2012 CHEVROLET VOLT brake fluid

Black plate (5,1)Chevrolet Volt Owner Manual - 2012
Introduction v
Vehicle Symbol Chart
Here are some additional symbols
that may be found on the vehicle
and what they mean. For more
information on the symbol, refer to
the Index.
9:Airbag Readiness Light
#:Air Conditioning
!:Antilock Brake System (ABS)
b/g:Audio Steering Wheel
Controls or OnStar®
I: Brake System Warning
Light
A: Charge Port Door
":Charging System (12‐Volt
Battery)
I: Cruise Control
f: Electric Parking Brake
d:Electronic Stability
Control (ESC)
B: Engine Coolant Temperature
O:Exterior Lamps
y:Fault
g:First Responder
.: Fuel Gauge
+:Fuses
3: Headlamp High/Low-Beam
Changer
_: High Voltage
j:LATCH System Child
Restraints
[: Leaf
*:Malfunction Indicator Lamp
::Oil Pressure
O:Power
B:Remote Vehicle Start
>:Safety Belt Reminders
g:StabiliTrak®Disable
7:Tire Pressure Monitor
i:Traction Control System (TCS)
Disable
Q: Vehicle Ready
M:Windshield Washer Fluid

Black plate (48,1)Chevrolet Volt Owner Manual - 2012
5-48 Instruments and Controls
CHARGE CORD CONNECTED
This message displays when the
charge cord is connected to the
vehicle. The vehicle cannot be
shifted out of P (Park) with the
charge cord connected.
CHARGE DOOR OPEN
This message displays when the
charge door is open and the vehicle
is shifted out of P (Park).
LOW BATTERY
This message displays when the
12-volt battery voltage is low. See
Battery on page 10‑25for more
information.
SERVICE BATTERY
CHARGING SYSTEM
This message displays when there
is a fault in the 12-volt battery
charging system. Take the vehicle to
your dealer for service.
SERVICE HIGH VOLTAGE
CHARGING SYSTEM
This message displays when there
is a problem with the high voltage
charging system. See your dealer
for service.
Brake System Messages
BRAKE FLUID LOW
This message displays when the
brake fluid level is low. See Brake
Fluid on page 10‑23.
RELEASE PARKING BRAKE
This message displays if the electric
parking brake is on while the vehicle
is in motion. Release it before
attempting to drive. See Electric
Parking Brake on page 9‑34 for
more information.
SERVICE BRAKE ASSIST
This message displays when there
is a problem with the brake boost
assist system. When this message
displays, the brake boost assist
motor might be heard operating and
a pulsation may be felt in the brake
pedal. Take the vehicle to your
dealer for service.
SERVICE PARKING BRAKE
This message displays when there
is a problem with the parking brake.
Take the vehicle to your dealer for
service.
STEP ON BRAKE TO
RELEASE PARK BRAKE
This message displays when
attempting to release the electric
parking brake without the brake
pedal applied. See Electric Parking
Brake on page 9‑34 for more
information.

Black plate (6,1)Chevrolet Volt Owner Manual - 2012
9-6 Driving and Operating
Braking
Braking action involves perception
time and reaction time. Deciding to
push the brake pedal is perception
time. Actually doing it is
reaction time.
Average driver reaction time is
about three‐fourths of a second. In
that time, a vehicle moving at
100 km/h (60 mph) travels 20 m
(66 ft), which could be a lot of
distance in an emergency.
Helpful braking tips to keep in mind
include:
.Keep enough distance between
you and the vehicle in front
of you.
.Avoid needless heavy braking.
.Keep pace with traffic.If the engine ever stops while the
vehicle is being driven, brake
normally but do not pump the
brakes. Doing so could make the
pedal harder to push down. If the
engine stops, there will be some
power brake assist but it will be
used when the brake is applied.
Once the power assist is used up, it
can take longer to stop and the
brake pedal will be harder to push.
Steering
Electric Power Steering
Your vehicle has electric power
steering. It does not have power
steering fluid. Regular maintenance
is not required.
If power steering assist is lost due
to a system malfunction, the vehicle
can be steered, but may require
increased effort.
See specific vehicle steering
messages under
Vehicle Messages
on page 5‑47.
Curve Tips
.Take curves at a reasonable
speed.
.Reduce speed before entering a
curve.
.Maintain a reasonable steady
speed through the curve.
.Wait until the vehicle is out of
the curve before accelerating
gently into the straightaway.
Steering in Emergencies
.There are some situations when
steering around a problem may
be more effective than braking.
.Holding both sides of the
steering wheel allows you to turn
180 degrees without removing
a hand.
.The Antilock Brake System
(ABS) allows steering while
braking.

Black plate (9,1)Chevrolet Volt Owner Manual - 2012
Driving and Operating 9-9
Other Rainy Weather Tips
Besides slowing down, other wet
weather driving tips include:
.Allow extra following distance.
.Pass with caution.
.Keep windshield wiping
equipment in good shape.
.Keep the windshield washer fluid
reservoir filled.
.Have good tires with proper
tread depth. SeeTires on
page 10‑44.
.Turn off cruise control.
Highway Hypnosis
Always be alert and pay attention to
your surroundings while driving.
If you become tired or sleepy, find a
safe place to park the vehicle
and rest. Other driving tips include:
.Keep the vehicle well ventilated.
.Keep the interior
temperature cool.
.Keep your eyes moving
—scan
the road ahead and to the sides.
.Check the rearview mirror and
vehicle instruments often.
Hill and Mountain Roads
Driving on steep hills or through
mountains is different than driving
on flat or rolling terrain. See
“Mountain Mode” underDriver
Selected Operating Modes on
page 9‑25. Tips for driving in these
conditions include:
.Keep the vehicle serviced and in
good shape.
.Check all fluid levels and brakes,
tires, cooling system, and
electric drive unit.
.Keep the vehicle in gear when
going down steep or long hills.
{WARNING
Coasting downhill in N (Neutral)
or with the vehicle turned off is
dangerous. The brakes will have
to do all the work of slowing down
the vehicle and could become too
hot. Hot brakes may not be able
to slow the vehicle enough to
maintain speed and control. You
could crash. Always have the
vehicle running and in gear
(preferably LOW range) when
going downhill. This will allow the
electric drive unit to assist in
slowing and maintaining speed.
.Stay in your own lane. Do not
swing wide or cut across the
center of the road. Drive at
speeds that let you stay in your
own lane.
.Top of hills: Be
alert —something could be in
your lane (stalled car, accident).

Black plate (1,1)Chevrolet Volt Owner Manual - 2012
Vehicle Care 10-1
Vehicle Care
General Information
General Information . . . . . . . . . . 10-2
California Proposition65 Warning . . . . . . . . . . . . . . . . . 10-2
California Perchlorate Materials Requirements . . . . 10-2
Accessories and Modifications . . . . . . . . . . . . . . . 10-3
Lifting the Vehicle . . . . . . . . . . . . 10-3
Vehicle Checks
Doing Your Own Service Work . . . . . . . . . . . . . . . 10-6
Hood . . . . . . . . . . . . . . . . . . . . . . . . 10-7
Engine Compartment Overview . . . . . . . . . . . . . . . . . . . 10-8
Engine Oil . . . . . . . . . . . . . . . . . . . 10-9
Engine Oil Life System . . . . . 10-12
Engine Air Cleaner/Filter . . . . 10-13
Cooling System (Engine) . . . 10-15
Cooling System (High Voltage Battery) . . . . . . . . . . . 10-16
Cooling System (Power Electronics and Charger
Modules) . . . . . . . . . . . . . . . . . . 10-17
Engine Coolant . . . . . . . . . . . . . 10-18 Engine Overheating . . . . . . . . 10-21
Washer Fluid . . . . . . . . . . . . . . . 10-21
Brakes . . . . . . . . . . . . . . . . . . . . . 10-22
Brake Fluid . . . . . . . . . . . . . . . . . 10-23
Battery . . . . . . . . . . . . . . . . . . . . . 10-25
Electric Drive Unit Shift Lock
Control Function Check . . . 10-27
Park Brake and P (Park) Mechanism Check . . . . . . . . 10-27
Wiper Blade Replacement . . . . . . . . . . . . . . 10-28
Headlamp Aiming
Headlamp Aiming . . . . . . . . . . 10-28
Bulb Replacement
Bulb Replacement . . . . . . . . . . 10-29
Halogen Bulbs . . . . . . . . . . . . . . 10-29
LED Lighting . . . . . . . . . . . . . . . 10-29
Headlamps . . . . . . . . . . . . . . . . . 10-29
Back-Up Lamps . . . . . . . . . . . . 10-31
License Plate Lamp . . . . . . . . 10-31
Replacement Bulbs . . . . . . . . . 10-32
Electrical System
High Voltage Devices andWiring . . . . . . . . . . . . . . . . . . . . . 10-32
Electrical System Overload . . . . . . . . . . . . . . . . . . 10-33 Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . 10-34
Instrument Panel Fuse Block (Left Side) . . . . . . . . . . . . . . . . 10-38
Instrument Panel Fuse Block
(Right Side) . . . . . . . . . . . . . . . 10-40
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . 10-42
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . 10-44
Winter Tires . . . . . . . . . . . . . . . . 10-45
Tire Sidewall Labeling . . . . . . 10-45
Tire Designations . . . . . . . . . . . 10-46
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . 10-47
Tire Pressure . . . . . . . . . . . . . . . 10-50
Tire Pressure Monitor
System . . . . . . . . . . . . . . . . . . . 10-51
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . 10-53
Tire Inspection . . . . . . . . . . . . . . 10-57
Tire Rotation . . . . . . . . . . . . . . . 10-57
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . 10-58
Buying New Tires . . . . . . . . . . . 10-59
Different Size Tires and Wheels . . . . . . . . . . . . . . . . . . . 10-61

Black plate (9,1)Chevrolet Volt Owner Manual - 2012
Vehicle Care 10-9
A. Engine Coolant Surge Tank andPressure Cap. See Engine
Coolant on page 10‑18.
B. Engine Air Cleaner/Filter on
page 10‑13.
C. Engine Oil Dipstick. See Engine
Oil on page 10‑9.
D. High Voltage Battery Coolant Reservoir and Pressure Cap.
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.
E. Engine Cover.
F. Engine Oil Fill Cap. See Engine
Oil on page 10‑9.
G. Power Electronics Coolant Reservoir and Pressure Cap.
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.
H. Brake Fluid Reservoir. See “Brake Fluid” underBrakes on
page 10‑22.
I. High Voltage Cables (Orange Color).
J. Remote Positive (+) Terminal. See Jump Starting on
page 10‑75.
K. Power Electronics Module.
L. Windshield Washer Fluid Reservoir. See “Adding Washer
Fluid” under Washer Fluid on
page 10‑21.
M. Remote Negative (−) Terminal. See Jump Starting on
page 10‑75.
N. Engine Compartment Fuse
Block on page 10‑34.Engine Oil
To ensure proper engine
performance and long life, careful
attention must be paid to engine oil.
Following these simple, but
important steps will help protect
your investment:
.Always use engine oil approved
to the proper specification and of
the proper viscosity grade. See
“Selecting the Right Engine Oil”
in this section.
.Check the engine oil level
regularly and maintain the
proper oil level. See “Checking
Engine Oil” and“When to Add
Engine Oil” in this section.
.Change the engine oil at the
appropriate time. See Engine Oil
Life System on page 10‑12.
.Always dispose of engine oil
properly. See “What to Do with
Used Oil” in this section.

Black plate (22,1)Chevrolet Volt Owner Manual - 2012
10-22 Vehicle Care
Notice
.When using concentrated
washer fluid, follow the
manufacturer's instructions
for adding water.
.Do not mix water with
ready-to-use washer fluid.
Water can cause the solution
to freeze and damage the
washer fluid tank and other
parts of the washer system.
Also, water does not clean as
well as washer fluid.
.Fill the washer fluid tank only
three-quarters full when it is
very cold. This allows for
fluid expansion if freezing
occurs, which could damage
the tank if it is
completely full.
.Do not use engine coolant
(antifreeze) in the windshield
washer. It can damage the
windshield washer system
and paint.
Brakes
This vehicle has disc brakes. Disc
brake pads have built-in wear
indicators that make a high-pitched
warning sound when the brake pads
are worn and new pads are needed.
The sound can come and go or be
heard all the time the vehicle is
moving, except when applying the
brake pedal firmly.
{WARNING
The brake wear warning sound
means that soon the brakes will
not work well. That could lead to
a crash. When the brake wear
warning sound is heard, have the
vehicle serviced.
Notice: Continuing to drive with
worn-out brake pads could result
in costly brake repair. Some driving conditions or climates
can cause a brake squeal when the
brakes are first applied or lightly
applied. This does not mean
something is wrong with the brakes.
Properly torqued wheel nuts are
necessary to help prevent brake
pulsation. When tires are rotated,
inspect brake pads for wear and
evenly tighten wheel nuts in the
proper sequence to torque
specifications in
Capacities and
Specifications on page 12‑2.
Brake linings should always be
replaced as complete axle sets.

Black plate (23,1)Chevrolet Volt Owner Manual - 2012
Vehicle Care 10-23
Brake Pedal Travel
See your dealer if the brake pedal
does not return to normal height,
or if there is a rapid increase in
pedal travel. This could be a sign
that brake service might be
required.
Brake Adjustment
Every time the brakes are applied,
with or without the vehicle moving,
the brakes adjust for wear.
Replacing Brake System Parts
The braking system on a vehicle is
complex. Its many parts have to be
of top quality and work well together
if the vehicle is to have really good
braking. The vehicle was designed
and tested with top-quality brake
parts. When parts of the braking
system are replaced, be sure to get
new, approved replacement parts.If this is not done, the brakes might
not work properly. For example,
installing disc brake pads that are
wrong for the vehicle, can change
the balance between the front and
rear brakes
—for the worse. The
braking performance expected can
change in many other ways if the
wrong replacement brake parts are
installed.
Brake Fluid
The brake master cylinder reservoir
is filled with DOT 3 brake fluid as
indicated on the reservoir cap. See
Engine Compartment Overview on
page 10‑8 for the location of the
reservoir. There are only two reasons why the
brake fluid level in the reservoir
might go down:
.The brake fluid level goes down
because of normal brake lining
wear. When new linings are
installed, the fluid level goes
back up.
.A fluid leak in the brake
hydraulic system can also cause
a low fluid level. Have the brake
hydraulic system fixed, since a
leak means that sooner or later
the brakes will not work well.