cooling CHEVROLET VOLT 2014 1.G User Guide

(14,1)Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada-6014139) -
2014 - CRC - 9/16/13
10-14 Vehicle Care
2. Replace the air cleaner cover bylowering it to meet the bottom of
the engine air cleaner/filter
assembly. Place the retaining
clips (1) on the engine air
cleaner/filter assembly and
secure. The rear tabs must be
secured into the lower portion of
the air cleaner.
3. Reconnect the air duct and tighten the air duct clamp (2).
4. Reconnect the electrical connector (3).
{Warning
Operating the engine with the air
cleaner/filter off can cause you or
others to be burned. The air
cleaner not only cleans the air; it
helps to stop flames if the engine
backfires. Use caution when
working on the engine and do not
drive with the air cleaner/filter off.
{Caution
If the air cleaner/filter is off, dirt
can easily get into the engine,
which could damage it. Always
have the air cleaner/filter in place
when you are driving.
Cooling System (Engine)
1. Engine Coolant Surge Tank and
Pressure Cap
2. Engine Cooling Fans (Out of View)
{Warning
The electric fans under the hood
can start up even when the
engine is not running and can
cause injury. Keep hands,
clothing, and tools away from any
underhood electric fan.
If the coolant inside the coolant
surge tank is boiling, do not do
anything else until it cools down.
The vehicle should be parked on a
level surface.
The coolant level should be up to
the cold fill line. If it is not, there
might be a leak at the radiator
hoses, heater hoses, radiator, water
pump, or somewhere else in the
cooling system.

(15,1)Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada-6014139) -
2014 - CRC - 9/16/13
Vehicle Care 10-15
{Warning
Heater and radiator hoses, and
other engine parts, can be very
hot. Do not touch them. If you do,
you can be burned.
Do not run the vehicle if there is a
leak. If you run the engine, it
could lose all coolant. That could
cause an engine fire, and you
could be burned. Get any leak
fixed before you drive the vehicle.
If there seems to be no leak, with
the engine on, check to see if the
cooling fans are running. If the
engine is overheating, the fans
should be running. If it is not, the
vehicle needs service. Turn off the
vehicle.
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
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 in the
battery, heats the coolant until the
correct temperature is reached.
What to Use
The high voltage battery coolant
reservoir in the vehicle is filled with
a 50/50 mixture of DEX-COOL
®
engine coolant and deionized water.
If using this mixture, nothing else
needs to be added.
The coolant needs to be replaced at
the appropriate interval. See
Maintenance Schedule on
page 11-2.
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 on
page 10-8.
Check to see if coolant is visible in
the high voltage battery coolant
reservoir. If coolant is visible but the

(16,1)Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada-6014139) -
2014 - CRC - 9/16/13
10-16 Vehicle Care
coolant level is below the cold fill
line, there could be a leak in the
cooling system.
The high voltage battery coolant
should only be serviced by a
qualified technician.
Cooling System (Power
Electronics and Charger
Modules)
The power electronics and charger
modules are cooled using the same
coolant loop.
The power electronics and charger
modules in the vehicle are kept
below a maximum temperature.
If the temperature rises above this
temperature, the electric cooling
fans will turn on and cool the
coolant until the correct temperature
is reached.
What to Use
The power electronics and charger
modules coolant reservoir in the
vehicle is filled with a 50/50 mixture
of DEX-COOL engine coolant and
deionized water. If using this
mixture, nothing else needs to be
added.
The coolant needs to be replaced at
the appropriate interval. See
Maintenance Schedule on
page 11-2.
Checking Coolant
The vehicle must be on a level
surface when checking the coolant
level.
The power electronics and charger
modules coolant reservoir is located
in the engine compartment. See
Engine Compartment Overview on
page 10-8.
Check to see if coolant is visible in
the power electronics and charger
modules coolant reservoir. If coolant
is visible but the coolant level is
below the cold fill line, there could
be a leak in the cooling system.
The power electronics and charger
modules coolant should only be
serviced by a qualified technician.

(17,1)Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada-6014139) -
2014 - CRC - 9/16/13
Vehicle Care 10-17
Engine Coolant
The engine cooling system in the
vehicle is filled with DEX-COOL
engine coolant. The coolant needs
to be replaced every 5 years or
240 000 km (150,000 mi), whichever
occurs first.
The following explains the cooling
system and how to check and add
coolant when it is low. If there is a
problem with engine overheating,
seeEngine Overheating on
page 10-19.
What to Use
{Warning
Adding only plain water or some
other liquid to the cooling system
can be dangerous. Plain water
and other liquids, can boil before
the proper coolant mixture will.
The coolant warning system is set
for the proper coolant mixture.
With plain water or the wrong
(Continued)
Warning (Continued)
mixture, the engine could get too
hot but you would not get the
overheat warning. The engine
could catch fire and you or
others could be burned. Use a
50/50 mixture of deionized water
and DEX-COOL coolant.
Use a 50/50 mixture of deionized
water and DEX-COOL coolant.
If using this mixture, nothing else
needs to be added. This mixture:
.Gives freezing protection down
to −37°C (−34°F), outside
temperature.
.Gives boiling protection up to
129°C (265°F), engine
temperature.
.Protects against rust and
corrosion.
.Will not damage aluminum parts.
.Helps keep the proper engine
temperature.
{Caution
If improper coolant mixture,
inhibitors, or additives are used in
the vehicle cooling system, the
engine could overheat and be
damaged. Too much deionized
water or clean drinkable water
can freeze and crack engine
cooling parts. The repairs would
not be covered by the vehicle
warranty. Use only the proper
mixture of engine coolant for the
cooling system. See
Recommended Fluids and
Lubricants on page 11-10.
Never dispose of engine coolant by
putting it in the trash, pouring it
on the ground, or into sewers,
streams, or bodies of water. Have
the coolant changed by an
authorized service center, familiar
with legal requirements regarding

(18,1)Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada-6014139) -
2014 - CRC - 9/16/13
10-18 Vehicle Care
used coolant disposal. This will help
protect the environment and your
health.
Checking Coolant
The vehicle must be on a level
surface when checking the coolant
level.
Check to see if coolant is visible in
the coolant surge tank. If the coolant
inside the coolant surge tank is
boiling, do not do anything else until
it cools down. If coolant is visible
but the coolant level is not at or
above the cold fill mark, add a
50/50 mixture of deionized water
and DEX-COOL coolant at the
coolant surge tank, but be sure the
cooling system is cool before this is
done. SeeEngine Overheating on
page 10-19 for more information.
The coolant reservoir is located on
the passenger side of the engine
compartment. See Engine
Compartment Overview on
page 10-8 for more information on
location. The coolant level should be at or
above the cold fill line on the
coolant surge tank. If it is not, there
could be a leak in the cooling
system.How to Add Coolant to the
Coolant Surge Tank
{Warning
You can be burned if you spill
coolant on hot engine parts.
Coolant contains ethylene glycol
and it will burn if the engine parts
are hot enough. Do not spill
coolant on a hot engine.
{Caution
This vehicle has a specific
coolant fill procedure. Failure to
follow this procedure could cause
the engine to overheat and be
severely damaged.
{Warning
The electric fans under the hood
can start up even when the
engine is not running and can
cause injury. Keep hands,
clothing, and tools away from any
underhood electric fan.
{Warning
Steam and scalding liquids from a
hot cooling system can blow out
and burn you badly. They are
under pressure, and if you turn
the surge tank pressure
cap
—even a little —they can
come out at high speed. Never
turn the cap when the cooling
system, including the surge tank
pressure cap, is hot. Wait for the
cooling system and surge tank
pressure cap to cool if you ever
have to turn the pressure cap.

(19,1)Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada-6014139) -
2014 - CRC - 9/16/13
Vehicle Care 10-19
If coolant is needed, add the proper
DEX-COOL coolant mixture at the
coolant surge tank.
The coolant surge tank pressure
cap can be removed when the
cooling system, including the surge
tank pressure cap and upper
radiator hose, is no longer hot.
1. Turn the pressure cap slowlycounterclockwise. If a hiss is
heard, wait for that to stop.
A hiss means there is still some
pressure left.
2. Keep turning the cap and remove it.
3. Fill the coolant surge tank with
the 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
possible engine damage may
occur. Be sure the cap is properly
and tightly secured.
Engine Overheating
The vehicle has an indicator to warn
of engine overheating.
If the decision is made not to lift the
hood when this warning appears,
get service help right away. See
Roadside Assistance Program on
page 13-5.
If the decision is made to lift the
hood, make sure the vehicle is
parked on a level surface.
Then check to see if the engine
cooling fans are running. If the
engine is overheating, the fans
should be running. If they are not,
do not continue to run the vehicle
and have the vehicle serviced.
{Caution
Running the engine without
coolant may cause damage or a
fire. Vehicle damage would not be
covered by the vehicle warranty.

(34,1)Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada-6014139) -
2014 - CRC - 9/16/13
10-34 Vehicle Care
Mini Fuses Usage53 Traction Power Inverter Module –
Run/Crank
54 Run/Crank –Fuel
System Control
Module, Air
Conditioning Control
Module, On Board
Charger
J-Case Fuses Usage
16 AIR Solenoid (PZEV Only)
18 Empty
19 Power Window –
Front
20 Empty
21 Antilock Brake System Electronic
Control Unit
23 Empty J-Case
Fuses Usage
27 AIR Pump (PZEV Only)
28 Empty
29 Empty
30 Antilock Brake System Motor
42 Cooling Fan –Right
43 Front Wipers
44 Charger
45 Empty
48 Cooling Fan –Left
Mini Relays Usage 3 Powertrain
4 Heated Mirrors
7 Empty
9 AIR Pump (PZEV Only)
11 Empty Mini Relays Usage
12 Empty
13 Empty
14 Run/Crank
Micro
Relays Usage
1 Empty
2 AIR Solenoid (PZEV Only)
6 Empty
8 Empty
10 Empty
Ultra Micro Relays Usage
5 Empty

(39,1)Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada-6014139) -
2014 - CRC - 9/16/13
Vehicle Care 10-39
A fuse puller is in the engine
compartment fuse block.
The vehicle may not have all of the
fuses, relays, and features shown.Fuses Usage
F1 Empty
F2 Fuel System Control Module
F3 Passive Start/ Passive Entry
Module
F4 Heated Seats (If Equipped)
F5 Driver Door Switches (Outside
Rearview Mirror/
Charge Port Door
Release/Refuel
Request/Driver
Window Switch)
F6 Fuel (Diurnal Valve and Evap. Leak
Check Module) Fuses
Usage
F7 Accessory Power Module Cooling Fan
F8 Amplifier (If Equipped)
F9 Empty
F10 Regulated Voltage Control/Ultrasonic
Front and Rear
Parking Assist (If
Equipped)
F11 Horn
F12 Rear Power Windows
F13 Electric Parking Brake
F14 Rear Defog
F15 Empty
F16 Hatch Release
F17 Empty
F18 Empty Relays
Usage
R1 Rear Defog
R2 Hatch Release
R3 Empty
R4 Empty
R5 Empty
R6 Empty
R7/R8 Horn
Diodes Usage DIODE Empty

(59,1)Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada-6014139) -
2014 - CRC - 9/16/13
Vehicle Care 10-59
performance on the laboratory
test wheel than the minimum
required by law. Warning: The
temperature grade for this tire is
established for a tire that is
properly inflated and not
overloaded. Excessive speed,
underinflation, or excessive
loading, either separately or in
combination, can cause heat
buildup and possible tire failure.
Wheel Alignment and Tire
Balance
The tires and wheels were aligned
and balanced at the factory to
provide the longest tire life and best
overall performance. Adjustments to
wheel alignment and tire balancing
are not necessary on a regular
basis. Consider an alignment check
if there is unusual tire wear or the
vehicle is significantly pulling to one
side or the other. Some slight pull to
the left or right, depending on the
crown of the road and/or other roadsurface variations such as troughs
or ruts, is normal. If the vehicle is
vibrating when driving on a smooth
road, the tires and wheels may need
to be rebalanced. See your dealer
for proper diagnosis.
Wheel Replacement
Replace any wheel that is bent,
cracked, or badly rusted or
corroded. If wheel nuts keep coming
loose, the wheel, wheel bolts, and
wheel nuts should be replaced.
If the wheel leaks air, replace it.
Some aluminum wheels can be
repaired. See your dealer if any of
these conditions exist.
Your dealer will know the kind of
wheel that is needed.
Each new wheel should have the
same load-carrying capacity,
diameter, width, and offset, and
should be mounted the same way
as the one it replaces.
Replace wheels, wheel bolts, wheel
nuts, or Tire Pressure Monitor
System (TPMS) sensors with new
GM original equipment parts.
{Warning
Using the wrong replacement
wheels, wheel bolts, or wheel
nuts can be dangerous. It could
affect the braking and handling of
the vehicle. Tires can lose air,
and cause loss of control, causing
a crash. Always use the correct
wheel, wheel bolts, and wheel
nuts for replacement.
{Caution
The wrong wheel can also cause
problems with bearing life, brake
cooling, speedometer or
odometer calibration, headlamp
aim, bumper height, vehicle
(Continued)

(3,1)Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada-6014139) -
2014 - CRC - 9/16/13
Service and Maintenance 11-3
.Engine, power electronics, and
high voltage battery pack
coolant level checks. See
Cooling System (Engine) on
page 10-14orCooling System
(High Voltage Battery) on
page 10-15 orCooling System
(Power Electronics and Charger
Modules) on page 10-16.
Engine Oil Change
Every 24 months or when the
CHANGE ENGINE OIL SOON
message displays, change the
engine oil and filter as soon as
possible, within the next 1 000 km/
600 mi. The engine oil and filter
must be changed at least once
every 24 months. After each oil and
filter change, the oil life system must
be reset. See Engine Oil Life
System on page 10-12. More
frequent changes may be required
when the vehicle is exposed to a
corrosive environment, such as areas of high humidity, along an
ocean coast, and/or areas that
apply road salt during winter.
Your trained dealer technician can
perform this work. If the engine oil
life system is reset accidentally,
service the vehicle within 5 000 km/
3,000 mi since the last service.
Reset the oil life system when the
oil is changed.Tire Rotation and Required
Services Every 12 000 km/
7,500 mi
Rotate the tires, if recommended for
the vehicle, and perform the
following services. See
Tire
Rotation on page 10-53.
.Check engine oil level and oil
life percentage. If needed,
change engine oil and filter, and
reset oil life system. See Engine
Oil on page 10-9 andEngine Oil
Life System on page 10-12.
.Check engine coolant level. See
Engine Coolant on page 10-17.
.Check windshield washer fluid
level. See Washer Fluid on
page 10-20.
.Visually inspect windshield wiper
blades for wear, cracking,
or contamination. See Exterior
Care on page 10-80. Replace
worn or damaged wiper blades.
See Wiper Blade Replacement
on page 10-26.
.Check tire inflation pressures.
See Tire Pressure on
page 10-47.
.Inspect tire wear. See Tire
Inspection on page 10-52.
.Visually check for fluid leaks.
.Inspect engine air cleaner filter.
See Engine Air Cleaner/Filter on
page 10-13.