2018 CHEVROLET BOLT EV heating

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11434431) - 2018 - crc - 2/14/18
186 Climate Controls
Climate Controls
Climate Control Systems
Automatic Climate ControlSystem . . . . . . . . . . . . . . . . . . . . . . 186
Air Vents
Air Vents . . . . . . . . . . . . . . . . . . . . . 190
Maintenance
Air Intake . . . . . . . . . . . . . . . . . . . . . 191
Passenger Compartment AirFilter . . . . . . . . . . . . . . . . . . . . . . . . 191
Air Conditioning Regular Operation . . . . . . . . . . . . . . . . . . . 192
Service . . . . . . . . . . . . . . . . . . . . . . . 192
Climate Control
Systems
Automatic Climate
Control System
The climate control buttons on the
center stack and on the climate
control display are used to adjust
the heating, cooling, and ventilation.
Center Stack Climate Controls
1. Defrost/Defog
2. Air Delivery Mode Controls
3. Max Defrost
4. Manual Fan Control Buttons 5. Temperature Control Knob
6. AUTO (Automatic Operation)
7. Rear Window Defogger
Climate Control Display
1. Driver and Passenger Heated Seats (If Equipped)
2. Climate On-Off
3. Recirculation
4. Heat & A/C (Air Conditioning) Power
5. Fan Speed and Temperature Status

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11434431) - 2018 - crc - 2/14/18
Climate Controls 187
Climate Control Display
The heated seats, if equipped,
climate on/off, recirculation, heat,
and air conditioning can be
controlled by touching Climate
Settings on the infotainment
Home Page.
A selection can then be made on
the climate settings page.
Automatic Operation
The system automatically controls
the fan speed, air delivery, air
conditioning, electric heating, and
recirculation to heat or cool the
vehicle to the selected temperature.
When AUTO is lit, all five functions
operate automatically. Each function
can also be manually set and the
selected setting is displayed or the
indicator is lit. Functions not
manually set will continue to be
automatically controlled, even if the
AUTO indicator is not lit.
For automatic operation:1. Press AUTO. 2. Set the temperature. An initial
setting of 22 °C (72 °F) is
recommended. Allow the
system time to stabilize. Adjust
the temperature as needed.
Manual Operation
ON : Touch to turn the climate
control system on and off.
The climate control system will turn
on when any climate control button
is pressed on the center stack or
touched on the climate control
display. To turn the system off,
touch ON again.
DorC: Press the buttons to
increase or decrease the fan speed.
The fan speed setting appears on
the climate control display. Manually
adjusting the fan speed cancels
automatic fan control. Press AUTO
to return to automatic operation.
Touch ON to turn off the fan and the
climate control system.
Temperature Control : Turn the
knob clockwise or counterclockwise
to increase or decrease the
temperature setting. Air Delivery Mode Control :
Press
c,d, or0on the center stack
to change the direction of airflow.
Any combination of the three
buttons can be selected. The
selected air delivery mode button
indicator is lit.
Pressing any button cancels
automatic air delivery control and
the direction of the airflow can be
controlled manually. Press AUTO to
return to automatic operation.
0: Air is directed to the
windshield.
d: Air is directed to the instrument
panel outlets.
c: Air is directed to the floor
outlets.
0MAX : Air is directed to the
windshield and the fan runs at a
higher speed. Fog or frost is cleared
from the windshield more quickly.
When the button is pressed again,
the system returns to the previous
mode setting.

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11434431) - 2018 - crc - 2/14/18
Climate Controls 189
Caution
Do not try to clear frost or other
material from the inside of the
front windshield and rear window
with a razor blade or anything
else that is sharp. This may
damage the rear window
defogger grid and affect the
radio's ability to pick up stations
clearly. The repairs would not be
covered by the vehicle warranty.
Remote Start : The climate control
system may be started by using the
Remote Keyless Entry (RKE)
transmitter. The climate control
system will default to an appropriate
heating or cooling mode. See
Remote Start 039.
The rear window defogger turns on
if it is cold outside. Mobile Application Feature
If equipped, this feature allows a
smartphone to set the start-up
climate control settings. The
following features can be set:
.
Temperature
. Fan Speed
. Air Delivery Mode
. Climate Mode
. Recirculation
Once the settings are saved through
the application, the vehicle will use
these settings when turned on. After
the vehicle is turned on, use the
climate controls if additional
adjustments are desired.
Sensors
Indicator Light and Solar
Sensor (ILSS)
The ILSS is on top of the instrument
panel, near the windshield, where it
monitors solar intensity. The climate control system uses the
sensor information to adjust the
temperature, fan speed,
recirculation, and air delivery mode
for best comfort.
Do not cover the sensor; otherwise
the automatic climate control system
may not work properly.
Humidity Sensor
The humidity sensor is near the
base of the inside rearview mirror.
The climate control system uses the
sensor information to adjust the
temperature and recirculation for
best comfort.
Outside Air Temperature Sensor
The outside air temperature sensor
is behind the front grille of the
vehicle. The vehicle uses the sensor
information to display outside air
temperature. The climate control
system uses the information to
adjust the climate system operation.

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11434431) - 2018 - crc - 2/14/18
260 Vehicle Care
1. Windshield Washer FluidReservoir. See Washer Fluid
0 261.
2. Cabin Heating Coolant Reservoir. See Cooling System
0 260.
3. High Voltage Battery Coolant Reservoir. See Cooling System
0 260.
4. HPDM (High Power Distribution Module).
5. APM (Accessory Power Module), OBCM (On-Board
Charging Module).
6. Brake Fluid Reservoir. See Brake Fluid 0263.
7. SPIM, APM, and Charger Module Coolant Reservoir. See
Cooling System 0260.
8. Battery. See Battery - North
America 0264.
9. Underhood Compartment Fuse Block. Underhood
Compartment Fuse Block
0 272.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.

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11434431) - 2018 - crc - 2/14/18
Vehicle Care 261
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 Schedule0322.
The coolant reservoirs are in the
underhood compartment. See
Underhood Compartment Overview
0 259.
1. Cabin Heating Coolant
Reservoir
2. High Voltage Battery Coolant Reservoir
3. SPIM, APM, and Charger Module Coolant Reservoir
1. Park on a level surface and turn the vehicle 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 0259 for
reservoir location.

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11434431) - 2018 - crc - 2/14/18
264 Vehicle Care
Caution
If brake fluid is spilled on the
vehicle's painted surfaces, the
paint finish can be damaged.
Immediately wash off any painted
surface.
Battery - North America
The original equipment battery is
maintenance free. Do not remove
the cap and do not add fluid.
This vehicle has a high voltage
battery and a standard 12-volt
battery.
{Warning
Damage to the high voltage
battery or high voltage system
can create a risk of electric shock,
overheating, or fire.
If the vehicle is damaged from a
moderate to severe crash, flood,
fire, or other event, the vehicle(Continued)
Warning (Continued)
should be inspected as soon as
possible. Until the vehicle has
been inspected, store it outside at
least 15 m (50 ft) from any
structure or anything that can
burn. Ventilate the vehicle by
opening a window or a door.
Contact Customer Assistance as
soon as possible to determine
whether an inspection is needed.
SeeCustomer Assistance Offices
0 334.
If the vehicle is in a crash, the
sensing system may shut down the
high voltage system. When this
occurs, the high voltage battery is
disconnected and the vehicle will
not start. The SERVICE VEHICLE
SOON message in the Driver
Information Center (DIC) will be
displayed. Before the vehicle can be
operated again, it must be serviced
at your dealer. See
“If a Crash Occurs” under
Collision Damage Repair 0339 for
additional information. If an airbag
has inflated, see What Will You See
after an Airbag Inflates? 075.
Only a trained service technician
with the proper knowledge and tools
should inspect, test, or replace the
high voltage battery. See your
dealer if either the 12-volt or high
voltage battery needs service. The
dealer has information on how to
recycle the high voltage battery.
There is also information available
at http://www.recyclemybattery.com.
Keep the vehicle plugged in, even
when fully charged, to keep the high
voltage battery temperature ready
for the next drive. This is important
when outside temperatures are
extremely hot or cold.
Propulsion power may be reduced
in extremely cold temperatures, or if
the high voltage battery is too cold.
BATTERY TOO COLD, PLUG IN
TO WARM will display.

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11434431) - 2018 - crc - 2/14/18
Vehicle Care 277
FusesUsage
F29 Trailer interface
module 2
F30 Headlamp leveling
device
F31 OnStar
F32 –
F33 Heating, ventilation,
and air conditioning
module
F34 –
F35 Instrument cluster 1
F36 Radio
F37 –
F38 –
F39 –
F40 –
F41 –
F42 –
F43 Body control module 7 Fuses
Usage
F44 Sensing and
diagnostic module
F45 Front camera module
F46 Vehicle integration
control module
F47 Single power inverter
module 2
F48 Electric steering
column lock
F49 Auxiliary jack
F50 Steering wheel
controls
F51 Steering wheel
controls backlighting
F52 Smartphone remote
function module
F53 Auxiliary power outlet
F54 –
F55 Logistic
F56 – Fuses
Usage
F57 –
F58 Logistics relay
F59 –
F60 Accessory/Retained
accessory power relay

Chevrolet BOLT EV Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11434431) - 2018 - crc - 2/14/18
278 Vehicle Care
Wheels and Tires
Tires
Every new GM vehicle has
high-quality tires made by a
leading tire manufacturer. See
the warranty manual for
information regarding the tire
warranty and where to get
service. For additional
information refer to the tire
manufacturer.
{Warning
.Poorly maintained and
improperly used tires are
dangerous.
.Overloading the tires can
cause overheating as a
result of too much
flexing. There could be a
blowout and a serious
crash. SeeVehicle Load
Limits 0200.
(Continued)
Warning (Continued)
.Underinflated tires pose
the same danger as
overloaded tires. The
resulting crash could
cause serious injury.
Check all tires frequently
to maintain the
recommended pressure.
Tire pressure should be
checked when the tires
are cold.
.Overinflated tires are
more likely to be cut,
punctured, or broken by
a sudden impact —such
as when hitting a pothole.
Keep tires at the
recommended pressure.
.Worn or old tires can
cause a crash. If the
tread is badly worn,
replace them.
(Continued)
Warning (Continued)
.Replace any tires that
have been damaged by
impacts with potholes,
curbs, etc.
.Improperly repaired tires
can cause a crash. Only
the dealer or an
authorized tire service
center should repair,
replace, dismount, and
mount the tires.
.Do not spin the tires in
excess of 56 km/h
(35 mph) on slippery
surfaces such as snow,
mud, ice, etc. Excessive
spinning may cause the
tires to explode.