Page 329 of 454

Black plate (25,1)Chevrolet Volt Owner Manual - 2012
Vehicle Care 10-25
{WARNING
With the wrong kind of fluid in the
brake hydraulic system, the
brakes might not work well. This
could cause a crash. Always use
the proper brake fluid.
Notice
.Using the wrong fluid can
badly damage brake
hydraulic system parts. For
example, just a few drops of
mineral-based oil, such as
engine oil, in the brake
hydraulic system can
damage brake hydraulic
system parts so badly that
they will have to be replaced.
Do not let someone put in
the wrong kind of fluid.
.If brake fluid is spilled on the
vehicle's painted surfaces,
the paint finish can be
damaged. Be careful not to
spill brake fluid on the
vehicle. If you do, wash it off
immediately.
Battery
This vehicle has a high voltage
battery and a standard 12‐volt
battery.
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 on
page 13‑10 for additional
information. If an airbag has inflated, see
What Will You See
after an Airbag Inflates? on
page 3‑24.
Only a trained service technician
with the proper knowledge and tools
should inspect, test, or replace the
high voltage battery. See your
dealer if the 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.
A vehicle cover, which can reduce
sun loading on the vehicle and
improve high voltage battery life, is
available from your dealer.
Page 330 of 454

Black plate (26,1)Chevrolet Volt Owner Manual - 2012
10-26 Vehicle Care
Refer to the replacement number
shown on the original battery label
when a new 12‐volt battery is
needed. The vehicle has an
Absorbed Glass Mat (AGM) 12‐volt
battery. Installation of a standard
12‐volt battery will result in reduced
12‐volt battery life.
When using a 12‐volt battery
charger on the 12‐volt AGM battery,
some chargers have an AGM
battery setting on the charger.
If available, use the AGM setting on
the charger, to limit charge voltage
to 14.8 volts.
{WARNING
Battery posts, terminals, and
related accessories contain lead
and lead compounds, chemicals
known to the State of California to
cause cancer and reproductive
harm. Wash hands after handling.
Vehicle Storage
{WARNING
12‐volt batteries have acid that
can burn you and gas that can
explode. You can be badly hurt if
you are not careful. SeeJump
Starting on page 10‑75 for tips on
working around a battery without
getting hurt.
Extended Storage
Remove the 12‐volt battery black,
negative (−) cable from the battery
to keep the 12‐volt battery from
running down or use a battery trickle
charger. In addition, to avoid potential
damage to the high voltage battery,
perform the following recommended
steps:.Store the high voltage battery
with 1/2 charge or less.
.Always store the vehicle in an
environment between
−10°C
(14°F) and 30°C (86°F).
.Vehicle storage at extreme
temperatures can cause damage
to the high voltage battery.
Remember to reconnect the 12‐volt
battery when ready to drive the
vehicle.
Page 331 of 454

Black plate (27,1)Chevrolet Volt Owner Manual - 2012
Vehicle Care 10-27
Electric Drive Unit Shift
Lock Control Function
Check
{WARNING
When you are doing this
inspection, the vehicle could
move suddenly. If the vehicle
moves, you or others could be
injured.
1. Before starting this check, be sure there is enough room
around the vehicle. It should be
parked on a level surface.
2. Firmly apply the parking brake. See Electric Parking Brake on
page 9‑34.
Be ready to apply the regular
brake immediately if the vehicle
begins to move.
3. With the vehicle off and the brake not applied, press and
hold the POWER
Obutton for more than five seconds to place
the vehicle in Service Only
Mode. See
Power Button on
page 9‑18. Without applying the
regular brake, try to move the
shift lever out of P (Park) with
normal effort. If the shift lever
moves out of P (Park), contact
your dealer for service.
Park Brake and P (Park)
Mechanism Check
{WARNING
When you are doing this check,
the vehicle could begin to move.
You or others could be injured
and property could be damaged.
Make sure there is room in front
of the vehicle in case it begins to
roll. Be ready to apply the regular
brake at once should the vehicle
begin to move. Park on a fairly steep hill, with the
vehicle facing downhill. Keeping
your foot on the regular brake, set
the electric parking brake.
.To check the electric parking
brake's holding ability: With the
propulsion system active and the
electric drive unit in N (Neutral),
slowly remove foot pressure
from the regular brake pedal. Do
this until the vehicle is held by
the electric parking brake only.
.To check the P (Park)
mechanism's holding ability:
With the propulsion system
active, shift to P (Park). Then
release the electric parking
brake followed by the regular
brake.
Contact your dealer if service is
required.
Page 332 of 454

Black plate (28,1)Chevrolet Volt Owner Manual - 2012
10-28 Vehicle Care
Wiper Blade Replacement
Windshield wiper blades should be
inspected for wear and cracking.
SeeMaintenance Schedule on
page 11‑3 for more information.
Replacement blades come in
different types and are removed in
different ways. For proper type and
length, see Maintenance
Replacement Parts on page 11‑13.
Notice: Allowing the wiper arm to
touch the windshield when no
wiper blade is installed could
damage the windshield. Any
damage that occurs would not be
covered by your warranty. Do not
allow the wiper arm to touch the
windshield. To replace the windshield wiper
blade:
1. Pull the windshield wiper
assembly away from the
windshield.
2. Press the button in the middle ofthe wiper arm connector, and
pull the wiper blade away from
the arm connector.
3. Remove the wiper blade.
4. Reverse Steps 1 through 3 for wiper blade replacement.
Headlamp Aiming
Headlamp aim has been preset and
should need no further adjustment.
If the vehicle is damaged in a crash,
the headlamp aim may be affected.
If adjustment to the headlamps is
necessary, see your dealer.
Page 333 of 454

Black plate (29,1)Chevrolet Volt Owner Manual - 2012
Vehicle Care 10-29
Bulb Replacement
For the proper type of replacement
bulbs, seeReplacement Bulbs on
page 10‑32.
For any bulb‐changing procedure
not listed in this section, contact
your dealer.
Halogen Bulbs
{WARNING
Halogen bulbs have pressurized
gas inside and can burst if you
drop or scratch the bulb. You or
others could be injured. Be sure
to read and follow the instructions
on the bulb package.
LED Lighting
This vehicle has several LED lamps.
For replacement of any LED lighting
assembly, contact your dealer.
Headlamps
Driver Side Headlamps
To replace the high/low‐beam
headlamp:
1. Open the hood. See Hood on
page 10‑7.
2. Remove the cover from the back of the headlamp assembly by
turning it counterclockwise. 3. Remove the bulb socket from
the headlamp assembly by
turning it counterclockwise.
4. Remove the bulb from the socket.
5. Install the new bulb in the socket.
6. Install the bulb socket by turning it clockwise.
7. Install the cover in the back of the headlamp assembly by
turning it clockwise.
Page 334 of 454

Black plate (30,1)Chevrolet Volt Owner Manual - 2012
10-30 Vehicle Care
Passenger Side Headlamps
To replace the high/low‐beam
headlamp:
1. Open the hood. SeeHood on
page 10‑7.
2. Remove the air cleaner cover. See Engine Air Cleaner/Filter on
page 10‑13. 3. Remove the air cleaner
assembly by pulling up to
release the rear two retention
posts from the securing
grommets. Then pull it forward to
remove the remaining retention
post from the securing grommet.
4. Remove the cover from the back
of the headlamp assembly by
turning it counterclockwise.
5. Remove the bulb from the headlamp assembly by turning it
counterclockwise. 6. Disconnect the bulb from the
wiring harness connector.
7. Install the new bulb in the headlamp assembly by turning it
clockwise.
8. Reconnect the wiring harness connector.
9. Install the cover on the back of the headlamp assembly by
turning it clockwise.
10. Install the air cleaner assembly by lowering the three retention
posts into the grommets.
11. Install the engine air cleaner/ filter assembly cover. See
Engine Air Cleaner/Filter on
page 10‑13.
Page 335 of 454
Black plate (31,1)Chevrolet Volt Owner Manual - 2012
Vehicle Care 10-31
Back-Up Lamps
The back-up lamp is in the rear
fascia.
To replace a bulb:
1. Remove the three inboardscrews from the aero panel
located under the rear fascia.
2. Push up on the aero panel to locate the bulb socket. 3. Turn the bulb socket
counterclockwise to remove it
from the bulb assembly.
4. Pull the bulb from the bulb socket.
5. Push a new bulb straight into the bulb socket.
6. Reinstall the bulb socket by lining up the tabs in the lamp
assembly and turn it clockwise
to lock it into place.
7. Replace the three inboard screws from the aero panel.
License Plate Lamp
To replace one of these bulbs:
1. Press the spring clip on the right
end of the lamp assembly to the
left to unlock the lamp assembly.
2. Pull down on the lamp assembly to remove it from the fascia.
Page 336 of 454

Black plate (32,1)Chevrolet Volt Owner Manual - 2012
10-32 Vehicle Care
A. Bulb Socket
B. Bulb
C. Lamp Assembly
3. Turn the bulb socket (A) counterclockwise to remove it
from the lamp assembly (C).
4. Pull the bulb (B) straight out of the bulb socket (A).
5. Push the replacement bulb straight into the bulb socket (A)
and turn the bulb socket (A)
clockwise to install it into the
lamp assembly (C). 6. Reinstall the lamp assembly (C)
into the fascia by inserting the
left side first.
7. Push the spring clip side into place.
Replacement Bulbs
Exterior Lamp Bulb
Number
Back-Up Lamps 3157K
High/Low‐Beam
Headlamps HIR2 (9012)
License Plate
Lamps W5W LL
For replacement bulbs not listed
here, contact your dealer.
Electrical System
High Voltage Devices and
Wiring
{WARNING
Exposure to high voltage can
cause shock, burns, and even
death. The high voltage
components in the vehicle can
only be serviced by technicians
with special training.
High voltage components are
identified by labels. Do not
remove, open, take apart,
or modify these components.
High voltage cable or wiring has
orange covering. Do not probe,
tamper with, cut, or modify high
voltage cable or wiring.