2018 CHEVROLET VOLT air conditioning

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349113) - 2018 - crc - 10/12/17
156 Climate Controls
Pressing any of the air delivery
buttons cancels automatic air
delivery control and the direction of
the airflow can be controlled
manually. Press AUTO to return to
automatic operation.
To change the current mode, select
one or more of the following:
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.
For best results, clear all snow and
ice from the windshield before
defrosting. If
0MAX is selected in eco or
MAX mode, air conditioning or
electric heat may turn on and have
a noticeable effect on vehicle
electric range and fuel economy.
@: Press to turn on recirculation.
An indicator light comes on. Air is
recirculated to quickly cool the
inside of the vehicle or to reduce the
entry of outside air and odors. The
recirculation mode is not available in
Defrost or Defog modes.
Pressing this button cancels
automatic recirculation. Press AUTO
to return to automatic operation;
recirculation runs automatically as
needed.
Auto Defog : The system will
monitor high humidity inside the
vehicle. When high humidity is
detected, the climate control system
may adjust to outside air supply and
turn on the air conditioner or the
heater. The fan speed may slightly
increase to help prevent fogging.
When high humidity is no longer
detected, the system will return to
its prior operation. To turn Auto Defog off or on, see
“Climate and
Air Quality” underVehicle
Personalization 0137.
LorM:If equipped, pressLorMto heat the driver or passenger seat.
See Heated Front Seats 056.
Auto Heated Seats : If equipped,
the controls can be accessed while
the vehicle is on by pressing
Lor
Mon the center stack. When the
vehicle is on, this feature will
automatically activate the heated
seats at the level required by the
vehicle's interior temperature. The
active high, medium, low, or off
heated seat level will be indicated
by the manual heated seat button
lights on the center stack.
See Heated Front Seats 056 and
Vehicle Personalization 0137.
Rear Window Defogger
K:Press to turn the rear window
defogger on or off. An indicator light
on the button comes on to show that
the rear window defogger is on.

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349113) - 2018 - crc - 10/12/17
Climate Controls 157
The defogger only works when the
vehicle is on. The defogger will turn
off if the vehicle is turned off.
If equipped with heated outside
rearview mirrors, they turn on when
the rear window defogger button is
on and help to clear fog or frost from
the surface of the mirror. See
Heated Mirrors048.
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
038.
If equipped, the heated seats will
turn on if it is cold outside. The
heated seat indicator light may not
come on during a remote start.
If equipped, the heated steering
wheel will come on if it is cold
outside. The heated steering wheel
indicator light may not come on
during a remote start.
The rear window defogger turns on
if it is cold outside.
Compressor
The vehicle has an electric powered
air conditioning compressor. This
allows for continuous air
conditioning and/or high voltage
battery cooling operation, without
running the engine.
The compressor operating speed is
not tied to the engine speed, so
some noise may be heard from the
compressor, especially when air
conditioning use is high and the
engine has turned off. This is
normal.
Sensors
Solar Sensor
The solar sensor 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.

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349113) - 2018 - crc - 10/12/17
248 Vehicle Care
3. Fill the coolant surge tank withthe proper mixture to the cold
fill line.
4. Replace the pressure cap. Be sure the pressure cap is
hand-tight and fully seated.
Caution
If the pressure cap is not tightly
installed, coolant loss and engine
damage may occur. Be sure the
cap is properly and tightly
secured.
Cooling System (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 high
voltage battery cell temperature
rises above the normal operating
temperature range, the battery
cooling system turns on the air
conditioning compressor and cools
the coolant until the correct battery
cell temperature is reached. If the
high voltage battery cell temperature
falls below the normal operating
temperature range, a high voltage
heater, located in the battery, heats
the coolant until the correct battery
cell temperature is reached.
During high voltage battery system
cooling, you may feel temperature
changes at the air vents due to the
extra load on the system.
What to Use
The high voltage battery coolant
reservoir in the vehicle is filled with
GM Premix DEX-COOL engine
coolant. See Recommended Fluids
and Lubricants 0335. If using this
mixture, nothing else needs to be
added.
The coolant needs to be replaced at
the appropriate interval. See
Maintenance Schedule 0327.
Checking Coolant
The vehicle must be on a level
surface when checking the coolant
level.
The high voltage battery coolant
reservoir is located in the engine
compartment. See Engine
Compartment Overview 0239.

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349113) - 2018 - crc - 10/12/17
264 Vehicle Care
A fuse puller is in the engine
compartment fuse block.
The vehicle may not be equipped
with all of the fuses, relays, and
features shown.Fuses Usage
F01 –
F02 –
F03 Non walk home
F04 Engine control module
F05 Aeroshutter
F06 Traction power inverter module 1
F07 Traction power inverter module 2
F08 Engine control module
F09 Air conditioning module
F10 Vehicle integration control module
F11 Electric brake boost Fuses Usage
F12 Rechargeable energy storage
system
F13 Cabin heater control module
F14 Coolant heater control module
F15 Emissions
F16 Ignition coils
F17 Engine control module
F18 –
F19 –
F20 Electric brake boost
F21 Windshield wiper motor
F22 Antilock brake system pump
F23 Windshield washer pump
F24 –
F25 – Fuses Usage
F26 –
F27 Antilock brake system module
F28 Left power window
F29 Rear window defogger
F30 Heated mirrors
F31 –
F32 Variable functions
F33 –
F34 Horn
F35 Coolant rechargeable energy
storage
system pump
F36 Right high-beam headlamp
F37 Left high-beam headlamp
F38 –
F39 –
F40 –

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349113) - 2018 - crc - 10/12/17
268 Vehicle Care
A fuse puller is in the engine
compartment fuse block.
The vehicle may not be equipped
with all of the fuses, relays, and
features shown.Fuses Usage
F1 –
F2 –
F3 –
F4 Heating, ventilation, and air conditioning
blower
F5 Body control module 2
F6 –
F7 CGM
F8 Body control module 3
F9 Fuel power pump module
F10 –
F11 –
F12 – Fuses Usage
F13 –
F14 –
F15 –
F16 –
F17 Data link connector
F18 Body control module 7
F19 Cluster
F20 Body control module 1
F21 Body control module 4
F22 Body control module 6
F23 OnStar
F24 Airbag
F25 Display
F26 Infotainment Video bypass module
F27 –
F28 – Fuses Usage
F29 Overhead console
F30 Radio
F31 Steering wheel controls
F32 Body control module 8
F33 Heating, ventilation, and air conditioning/
Integrated light solar
sensor
F34 Passive entry/ Passive start
F35 Rear closure
F36 Charger
F37 –
F38 –
F39 –
F40 –
F41 –
F42 –

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349113) - 2018 - crc - 10/12/17
276 Vehicle Care
(3) Aspect Ratio:A two-digit
number that indicates the tire
height-to-width measurements.
For example, if the tire size
aspect ratio is 60, as shown in
item 3 of the illustration, it would
mean that the tire's sidewall is
60 percent as high as it is wide.
(4) Construction Code
:A letter
code is used to indicate the type
of ply construction in the tire.
The letter R means radial ply
construction; the letter D means
diagonal or bias ply
construction; and the letter B
means belted-bias ply
construction.
(5) Rim Diameter
:Diameter of
the wheel in inches.
(6) Service Description
:These
characters represent the load
index and speed rating of the
tire. The load index represents
the load carrying capacity a tire is certified to carry. The speed
rating is the maximum speed a
tire is certified to carry a load.
Tire Terminology and
Definitions
Air Pressure:The amount of
air inside the tire pressing
outward on each square inch of
the tire. Air pressure is
expressed in kPa (kilopascal)
or psi (pounds per square inch).
Accessory Weight
:The
combined weight of optional
accessories. Some examples of
optional accessories are, electric
drive unit, power windows,
power seats, and air
conditioning.
Aspect Ratio
:The relationship
of a tire's height to its width. Belt
:A rubber coated layer of
cords that is located between
the plies and the tread. Cords
may be made from steel or other
reinforcing materials.
Bead
:The tire bead contains
steel wires wrapped by steel
cords that hold the tire onto
the rim.
Bias Ply Tire
:A pneumatic tire
in which the plies are laid at
alternate angles less than
90 degrees to the centerline of
the tread.
Cold Tire Pressure
:The
amount of air pressure in a tire,
measured in kPa (kilopascal)
or psi (pounds per square inch)
before a tire has built up heat
from driving. See Tire Pressure
0 279.
Curb Weight
:The weight of a
motor vehicle with standard and
optional equipment including the

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349113) - 2018 - crc - 10/12/17
Technical Data 339
Vehicle Data
Capacities and Specifications
The following approximate capacities are given in metric and English conversions. Refer toRecommended Fluids and
Lubricants 0335 for more information.
Application Capacities
Metric English
Air Conditioning Refrigerant For the air conditioning system refrigerant charge type and amount, see the refrigerant label underthe hood. See your dealer for more information.
Cooling Systems Engine 7.0 L 7.4 qt
High Voltage Battery 4.2 L 4.5 qt
Power Electronics 4.8 L 5.0 qt
Engine Oil with Filter 4.0 L 4.2 qt
Fuel Tank 33.7 L 8.9 gal
Electric Drive Unit 6.75 L7.13 qt
Wheel Nut Torque 140Y 100 lb ft
All capacities are approximate. When adding, be sure to fill to the approximate level, as recommended in this
manual.

Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11349113) - 2018 - crc - 10/12/17
Index 367
IndexA
Accessories andModifications . . . . . . . . . . . . . . . . . . 236
Accessory Power . . . . . . . . . . . . . . . 174
Adaptive Cruise Control . . . . . . . . 193
Add-On Electrical Equipment . . . 232
Additional Information OnStar . . . . . . . . . . . . . . . . . . . . . . . 361
Additional Maintenance and Care . . . . . . . . . . . . . . . . . . . . . . 332
Air Cleaner/Filter, Engine . . . . . . . 243
Air Conditioning . . . . . . . . . . . . . . . . 153
Air Filter, Passenger Compartment . . . . . . . . . . . . . . . . . 159
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 158
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . . . 77
How Does an AirbagRestrain? . . . . . . . . . . . . . . . . . . . . . 69
Passenger Sensing System . . . . 71
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 69
What Will You See after an Airbag Inflates? . . . . . . . . . . . . . . . 70
When Should an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 68
Where Are the Airbags? . . . . . . . . 66 Airbags
Adding Equipment to the
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . 76
Passenger Status Indicator . . . .113
Readiness Light . . . . . . . . . . . . . . .113
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . . . 76
System Check . . . . . . . . . . . . . . . . . . 65
Alarm Vehicle Security . . . . . . . . . . . . . . . . 46
Alert
Lane Change . . . . . . . . . . . . . . . . . 209
Side Blind Zone (SBZA) . . . . . . 209
All-Season Tires . . . . . . . . . . . . . . . . 272
Antilock Brake System (ABS) . . . 185 Warning Light . . . . . . . . . . . . . . . . . .117
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . 315
Interior . . . . . . . . . . . . . . . . . . . . . . . . 320
Assistance Program, Roadside . . . . . . . . . . . . . . . . . . . . . . 345
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . . . 205
Assistance Systems for Parking and Backing . . . . . . . . . . 201
Automatic Climate Control System . . . . . . . 153
Door Locks . . . . . . . . . . . . . . . . . . . . . 43