coolant CHEVROLET BOLT EV 2023 Owners Manual

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada-
16404388) - 2023 - CRC - 3/7/22
Keys, Doors, and Windows 15
Conditions in Which Remote Start Will
Not Work
The remote vehicle start feature will not
operate if:
.The remote key is in the vehicle.
.The vehicle is on.
.The hood is not closed.
.The hazard warning flashers are on.
.The electric drive unit coolant
temperature is too high.
.Two remote vehicle starts, or a single
remote start with an extension, have
already been used.
.The vehicle is not in P (Park).
Door Locks
{Warning
Unlocked doors can be dangerous.
.Passengers, especially children, can
easily open the doors and fall out of a
moving vehicle. The doors can be
unlocked and opened while the vehicle
is moving. The chance of being thrown
out of the vehicle in a crash is
increased if the doors are not locked.(Continued)
Warning (Continued)
So, all passengers should wear seat
belts properly and the doors should be
locked whenever the vehicle is driven.
.Young children who get into unlocked
vehicles may be unable to get out.
A child can be overcome by extreme
heat and can suffer permanent injuries
or even death from heat stroke.
Always lock the vehicle whenever
leaving it.
.Outsiders can easily enter through an
unlocked door when you slow down
or stop the vehicle. Locking the doors
can help prevent this from happening.
To lock or unlock the doors from outside the
vehicle:
.Use the key in the driver door to lock and
unlock the door without the remote key.
The key cylinder is covered with a cap.
See “Driver Door Key Lock Cylinder Access
(In Case of Dead Battery)” later in this
section.
.PressQorKon the remote key to lock
and unlock the doors.
To lock or unlock the doors from inside the
vehicle:
.PressQorKon the power door lock
switch.
.Pull the door handle. Pulling an interior
door handle will unlock the door. Pulling
the door handle again unlatches it.
Keyless Access
The remote key must be within 1 m (3 ft) of
the liftgate or door being opened. Press the
button on the door handle to open. See
“Keyless Access Operation” underRemote
Key Operation 07.

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada-
16404388) - 2023 - CRC - 3/7/22
Vehicle Care 217
1. Windshield Washer Fluid Reservoir. SeeWasher Fluid 0218.
2. Cabin Heating Coolant Reservoir. See Cooling System 0217.
3. High Voltage Battery Coolant Reservoir. See Cooling System 0217.
4. HPDM (High Power Distribution Module).
5. APM (Accessory Power Module), OBCM (On-Board Charging Module).
6. Brake Fluid Reservoir. See Brake Fluid
0 219.
7. SPIM, APM, and Charger Module Coolant Reservoir. See Cooling System 0217.
8. Battery. See Battery - North America
0 220.
9. Underhood Compartment Fuse Block. Underhood Compartment Fuse Block
0229.
Cooling System
It is not necessary to regularly check coolant
unless a leak is suspected or an unusual
noise is heard. A coolant loss could indicate
a problem. Have it inspected and repaired
by your dealer.
The following explains the cooling systems
and how to check coolant levels.
.High Voltage Battery
.Single Power Inverter Module (SPIM),
Accessory Power Module (APM), and
Charger Module
.Cabin Heating
High Voltage Battery
During vehicle operation and also during
charging, the high voltage battery cells in
the vehicle are kept within a normal
operating temperature range. If the
temperature rises above this temperature,
the battery cooling system turns on the air
conditioning compressor and cools the
coolant until the correct temperature is
reached. If the temperature falls below this
temperature, a high voltage heater, located
outside the battery on a cradle, heats the
coolant until the correct temperature is
reached.
Single Power Inverter Module (SPIM),
Accessory Power Module (APM), and
Charger Module
The SPIM, APM, and charger module are
cooled using a separate coolant loop. These
modules are kept below a maximum
temperature. If the temperature rises above
this temperature, the electric cooling fan will
turn on to cool the coolant.
Cabin Heating
Cabin heating is maintained by coolant
heated by the Coolant Heater Control
Module (CHCM), separate from the power
electronics and battery coolant loops. This
module heats the coolant based on
temperature inputs from the cabin climate
control systems.
Hybrid Cooling System Pressure Caps
The hybrid cooling system reservoirs have
tamper resistant pressure caps. The coolant
should only be serviced by a qualified
technician.
Checking Coolant
The coolant needs to be replaced at the
appropriate interval. See Maintenance
Schedule 0271.
The coolant reservoirs are in the underhood
compartment. See Underhood Compartment
Overview 0216.

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada-
16404388) - 2023 - CRC - 3/7/22
218 Vehicle Care
1. Cabin Heating Coolant Reservoir
2. High Voltage Battery Coolant Reservoir
3. SPIM, APM, and Charger ModuleCoolant Reservoir
1. Park on a level surface and turn thevehicle off.
2. After the system has completely cooled, check that the coolant level is at the cold
fill mark on the reservoirs.
3. If the coolant level is not visible or needs to be adjusted within the reservoirs,
contact your dealer.
Washer Fluid
What to Use
When windshield washer fluid is needed, be
sure to read the manufacturer's instructions
before use. If operating the vehicle in an
area where the temperature may fall below
freezing, use a fluid that has sufficient
protection against freezing.
Adding Washer Fluid
Open the cap with the washer symbol on it.
Add washer fluid until the tank is full. See
Underhood Compartment Overview 0216 for
reservoir location.
Caution
.Do not use washer fluid that contains
any type of water repellent coating.
This can cause the wiper blades to
chatter or skip, and may also clog the
washer nozzle.
(Continued)
Caution (Continued)
.Do not use engine coolant (antifreeze)
in the windshield washer. It can
damage the windshield washer system
and paint.
.Do not mix water with ready-to-use
washer fluid. Water can cause the
solution to freeze and damage the
washer fluid tank and other parts of
the washer system.
.When using concentrated washer fluid,
follow the manufacturer instructions
for adding water.
.Fill the washer fluid tank only
three-quarters full when it is very cold.
This allows for fluid expansion if
freezing occurs, which could damage
the tank if it is completely full.
Brakes
Disc brake linings have built-in wear
indicators that make a high-pitched warning
sound when the brake linings are worn and
new linings are needed. The sound can come
and go or can be heard all the time when
the vehicle is moving, except when applying
the brake pedal firmly.

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada-
16404388) - 2023 - CRC - 3/7/22
232 Vehicle Care
FusesUsage
55 Rechargeable Energy
Storage System
Coolant Pump
56 –
57 Power Electronics
Coolant Pump
58 Engine Control Module
59 –
60 HVAC Electric Heater 61 On-board Charging Module
62 Transmission Range Control
Module 1
63 Electric Cooling Fan
64 Engine Control Module 65 Auxiliary Heater Pump
66 Powertrain 67 Drive Unit Controller
70 A/C Control Module 71 –
72 Transmission Range Control
Module Fuses
Usage
73 Single Power Inverter
Module
74 –
Relays Usage
6 Pedestrian Friendly Alert
Function
14 Liftgate 21 –
25 Powertrain
53 Run/Crank
68 Rear Window Defogger
69 Second Run/CrankInstrument Panel Fuse Block

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada-
16404388) - 2023 - CRC - 3/7/22
Service and Maintenance 271
The Additional Required Services are for
vehicles that:
.Carry passengers and cargo within
recommended limits on the Tire and
Loading Information label. SeeVehicle
Load Limits 0158.
.Are driven on reasonable road surfaces
within legal driving limits.
See “Additional Required Services” in the
Maintenance Schedule 0271.
{Warning
Performing maintenance work can be
dangerous and can cause serious injury.
Perform maintenance work only if the
required information, proper tools, and
equipment are available. If they are not,
see your dealer to have a trained
technician do the work. See Doing Your
Own Service Work 0213.
Maintenance Schedule
Tire Rotation and Required Services
Every 12 000 km (7,500 mi)
Tires are rotated to achieve a more uniform
wear for all tires. The first rotation is the
most important. Anytime unusual wear is noticed, rotate the
tires as soon as possible, check for proper
tire inflation pressure, and check for
damaged tires or wheels. If the unusual
wear continues after the rotation, check the
wheel alignment. See
When It Is Time for
New Tires 0245 and
Wheel Replacement 0248.
.Perform Multi-Point Vehicle Inspection.
See Multi-Point Vehicle Inspection (MPVI)
0 272.
.Lubricate body components. See Exterior
Care 0262.
Additional Required Services
Every 36 000 km (22,500 mi)
.Replace passenger compartment air filter.
Or every 24 months, whichever comes
first. More frequent passenger
compartment air filter replacement may
be needed if driving in areas with heavy
traffic, poor air quality, high dust levels,
or environmental allergens. Passenger
compartment air filter replacement may
also be needed if there is reduced airflow,
window fogging, or odors. Your GM
dealer can help determine when to
replace the filter. Every 161 000 km (100,000 mi)
.Replace hood and/or body lift support gas
struts. Or every 10 years, whichever
comes first. See
Gas Strut(s)0224.
Every 240 000 km (150,000 mi)
.Drain and fill vehicle coolant circuits. Or
every five years, whichever comes first.
See Cooling System 0217.
Owner Checks and Services
Every Five Years
.Replace brake fluid.
Every Seven Years
.Replace Air Conditioning Desiccant every
seven years. The air conditioning system
requires maintenance every seven years.
This service requires replacement of the
desiccant to help the longevity and
efficient operation of the air conditioning
system. This service can be complex. See
your dealer.

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada-
16404388) - 2023 - CRC - 3/7/22
Service and Maintenance 273
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
Fluids and lubricants identified below by name or specification, including fluids or lubricants not listed here, can be obtained from your dealer.Usage Fluid/Lubricant
Electric Drive Unit See your dealer.
Hydraulic Brake System GM approved DOT 4 Hydraulic Brake Fluid.
Key Lock Cylinders, Hood and Liftgate Hinges Multi-Purpose Lubricant, Superlube. See your dealer.
Vehicle Coolant Circuits Use only ACDelco Premix (50/50 mixture of de-ionized water and DEX-COOL Coolant). See your dealer.
Windshield Washer Automotive windshield washer fluid that meets regional freeze protection requirements.