean, the system may need
service. Take the vehicle to your dealer.
Lane Keep Assist (LKA)
If equipped, LKA may help avoid crashes due
to unintentional lane departures. This
system uses a camera to detect lane
markings between 60 km/h (37 mph) and

Chevrolet Bolt EV Owner Manual (GMNA-Localizing-U.S./Canada-
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Driving and Operating 181
Aamber if the vehicle crosses a
detected lane marking. Additionally, there
may be three beeps, or the driver seat may
pulse three times, on the right or left,
depending on the lane departure direction.
Take Steering
The LKA system does not continuously steer
the vehicle. If LKA does not detect active
driver steering, an alert and chime may be
provided. Steer the vehicle to dismiss. LKA
may become temporarily unavailable after
repeated take steering alerts.
When the System Does Not Seem to
Work Properly
The system performance may be
affected by:
.Close vehicles ahead.
.Sudden lighting changes, such as when
driving through tunnels.
.Banked roads.
.Roads with poor lane markings, such as
two-lane roads.
If the LKA system is not functioning
properly when lane markings are clearly
visible, cleaning the windshield may help. A camera blocked message may display if
the camera is blocked. Some driver
assistance systems may have reduced
performance or not work at all. An LKA or
LDW unavailable message may display if the
systems are temporarily unavailable. This
message could be due to a blocked camera.
The LKA system does not need service. Clean
the outside of the windshield behind the
rearview mirror.
LKA assistance and/or LDW alerts may occur
due to tar marks, shadows, cracks in the
road, temporary or construction lane
markings, or other road imperfections. This
is normal system operation; the vehicle does
not need service. Turn LKA off if these
conditions continue.
Charging
When to Charge
When the high voltage battery is getting
low, charging messages may display.
The CHARGE VEHICLE SOON message
indicates that the driving range is low and
the vehicle needs to be charged soon. As the
charge level drops, the PROPULSION POWER
IS REDUCED message is displayed and the
accelerator pedal response is reduced. Inaddition, the remaining range value will
change to LOW indicating the vehicle should
be charged immediately.
When the energy is fully depleted, the OUT
OF ENERGY, CHARGE VEHICLE NOW message
displays and the vehicle slows to a stop.
Brake and steering assist will still operate.
Once the vehicle has stopped, turn the
vehicle off. See
Propulsion Power Messages
0 100.
Plug-In Charging
This section explains the process for
charging the high voltage battery. Do not
allow the vehicle to remain in temperature
extremes for long periods without being
driven or plugged in. Plug the vehicle in
when temperatures are below 0 °C (32 °F)
and above 32 °C (90 °F) to maximize high
voltage battery life.
Charge times will vary based on battery
condition, charge level, and outside
temperature. See Programmable Charging
0 90 for charge mode selection.
If equipped, the vehicle can be charged
using DC charging equipment typically found
at service stations and other public
locations.

Chevrolet Bolt EV Owner Manual (GMNA-Localizing-U.S./Canada-
14637856) - 2021 - CRC - 10/2/20
Driving and Operating 187
Charging Status IndicatorSoundAction/Reason
Short Flashing Green (flash
rate increases from one to
four as the battery charges) One audible chirp
Vehicle is charging.
Long Flashing Green Two audible chirps Charging is delayed by Programmable Charging or by
a total utility interruption, if equipped. Charging will
begin later. See Utility Interruption of Charging 0194.
Short Flashing Green (one to
four flashes depending on
charge level) Two audible chirps
Vehicle is charging but will be delayed by
Programmable Charging at least once before the
charge is complete.
Solid Green None Charging is complete.
Yellow (upon plug-in) None Charge cord is OK and the vehicle is preparing to
charge.
Yellow (for extended time
period after plug-in) None
Charge cord is OK, but the vehicle is not charging.
This may be due to a total utility interruption, and
charging will begin later. This may also occur if the
vehicle has detected a high voltage charging system
fault. See Utility Interruption of Charging 0194 or
Service Vehicle Soon Light 085.
Short Flashing Green (from
one to four flashes
depending on charge level)
or Long Flashing Green Four audible chirps
Insufficient time to fully charge by departure time
due to the selected rate preference.
To increase the battery state of charge at the
departure time, perform a delayed charging override.
See Delayed Charging Override 0185.

Chevrolet Bolt EV Owner Manual (GMNA-Localizing-U.S./Canada-
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188 Driving and Operating
Charging Status IndicatorSoundAction/Reason
None (upon plug-in) None Check charge cord connection.
None (after Green or Yellow
CSI observed) None
Check charge cord connection. If connection is good,
this may be due to a power failure or a total utility
interruption, and charging will begin later. This may
also occur if the vehicle has detected a high voltage
charging system fault. See Utility Interruption of
Charging 0194 or
Service Vehicle Soon Light 085.
None Repeated audible chirps
To disable this feature, see “Charge Power Loss Alert”
under Vehicle Personalization 0101.
To stop this alert, do one of the following:
.Unplug the charge cord.
.PressKon the RKE transmitter.
.Press and hold7on the RKE transmitter, then
press again to stop the panic alarm.
.Press the horn pad. Electricity was interrupted before charging was
complete. Repeated chirps will stop if power is
restored within 90 seconds.
None Three audible chirps Charge port door is open.

Chevrolet Bolt EV Owner Manual (GMNA-Localizing-U.S./Canada-
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Driving and Operating 189
Charge Cord
IMPORTANT SAFETY INSTRUCTIONS
This symbol indicates risk of electrical shock
if misused.
SeeRadio Frequency Statement 0271.
A portable charge cord used to charge the
vehicle high voltage battery is stored under
the load floor in the rear cargo area.
1. Wall Plug
2. Status Indicators
3. Vehicle Plug
4. Release Button
Important Information about Portable Electric
Vehicle Charging
.Charging an electric vehicle can stress a
building’s electrical system more than a
typical household appliance.
.Before plugging into any electrical outlet,
have a qualified electrician inspect and
verify the electrical system (electrical
outlet, wiring, junctions, and protection
devices) for heavy-duty service at a
12 amp continuous load.
.Electrical outlets may wear out with
normal usage or may be damaged over
time, making them unsuitable for electric
vehicle charging.
.Check the electrical outlet/plug while
charging and discontinue use if the
electrical outlet/plug is hot, then have the
electrical outlet serviced by a qualified
electrician.
.When outdoors, plug into an electrical
outlet that is weatherproof while in use.
.Mount the charge cord to reduce strain
on the electrical outlet/plug.
.Do not place the charge cord in a position
where it is expected to be submerged in
water.
{Danger
Improper use of portable electric vehicle
charge cords may cause a fire, electrical
shock, or burns, and may result in
damage to property, serious injury,
or death.
.Do not use extension cords,
multi-outlet power strips, splitters,
grounding adaptors, surge protectors,
or similar devices.
.Do not use an electrical outlet that is
worn or damaged, or will not hold the
plug firmly in place.
.Do not use an electrical outlet that is
not properly grounded.
.Do not use an electrical outlet that is
on a circuit with other electrical loads.

Chevrolet Bolt EV Owner Manual (GMNA-Localizing-U.S./Canada-
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Driving and Operating 191
OPSymbol Fault/Condition/Event
OSolid Green(Off (No Light)@No Faults: The charge cord is receiving power from the electrical outlet
and is ready to supply it to the vehicle.
nFlashing GreenOSolid RedR pb
Electrical Outlet/Plug Fault: The charge cord has detected that the
electrical outlet/plug overheated. Electrical outlets may wear out with
normal usage or may be damaged over time, making them unsuitable for
electric vehicle charging. Do not use an electrical outlet that is worn,
damaged, or one that will not hold the plug firmly in place. Use another
electrical outlet or have the electrical outlet serviced by a qualified
electrician. Reset the charge cord by unplugging the charge cord from the
electrical outlet and re-plugging it.
(Off (No Light)OSolid RedR o
Electrical System Fault: The charge cord has detected a missing or
improper ground within the building's electrical system. Do not use an
electrical outlet that is not properly grounded. Use another electrical outlet
or have a qualified electrician inspect and verify the building's electrical
system.
(Off (No Light)nFlashing RedRb
Vehicle Fault: The charge cord ground-fault circuit interrupter (GFCI) has
tripped. Ensure that there is no physical damage to the charge cord, and
that the vehicle plug is seated completely and making a good connection.
Reset the charge cord by unplugging it from the electrical outlet and
re-plugging it. If the fault remains, see an authorized dealer for service.

Chevrolet Bolt EV Owner Manual (GMNA-Localizing-U.S./Canada-
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192 Driving and Operating
OPSymbol Fault/Condition/Event
OSolid GreennFlashing RedR m
Charge Cord Fault: The charge cord has detected a potential problem with
the charge cord. Reset the charge cord by unplugging it from the electrical
outlet and re-plugging it. If the fault remains, see an authorized dealer for
service.
If no status indicators are lit, ensure the
electrical outlet is powered.
Charge Level Selection
Charge level selection can be made using
the Charge Mode tab on the Charging
screen on the infotainment display. See
“Portable Cord Limit Selection” under
Programmable Charging 090.
{Warning
Using a charge level that exceeds the
electrical circuit or electrical outlet
capacity may start a fire or damage the
electrical circuit. Use the lowest charge
level until a qualified electrician inspects
(Continued)
Warning (Continued)
the electrical circuit capacity. Use the
lowest charge level if the electrical circuit
or electrical outlet capacity is not known.
Grounding Instructions
The charge circuit must be grounded. If this
charge circuit should malfunction or break
down, grounding provides a path of least
resistance for electric current to reduce the
risk of electric shock. This product is
equipped with a cord that has an equipment
grounding conductor and a grounding plug.
The plug must be plugged into an
appropriate outlet that is properly installed
and grounded in accordance with all local
codes and ordinances.
{Warning
Improper connection of the charge cord
ground may cause electrical shock. Check
with a qualified electrician if there is
doubt as to whether the charge circuit is
properly grounded. Do not modify the
plug provided with the product. If it will
not fit the electrical outlet, have a proper
electrical outlet installed by a qualified
electrician.