2012 CHEVROLET VOLT service

Black plate (12,1)Chevrolet Volt Owner Manual - 2012
5-12 Instruments and Controls
A.Battery Gauge (High Voltage)
on page 5‑14.
B. Fuel Gauge on page 5‑15.
C. Service Electric Parking Brake
Light on page 5‑23.
D. Security Light on page 5‑27.
E. Engine Coolant Temperature
Warning Light on page 5‑25.
F. Charging System Light (12-Volt
Battery) on page 5‑19.
G. Engine Oil Pressure Light on
page 5‑26.
H. High-Beam On Light on
page 5‑27.
I. Second Row Passenger Safety Belt Reminder Light. See Safety
Belt Reminders on page 5‑16.
J. Turn and Lane-Change Signals
on page 6‑4.
K. Compass on page 5‑14.
L. Speedometer on page 5‑14. M.
Cruise Control Light on
page 5‑28.
N. Electric Parking Brake Light on
page 5‑22.
O. Door, Hood, or Hatch Open
Light on page 5‑28.
P. Low Fuel Warning Light on
page 5‑27.
Q. Antilock Brake System (ABS)
Warning Light on page 5‑23.
R. Electric Drive Unit Positions. See Electric Drive Unit on
page 9‑31.
S. Driver Efficiency Gauge on
page 5‑15.
T. Brake System Warning Light on
page 5‑22.
U. Driver Safety Belt Reminder Light. See Safety Belt
Reminders on page 5‑16.
V. Airbag Readiness Light on
page 5‑17. W.
Total Vehicle Range on
page 5‑15.
X. Vehicle Ready Light on
page 5‑27.
Y. StabiliTrak
®OFF Light on
page 5‑24.
Z. Driver Information Center (DIC)
on page 5‑45.
AA. Traction Off Light on page 5‑24.
AB. Sport Mode Light on page 5‑24
and Mountain Mode Light on
page 5‑24.
AC. Lamps On Reminder on
page 5‑28.
AD. Odometer on page 5‑14.
AE. Malfunction Indicator Lamp on
page 5‑19.
AF. Traction Control System (TCS)/
StabiliTrak
®Light on page 5‑25.
AG. Tire Pressure Light on
page 5‑25.

Black plate (17,1)Chevrolet Volt Owner Manual - 2012
Instruments and Controls 5-17
their safety belts. After the
passenger safety belt is buckled,
the corresponding safety belt
symbol in the instrument cluster
turns green. If a safety belt is not
initially buckled, the instrument
cluster displays a gray safety belt
symbol. While the vehicle is moving,
if a second row passenger who was
previously buckled becomes
unbuckled, the corresponding safety
belt symbol will change to flashing
red for several seconds and a chime
may sound.Airbag Readiness Light
This light shows if there is an
electrical problem. The system
check includes the airbag sensor,
passenger sensing system, the
pretensioners, the airbag modules,
the wiring, and the crash sensing
and diagnostic module. For more
information on the airbag system,
seeAirbag System on page 3‑19.
The airbag readiness light comes on
and stays on for several seconds
when the vehicle is started. Then
the light goes out. A message may also display in the
Driver Information Center (DIC).
See
Airbag System Messages on
page 5‑53 for more information.
{WARNING
If the airbag readiness light stays
on after the vehicle is started or
comes on while driving, it means
the airbag system might not be
working properly. The airbags in
the vehicle might not inflate in a
crash, or they could even inflate
without a crash. To help avoid
injury, have the vehicle serviced
right away.

Black plate (18,1)Chevrolet Volt Owner Manual - 2012
5-18 Instruments and Controls
Passenger Airbag Status
Indicator
The vehicle has a passenger
sensing system. SeePassenger
Sensing System on page 3‑26 for
important safety information. The
passenger airbag status indicator is
in the overhead console.
United States
Canada When the vehicle is started, the
passenger airbag status indicator
will light ON and OFF, or the symbol
for on and off for several seconds
as a system check. Then, after
several more seconds, the status
indicator will light either ON or OFF,
or the on or off symbol to let you
know the status of the front
outboard passenger frontal airbag
and knee airbag.
If the word ON or the on symbol is
lit on the passenger airbag status
indicator, it means that the front
outboard passenger frontal airbag
and knee airbag are allowed to
inflate.
If the word OFF or the off symbol is
lit on the airbag status indicator, it
means that the passenger sensing
system has turned off the front
outboard passenger frontal airbag
and knee airbag.
If, after several seconds, both status
indicator lights remain on, or if there
are no lights at all, there may be a
problem with the lights or the
passenger sensing system. See
your dealer for service.
{WARNING
If the airbag readiness light ever
comes on and stays on, it means
that something may be wrong
with the airbag system. To help
avoid injury to yourself or others,
have the vehicle serviced right
away. See
Airbag Readiness
Light on page 5‑17 for more
information, including important
safety information.

Black plate (19,1)Chevrolet Volt Owner Manual - 2012
Instruments and Controls 5-19
Charging System Light
(12-Volt Battery)
The charging system light comes on
briefly when the vehicle is in ON/
RUN, as a check to show the light is
working.
If the light stays on, or comes on
while driving, there could be a
problem with the electrical charging
system. Have it checked by your
dealer. Driving while this light is on
could drain the 12‐volt battery.
If a short distance must be driven
with the light on, be sure to turn off
all accessories, such as the radio.
Malfunction
Indicator Lamp
A computer system called OBD II
(On-Board Diagnostics-Second
Generation) monitors operation of
the fuel, ignition, and emission
control systems. It ensures that
emissions are at acceptable levels
for the life of the vehicle, helping to
produce a cleaner environment.
This light comes on when the
vehicle is placed in Service Only
Mode, as a check to show it is
working. If it does not, have the
vehicle serviced by your dealer. See
Power Button on page 9‑18for more
information.
If the malfunction indicator lamp
comes on and stays on, while the
engine is in ON/RUN, this indicates
that there is an OBD II problem and
service is required.
Malfunctions often are indicated by
the system before any problem is
apparent. Being aware of the light
can prevent more serious damage
to the vehicle. This system assists
the dealer technician in correctly
diagnosing any malfunction.
Notice: If the vehicle is
continually driven with this light
on, the emission controls might
not work as well, the vehicle fuel
economy might not be as good,
and the engine might not run as
smoothly. This could lead to
costly repairs that might not be
covered by the vehicle warranty.

Black plate (20,1)Chevrolet Volt Owner Manual - 2012
5-20 Instruments and Controls
Notice:Modifications made to
the engine, electric drive unit,
exhaust, intake, or fuel system of
the vehicle or the replacement of
the original tires with other
than those of the same Tire
Performance Criteria (TPC) can
affect the vehicle emission
controls and can cause this light
to come on. Modifications to
these systems could lead to
costly repairs not covered by the
vehicle warranty. This could also
result in a failure to pass a
required Emission Inspection/
Maintenance test. See
Accessories and Modifications on
page 10‑3.
This light comes on during a
malfunction in one of two ways:
Light Flashing: A misfire condition
has been detected. A misfire
increases vehicle emissions and
could damage the emission control
system on the vehicle. Diagnosis
and service might be required. The following can prevent more
serious damage to the vehicle:
.Reduce vehicle speed.
.Avoid hard accelerations.
.Avoid steep uphill grades.
If the light continues to flash, when
it is safe to do so, stop the vehicle.
Find a safe place to park the
vehicle. Turn the vehicle off, wait at
least 10 seconds, and restart the
vehicle. If the light is still flashing,
follow the previous steps and see
your dealer for service as soon as
possible.
Light On Steady: An emission
control system malfunction has
been detected on the vehicle.
Diagnosis and service might be
required. The following may correct an
emission system malfunction:
.Check that the fuel cap is fully
installed. The diagnostic system
can determine if the fuel cap has
been left off or improperly
installed. A loose or missing fuel
cap allows fuel to evaporate into
the atmosphere. A few driving
trips with the cap properly
installed should turn the light off.
.Check that good quality fuel is
used. Poor fuel quality causes
the engine not to run as
efficiently as designed and may
cause stalling after start-up or
misfiring. These conditions might
go away once the engine is
warmed up.
If one or more of these
conditions occurs, change the
fuel brand used. It will require at
least one full tank of the proper
fuel to turn the light off.

Black plate (21,1)Chevrolet Volt Owner Manual - 2012
Instruments and Controls 5-21
If none of the above have made the
light turn off, your dealer can check
the vehicle. The dealer has the
proper test equipment and
diagnostic tools to fix any
mechanical or electrical problems
that might have developed.
Emissions Inspection and
Maintenance Programs
Some state and local governments
have or might begin programs to
inspect the emission control
equipment on the vehicle. Failure to
pass this inspection could prevent
getting a vehicle registration.The DLC is under the instrument
panel to the left of the steering
wheel. See your dealer if assistance
is needed.
The vehicle may not pass
inspection if:
.The vehicle may not pass this
inspection if the malfunction
indicator lamp is on while the
vehicle is in ON/RUN, or if the
vehicle is placed in Service Only
Mode and the malfunction
indicator lamp does not come
on. See your dealer for
assistance in verifying proper
operation of the malfunction
indicator lamp.
.The vehicle may not pass this
inspection if the OBD II
(On-Board Diagnostics) system
determines that critical emission
control systems have not been
completely diagnosed by the
system. The vehicle would be
considered not ready for
inspection. This can happen if
the 12‐volt battery has recently
been replaced or if the 12‐volt
battery has run down. The
diagnostic system is designed to
evaluate critical emission control
systems during normal driving.
This can take several days of
routine driving. If this has been
done and the vehicle still does
not pass the inspection for lack
of OBD II system readiness, your
dealer can prepare the vehicle
for inspection.

Black plate (22,1)Chevrolet Volt Owner Manual - 2012
5-22 Instruments and Controls
Brake System Warning
Light
The vehicle brake system consists
of two hydraulic circuits. If one
circuit is not working, the remaining
circuit can still work to stop the
vehicle. For normal braking
performance, both circuits need to
be working.
If the warning light comes on, there
is a brake problem. Have the brake
system inspected right away.
MetricEnglish
This light comes on briefly when the
vehicle is turned on. If it does not
come on then, have it fixed so it will
be ready to warn if there is a
problem. If the light comes on and stays on,
there is a base brake problem.
{WARNING
The brake system might not be
working properly if the brake
system warning light is on.
Driving with the brake system
warning light on can lead to a
crash. If the light is still on after
the vehicle has been pulled off
the road and carefully stopped,
have the vehicle towed for
service.
Electric Parking Brake
Light
This status light comes on when the
parking brake is applied. If the light
flashes and stays on after the
parking brake is released, or while
driving, there is a problem with the
electric parking brake system.
If the light does not come on,
or remains flashing, see your dealer.
See
Electric Parking Brake on
page 9‑34 for more information.

Black plate (23,1)Chevrolet Volt Owner Manual - 2012
Instruments and Controls 5-23
Service Electric Parking
Brake Light
The Service Electric Parking Brake
light should come on briefly when
the vehicle is in ON/RUN. If it does
not come on, have it fixed so it will
be ready to warn if there is a
problem.
If this light stays on, there is a
problem with a system on the
vehicle that is causing the parking
brake system to work at a reduced
level. The vehicle can still be driven,
but should be taken to a dealer as
soon as possible. SeeElectric
Parking Brake on page 9‑34 for
more information. If a message
displays in the Driver Information Center (DIC), see
Brake System
Messages on page 5‑48 for more
information.
Antilock Brake System
(ABS) Warning Light
This light should come on briefly
when the vehicle is in ON/RUN. If it
does not come on, have the vehicle
serviced by your dealer.
If the ABS warning light stays on
longer than a few seconds after the
vehicle is in ON/RUN, or comes on
and stays on while driving, try
resetting the system. To reset the
system:
1. While driving, pull over when it is safe to do so.
2. Place the vehicle in P (Park). 3. Turn the vehicle off.
4. Restart the vehicle.
If the ABS warning light remains on
after resetting the system or comes
on again while driving, the vehicle
needs service. If the ABS warning
light is on, but the regular brake
system warning light is not on, the
antilock brakes are not working
properly, but the regular brakes are
still functioning. Have the vehicle
serviced right away. If both brake
lights are on, the vehicle does not
have antilock brakes, and there is a
problem with the regular brakes as
well. Have the vehicle towed for
service. See
Towing the Vehicle on
page 10‑81.