ECU CHEVROLET BOLT EV 2021 Service Manual

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
156 Driving and Operating
{Warning
Things inside the vehicle can strike
and injure people in a sudden stop or
turn, or in a crash.
.Put things in the cargo area of the
vehicle. In the cargo area, put
them as far forward as possible.
Try to spread the weight evenly.
.Never stack heavier things, like
suitcases, inside the vehicle so
that some of them are above the
tops of the seats.
.Do not leave an unsecured child
restraint in the vehicle.
.Secure loose items in the vehicle.
.Do not leave a seat folded down
unless needed.
Starting and Operating
New Vehicle Break-In
Caution
Avoid making hard stops for the first
322 km (200 mi). During this time the
new brake linings are not yet broken in.
Hard stops with new linings can mean
premature wear and earlier replacement.
Follow this breaking-in guideline every
time you get new brake linings.
Following break-in, vehicle speed and load
can be gradually increased.
Power Button
The vehicle has an electronic pushbutton
start.
The Remote Keyless Entry (RKE) transmitter
must be in the vehicle for the system to
operate. If the vehicle will not start, place
the RKE transmitter in the transmitter
pocket, inside the center console.
ON/RUN : This position is for starting and
driving. With the vehicle off, and the brake
pedal applied, pressing POWER
Oonce will
place the vehicle in ON/RUN. When the
vehicle ready light is on in the instrument
cluster, the vehicle is ready to be driven.
This could take up to 15 seconds at
extremely cold temperatures.

Chevrolet Bolt EV Owner Manual (GMNA-Localizing-U.S./Canada-
14637856) - 2021 - CRC - 10/2/20
182 Driving and Operating
The following table shows the amount of range added and time to full charge based on how
the vehicle is being charged:Level 1 (120 Volt) Level 2
(240 Volt) DC Fast
Charging
8 Amps 12 Amps 32 Amps
Range Added About 4.5 km (2.8 mi) per
hour of charge About 6.4 km
(4 mi) per hour of charge About 40 km
(25 mi) per hour of charge Up to 161 km
(100 mi) in about
30 minutes*
Time to Full Charge About 78.5 hoursAbout 55 hours About 10 hours
—
* Charger must be capable of 150 amps and
assumes the charge starts from a depleted
battery.
These time estimates are applicable to
nominal temperature ranges. In extreme hot
or cold conditions, this time may be
lengthened. A full charge will take
additional time.
The charging system may run fans and
pumps that result in sounds from the
vehicle while it is turned off. Additionally,
clicking sounds may be caused by the
electrical devices used while charging. The vehicle does not require indoor charging
area ventilation before, during, or after
charging.
The vehicle cannot be driven while the
charge cord is plugged into the vehicle.
Caution
To avoid damage to the vehicle, make
sure the charging cord plug is in good
condition, is not worn or damaged, and is
connected securely to the vehicle's
charging port. If vehicle charging is
intermittent, disconnect the cord and
(Continued)
Caution (Continued)
inspect for damage. An excessively worn
or damaged AC or DC charging cord plug
may result in an intermittent connection
and potential damage to the vehicle's
charging port.
Charging Override
A CHARGING OVERRIDE/INTERRUPTION
OCCURRED message may display to indicate
that a charging override or interruption has
occurred due to one or more of the
following events:
.Override of the charge settings by the
owner.
.Unintended interruption of AC power at
the vehicle's charge port.
.Interruption of charging by the utility
company.
There are several screens that will display
depending on the current charging status.
See Programmable Charging 090.
A loss of AC power alert may sound for a
short time if AC power is lost for over
one minute. This sound alert can be turned
off. See Vehicle Personalization 0101.

Chevrolet Bolt EV Owner Manual (GMNA-Localizing-U.S./Canada-
14637856) - 2021 - CRC - 10/2/20
Driving and Operating 193
Mounting Instructions
1. Identify an appropriate location for thecharge cord.
2. Locate a mounting support, such as a wall stud.
The appropriate height for mounting the
charge cord is 91 cm (36 in) from the
floor.
3. Mark and drill the mounting holes in awall stud or suitable structure. Stay
away from any power source.
Space the holes 18.7 cm (7 3/8 in) apart.
4. Install the mounting screws in the wall surface leaving the head of the screws
5 mm (3/16 in) from the surface.5. Securely mount the charge cord on tothe screws.
6. Connect the wall plug to the electrical outlet.
7. Connect the vehicle plug to the charge port.

Chevrolet Bolt EV Owner Manual (GMNA-Localizing-U.S./Canada-
14637856) - 2021 - CRC - 10/2/20
194 Driving and Operating
Lock Feature
A lock can be added to the vehicle plug for
additional security.
FCC Information
SeeRadio Frequency Statement 0271.
Utility Interruption of Charging
This vehicle will respond to requests through
the utility company to limit or completely
block electrical power grid usage. This
feature is inactive during DC charging.
A utility interruption of charging will
lengthen the vehicle charge time.
When electrical grid power is completely
blocked, the vehicle will delay charging until
the utility interruption has expired. The
vehicle should be left plugged in so that the
vehicle can automatically begin charging. Changing the charge mode to Immediate or
performing a delayed charging override will
not disable a utility interruption. Unplugging
and plugging the car back in will also not
disable a utility interruption.
A pop-up will appear in the infotainment
display while starting the vehicle following
any utility interruption. See
“Charging
Interrupted or Overridden Pop-Up” under
Programmable Charging 090.
A message will display on the instrument
cluster indicating that a utility interruption
has occurred.
Electrical Requirements for
Battery Charging
This vehicle is capable of being charged with
most standard vehicle charging equipment
complying with one or more of the
following:
.SAE J1772
.SAE J2847-2
.IEC 61851-1
.IEC 61851-22
.IEC 61851-23
.IEC 61851-24
.IEC 62196-1
.IEC 62196-2
.IEC 62196-3
The portable charge cord requires a
minimum circuit capacity of 120 volts and
15 amps.
Charging equipment with a rating of at least
220 volts/40 amps will provide the fastest
charging time and best charging efficiency
to recharge the high voltage battery. Always
follow the charging equipment instructions.
Contact your dealer for more information.
Caution
Do not use portable or stationary backup
generating equipment to charge the
vehicle. This may cause damage to the
vehicle's charging system. Only charge
the vehicle from utility supplied power.
Trailer Towing
General Towing Information
{Warning
Never tow a trailer with your vehicle.
It was not designed or intended to tow a
trailer.

Chevrolet Bolt EV Owner Manual (GMNA-Localizing-U.S./Canada-
14637856) - 2021 - CRC - 10/2/20
Vehicle Care 199
2. Go to the front of the vehicle and locatethe secondary release lever under the
front center of the hood. Push the
secondary hood release lever to the right
to release.3. Lift the hood and release the hood proprod from its retainer, in the front of the
engine compartment. Securely insert the
rod end into the slot marked with an
arrow, on the underside of the hood.
To close the hood: 1. Before closing the hood, be sure all filler caps are on properly, and all tools are
removed.
2. Lift the hood and remove the hood prop rod from the underside of the hood.
Return the prop rod to its retainer. The
prop rod must click into place when
returning it to the retainer to prevent
hood damage. 3. Lower the hood 20 cm (8 in) above the
vehicle and release it. Check to make
sure the hood is latched completely.
Repeat this process with additional force
if necessary.
{Warning
Do not drive the vehicle if the hood is
not latched completely. The hood could
open fully, block your vision, and cause a
crash. You or others could be injured.
Always close the hood completely before
driving.

Chevrolet Bolt EV Owner Manual (GMNA-Localizing-U.S./Canada-
14637856) - 2021 - CRC - 10/2/20
Vehicle Care 207
To remove the cover:
1. Slide a plastic tool under the cover andpush upward to unsnap.
2. Slide the cover toward the wiper blade tip to unhook it from the blade
assembly.
3. Remove the cover.
4. After wiper blade replacement, ensure that the cover hook slides into the slot
in the blade assembly.
5. Snap the cover down to secure.
To replace the wiper blade: 1. Lift the wiper arm away from the windshield.
2. Push the release lever (2) to disengagethe hook and push the wiper arm (1) out
of the blade assembly (3).
3. Push the new blade assembly securely on the wiper arm until the release lever
clicks into place.
4. Replace the wiper cover.
Windshield Replacement
Driver Assistance Systems
If the windshield needs to be replaced and
the vehicle is equipped with a front camera
sensor for the Driver Assistance Systems, a
GM replacement windshield is
recommended. The replacement windshield
must be installed according to GM
specifications for proper alignment. If it is
not, these systems may not work properly, they may display messages, or they may
not work at all. See your dealer for proper
windshield replacement.
Gas Strut(s)
This vehicle is equipped with gas strut(s) to
provide assistance in lifting and holding
open the hood/trunk/liftgate system in full
open position.
{Warning
If the gas struts that hold open the hood,
trunk, and/or liftgate fail, you or others
could be seriously injured. Take the
vehicle to your dealer for service
immediately. Visually inspect the gas
struts for signs of wear, cracks, or other
damage periodically. Check to make sure
the hood/trunk/liftgate is held open with
enough force. If struts are failing to hold
the hood/trunk/liftgate, do not operate.
Have the vehicle serviced.

Chevrolet Bolt EV Owner Manual (GMNA-Localizing-U.S./Canada-
14637856) - 2021 - CRC - 10/2/20
Vehicle Care 213
A fuse puller is in the underhood
compartment fuse block.
The vehicle may not be equipped with all of
the fuses, relays, and features shown.Fuses Usage
1 –
2 Power window rear
3 –
4 Rechargeable energy
storage system 1
5 –
7 Left high beam headlamp
8 Right high beam headlamp
9 Left low beam headlamp
10 Right low beam headlamp 11 Horn
12 –
13 Front wiper motor driver
14 Liftgate 15 Front wiper motor co-driver
16 Electronic brake control
module supply electronics Fuses
Usage
17 Rear wiper
18 Liftgate
19 Seat module front
20 Washer 22 Linear power module
23 Electronic brake control
module supply motor
24 Seat module rear
26 Transmission range control
module
27 Aeroshutter
28 Auxiliary oil pump
29 Electric brake boost motor
source
30 Front power windows
31 In-panel bussed electrical
center
32 Rear window defogger
33 Heated exterior rearview
mirror
34 Pedestrian friendly alert
function Fuses
Usage
35 –
36 –
37 Current sensor
38 Rain sensor
39 –
40 Electric brake boost (ECU)
41 Power line communication
module
42 Infant only supression
43 Window switch
44 Rechargeable energy
storage system
45 Vehicle integration control
module
46 Integrated chassis control
module
47 –
48 Integrated chassis control
module
49 Interior rearview mirror 50 –

Chevrolet Bolt EV Owner Manual (GMNA-Localizing-U.S./Canada-
14637856) - 2021 - CRC - 10/2/20
240 Vehicle Care
{Warning
An electric fan can start up even when
the propulsion system is not operating
and can injure you. Keep hands, clothing
and tools away from any underhood
electric fan.
{Warning
Using a match near a battery can cause
battery gas to explode. People have been
hurt doing this, and some have been
blinded. Use a flashlight if you need
more light.
Battery fluid contains acid that can burn
you. Do not get it on you. If you
accidentally get it in your eyes or on
your skin, flush the place with water and
get medical help immediately.
{Warning
Fans or other moving propulsion system
parts can injure you badly. Keep your
hands away from moving parts once the
propulsion system is operating.5. Connect one end of the red positive (+)
cable to the positive (+) terminal on the
discharged battery.
6. Connect the other end of the red positive (+) cable to the positive (+)
terminal of the good battery.
7. Connect one end of the black negative (–) cable to the negative (–) terminal of
the good battery.
8. Connect the other end of the black negative (–) cable to the negative (–)
grounding point for the discharged
battery.
9. Start the vehicle with the good battery.
10. Try to start the vehicle with the dead battery. If it will not start after a few
tries, it probably needs service.
Caution
If the jumper cables are connected or
removed in the wrong order, electrical
shorting may occur and damage the
vehicle. The repairs would not be covered
by the vehicle warranty. Always connect
and remove the jumper cables in the
correct order, making sure that the cables
do not touch each other or other metal. Jumper Cable Removal
Reverse the sequence exactly when
removing the jumper cables.
Towing the Vehicle
Caution
Incorrectly towing a disabled vehicle may
cause damage. The damage would not be
covered by the vehicle warranty. Do not
lash or hook to suspension components.
Use the proper straps around the tires to
secure the vehicle. Do not drag a locked
wheel/tire. Use tire skates or dollies
under any locked wheel/tire while
loading the vehicle. Do not use a sling
type lift to tow the vehicle. This could
damage the vehicle.
GM recommends a flatbed tow truck to
transport a disabled vehicle. Use ramps to
help reduce approach angles, if necessary.
A towed vehicle should have its drive wheels
off the ground. Contact Roadside Assistance
or a professional towing service if the
disabled vehicle must be towed.

Chevrolet Bolt EV Owner Manual (GMNA-Localizing-U.S./Canada-
14637856) - 2021 - CRC - 10/2/20
Vehicle Care 243
Caution (Continued)
vehicle warranty. If using a shield, only
use one that attaches to the towing
vehicle.
Dinghy Towing
Caution
If the vehicle is towed with all four
wheels on the ground, the drivetrain
components could be damaged. The
repairs would not be covered by the
vehicle warranty. Do not tow the vehicle
with all four wheels on the ground.The vehicle was not designed to be towed
with all four wheels on the ground. If the
vehicle must be towed, a dolly should be
used. See
“Dolly Towing” following.
Dolly Towing
Tow the vehicle with the two rear wheels
on the ground and the front wheels on a
dolly.
To tow the vehicle from the front with the
rear wheels on the ground:
1. Put the front wheels on the dolly.
2. Shift the transmission to P (Park). See Shifting Into Park 0158.
3. Set the parking brake.
4. Secure the vehicle to the dolly. 5. Follow the dolly manufacturer's
instructions 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.