2012 CHEVROLET VOLT cooling

Black plate (21,1)Chevrolet Volt Owner Manual - 2012
Vehicle Care 10-21
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 13‑6.
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.
Notice:Engine damage from
running the engine without
coolant is not covered by the
warranty.
Washer Fluid
What to Use
When adding windshield washer
fluid to the vehicle, 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
The WASHER FLUID LOW ADD
FLUID message will appear on the
Driver Information Center (DIC)
when the fluid level is low. See
Driver Information Center (DIC) on
page 5‑45 for more information.
Open the cap with the washer
symbol on it. Add washer fluid until
the tank is full. See Engine
Compartment Overview on
page 10‑8 for reservoir location.

Black plate (37,1)Chevrolet Volt Owner Manual - 2012
Vehicle Care 10-37
J‐CaseFuses Usage
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
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 Charge Port Door

Black plate (43,1)Chevrolet Volt Owner Manual - 2012
Vehicle Care 10-43
FusesUsage
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)
F7 Accessory Power
Module Cooling Fan
F8 Amplifier
(If Equipped)
F9 Empty
F10 Regulated Voltage
Control/Ultrasonic
Front and Rear
Parking Assist
(If Equipped) Fuses
Usage
F11 Horn
F12 Rear Power
Windows
F13 Electric Parking
Brake
F14 Rear Defog
(Upper Grid)
F15 Empty
F16 Hatch Release
F17 Empty
F18 Empty Relays
Usage
R1 Rear Defog
(Upper Grid)
R2 Hatch Release
R3 Empty
R4 Empty
R5 Empty
R6 Empty
R7/R8 Horn
Diodes Usage DIODE Empty

Black plate (63,1)Chevrolet Volt Owner Manual - 2012
Vehicle Care 10-63
A represent higher levels of
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
will not be necessary on a regular
basis. However, check the
alignment if there is unusual tire
wear or if the vehicle is pulling to
one side or the other. If the vehicle
vibrates when driving on a smoothroad, the tires and wheels might
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, offset and 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.
Notice: The wrong wheel can
also cause problems with bearing
life, brake cooling, speedometer
or odometer calibration,
headlamp aim, bumper height,
vehicle ground clearance, and tire
clearance to the body and
chassis.

Black plate (3,1)Chevrolet Volt Owner Manual - 2012
Service and Maintenance 11-3
Maintenance
Schedule
Owner Checks and Services
At Each Fuel Stop
.Check the engine oil level. See
Engine Oil on page 10‑9.
Once a Month
.Check the tire inflation
pressures. See Tire Pressure on
page 10‑50.
.Inspect the tires for wear. See
Tire Inspection on page 10‑57.
.Check the windshield washer
fluid level. See Washer Fluid on
page 10‑21.
.Engine, power electronics, and
high voltage battery pack
coolant level checks. See
Cooling System (Engine) on
page 10‑15 orCooling System
(High Voltage Battery) on
page 10‑16 orCooling System
(Power Electronics and Charger
Modules) on page 10‑17 for
more information.
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 10‑57.
.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 10‑18.
.Check windshield washer fluid
level. See Washer Fluid on
page 10‑21.

Black plate (6,1)Chevrolet Volt Owner Manual - 2012
11-6 Service and Maintenance
Footnotes—Maintenance
Schedule Additional Required
Services —Normal
a) Check all fuel and vapor lines
and hoses for proper hook‐up,
routing, and condition. Check that
the purge valve, if the vehicle has
one, works properly. Replace as
needed.
b) Or every four years, whichever
comes first.
c) Or every five years, whichever
comes first. See Cooling System
(Engine) on page 10‑15 orCooling
System (High Voltage Battery) on
page 10‑16 orCooling System
(Power Electronics and Charger
Modules) on page 10‑17.
d) Or every 10 years, whichever
comes first. Inspect for fraying,
excessive cracking, or damage;
replace, if needed.

Black plate (8,1)Chevrolet Volt Owner Manual - 2012
11-8 Service and Maintenance
Footnotes—Maintenance
Schedule Additional Required
Services —Severe
a) Check all fuel and vapor lines
and hoses for proper hook‐up,
routing, and condition. Check that
the purge valve, if the vehicle has
one, works properly. Replace as
needed.
b) Or every four years, whichever
comes first. c)
Or every five years, whichever
comes first. See Cooling System
(Engine) on page 10‑15 orCooling
System (High Voltage Battery) on
page 10‑16 orCooling System
(Power Electronics and Charger
Modules) on page 10‑17.
d) Or every 10 years, whichever
comes first. Inspect for fraying,
excessive cracking, or damage;
replace, if needed.Special Application
Services
.Severe Commercial Use
Vehicles Only: Lubricate chassis
components every 5 000 km/
3,000 mi.
.Have underbody flushing service
performed once a year.
.Have air conditioning system
flushed and refilled and
desiccant replaced every ten
years.

Black plate (12,1)Chevrolet Volt Owner Manual - 2012
11-12 Service and Maintenance
Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
UsageFluid/Lubricant
Engine Oil Use only engine oil licensed to the dexos1 specfication, or equivalent, of
the proper SAE viscosity grade. ACDelco dexos1 Synthetic Blend is
recommended. See
Engine Oil on page 10‑9.
Engine Cooling System Premix DEX-COOL (GM Part No. 12378390, in Canada 10953456). See
Engine Coolant on page 10‑18.
High Voltage Battery Cooling System Premix DEX-COOL (GM Part No. 12378390, in Canada 10953456). Power Electronics Cooling System Premix DEX-COOL (GM Part No. 12378390, in Canada 10953456).
Hydraulic Brake System DOT 3 Hydraulic Brake Fluid (GM Part No. 88863461, in
Canada 88863462).
Windshield Washer Optikleen
®Washer Solvent.
Parking Brake Cable Guides Chassis Lubricant (GM Part No. 12377985, in Canada 88901242) or
lubricant meeting requirements of NLGI #2, Category LB or GC‐LB.