service CHEVROLET VOLT 2011 Owner's Guide

Black plate (20,1)Chevrolet Volt Owner Manual - 2011
5-20 Instruments and Controls
A message may also display in the
Driver Information Center (DIC).
SeeAirbag System Messages on
page 5‑51 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.
Passenger Airbag Status
Indicator
The vehicle has a passenger
sensing system. See Passenger
Sensing System on page 3‑33
for important safety information.
The passenger airbag status
indicator is in the overhead console.
When the vehicle is started, the
passenger airbag status indicator
will light ON and OFF for several
seconds as a system check. Then, after several more seconds,
the status indicator will light either
ON or OFF to let you know the
status of the right front passenger
frontal airbag and the passenger
knee airbag.
If the word ON is lit on the
passenger airbag status indicator, it
means that the right front passenger
frontal airbag and the passenger
knee airbag are enabled and may
inflate.
If the word OFF is lit on the airbag
status indicator, it means that the
passenger sensing system has
turned off the right front passenger
frontal airbag and the passenger
knee airbag.

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Instruments and Controls 5-21
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. SeeAirbag Readiness
Light on page 5‑19 for more
information, including important
safety information.
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 9‑18
for more information.

Black plate (22,1)Chevrolet Volt Owner Manual - 2011
5-22 Instruments and Controls
If the malfunction indicator lamp
comes on and stays on, while the
vehicle 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 service 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. 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 10‑4. 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.

Black plate (23,1)Chevrolet Volt Owner Manual - 2011
Instruments and Controls 5-23
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 the electrical system
is not wet. The system could
be wet if the vehicle was
driven through a deep puddle of
water. The condition is usually
corrected when the electrical
system dries out. A few driving
trips 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.
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.
Here are some things to know to
help the vehicle pass an inspection:
.The vehicle will 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.

Black plate (24,1)Chevrolet Volt Owner Manual - 2011
5-24 Instruments and Controls
.The vehicle will not pass
this inspection if the OBD II
(On-Board Diagnostic) 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.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.
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.

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Instruments and Controls 5-25
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.
SeeElectric Parking Brake on
page 9‑35 for more information.
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. See
Electric
Parking Brake on page 9‑35 for
more information. If a message
displays in the Driver Information
Center (DIC), see Brake System
Messages on page 5‑46 for more
information.

Black plate (26,1)Chevrolet Volt Owner Manual - 2011
5-26 Instruments and Controls
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 issafe 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 10‑84.
Sport Mode Light
This light comes on when Sport
Mode is selected. See “Sport Mode”
in Driver Selected Operating Modes
on page 9‑26 for more information.
Mountain Mode Light
This light comes on when Mountain
Mode is selected. See “Mountain
Mode” inDriver Selected Operating
Modes on page 9‑26 for more
information.

Black plate (27,1)Chevrolet Volt Owner Manual - 2011
Instruments and Controls 5-27
Traction Control System
(TCS)/StabiliTrak®Light
This light comes on briefly while
starting the vehicle.
If it does not, have the vehicle
serviced by your dealer. If the
system is working normally the
indicator light then goes off.
If the light comes on and stays
on while driving, there could be a
problem with the TCS/StabiliTrak
system and the vehicle might need
service. When this warning light is
on, the TCS/StabiliTrak system is
off and does not limit wheel spin.
The light flashes if the system is
active and is working to assist the
driver with directional control of the
vehicle in difficult driving conditions.
Engine Coolant
Temperature Warning
Light
The engine coolant temperature
warning light comes on briefly when
the vehicle is started.
If it does not, have the vehicle
serviced by your dealer. If the
system is working normally the
indicator light then goes off.
If the light comes on and stays
on while driving, the vehicle may
have a problem with the cooling
system. Stop and turn off the
vehicle to avoid damage to the
engine. A warning chime sounds
when this light is on.
SeeEngine Overheating on
page 10‑23 for more information.
Tire Pressure Light
For vehicles with the Tire Pressure
Monitor System (TPMS), this light
comes on briefly when the vehicle is
in ON/RUN. It provides information
about tire pressures and the TPMS.
When the Light is On Steady
This indicates that one or more
of the tires are significantly
underinflated.
A message in the Driver Information
Center (DIC) may also display.
SeeTire Messages on page 5‑52
for more information. Stop as soon
as possible, and inflate the tires to
the pressure value shown on the
Tire and Loading Information Label.
See Tires on page 10‑48 for more
information.

Black plate (28,1)Chevrolet Volt Owner Manual - 2011
5-28 Instruments and Controls
When the Light Flashes First and
Then is On Steady
This indicates that there may be
a problem with the Tire Pressure
Monitor System. The light flashes
for about one minute and stays on
steady until the vehicle is in OFF.
This sequence repeats each time
the vehicle is in ON/RUN. SeeTire
Pressure Monitor System on
page 10‑55 for more information.
Engine Oil Pressure Light
{WARNING
Do not keep driving if the oil
pressure is low. The engine can
become so hot that it catches
fire. Someone could be burned.
Check the oil as soon as possible
and have the vehicle serviced. Notice:
Lack of proper engine
oil maintenance can damage the
engine. The repairs would not be
covered by the vehicle warranty.
Always follow the maintenance
schedule for changing engine oil.
The oil pressure light should come
on briefly as the vehicle is started.
If it does not come on have the
vehicle serviced by your dealer.
If the light comes on and stays on, it
means that oil is not flowing through
the engine properly. The vehicle
could be low on oil and might
have some other system problem.
See your dealer.
Low Fuel Warning Light
The low fuel warning light comes on
briefly when the vehicle is started.
This light also comes on when the
fuel level is low. When fuel is added,
the light should go off. If it does not,
have the vehicle serviced.

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Security Light
This light comes on briefly when the
vehicle is started.
If the light remains on while driving,
there is a problem with the security
system. See your dealer for service.
For more information, seeVehicle
Security on page 2‑13.
High-Beam On Light
The high-beam on light comes on
when the high-beam headlamps are
in use.
See Headlamp High/Low-Beam
Changer on page 6‑2 for more
information.
Lamps On Reminder
This light comes on when the
parking lamps, headlamps,
or taillamps are on.
Cruise Control Light
The cruise control light comes on
when the cruise control is turned on
and turns green when cruise control
is engaged.
See Cruise Control on page 9‑40 for
more information.