
Black plate (41,1)Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada-7695131) -
2015 - crc - 4/25/14
Instruments and Controls 5-41
in the Maintenance Schedule. See
Maintenance Schedule on
page 11-2andEngine Oil on
page 10-9.
The oil life must be reset after each
oil change. Avoid accidental
resetting of the Engine Oil Life
System. It cannot be reset
accurately until the next oil change.
To reset the Engine Oil Life System,
see Engine Oil Life System on
page 10-12. The system is reset
when 100% displays.
Tire Pressure
The display will show a vehicle with
the approximate pressures of all
four tires. Tire pressure is displayed
in either kilopascals (kPa) or in
pounds per square inch (psi).
If a low or high tire pressure is
detected, a message is displayed
advising to check the tire pressure
in the specified tire. See Tire
Pressure on page 10-46 andTire
Messages on page 5-49. If the tire pressure display shows
dashes instead of a value, there
may be a problem with the vehicle.
See your dealer for service.
Vehicle Messages
Turn the SELECT knob to scroll
through any active warning
messages. Press SELECT to review
the messages.
Units
Turn the SELECT knob to change
the unit display to METRIC or US
when the display is active. Press
SELECT to confirm the setting. This
will change the displays on the
cluster and DIC to either metric or
English (US) measurements.
Tutorial Mode
Select this menu item to view a
screen that explains some of the
unique features of the cluster or the
Open Source Software information
for the cluster.
Tutorial mode is only available when
the vehicle is in P (Park).Power Gauge
Select this menu item the power
gauge.
The power gauge informs the driver
of the total power coming from the
engine or battery to operate the
vehicle. When in Regen mode, this
gauge will inform the driver of the
amount of power being restored to
the battery from the vehicle.
Following Distance Indication
Select this menu item to view the
following distance indication. See
“Following Distance Indication”
under
Forward Collision Alert (FCA)
System on page 9-37.
Turn-by-Turn
Select this menu item to view the
OnStar or Navigation System
Turn-by-Turn guidance. See the
infotainment manual.

Black plate (44,1)Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada-7695131) -
2015 - crc - 4/25/14
5-44 Instruments and Controls
Electric Drive Unit
Messages
SHIFT TO PARK
This message displays when the
vehicle should be shifted to
P (Park). This may appear when
attempting to turn off the vehicle
when it is not in P (Park).
Engine Cooling System
Messages
ENGINE OVERHEATED—
REDUCE SPEED
This message displays when the
engine coolant temperature or
engine oil is too hot. Reduce speed
and allow the vehicle to cool down.
ENGINE OVERHEATED —
TURN VEHICLE OFF
This message displays and a
continuous chime sounds if the
engine cooling system reaches
unsafe temperatures for operation.
Stop and turn off the vehicle as soon as it is safe to do so to avoid
severe damage. This message
clears when the engine has cooled
to a safe operating temperature.
ENGINE RUNNING DUE TO
TEMPERATURE
This message displays when the
high voltage battery is charged but
the engine has to come on because
of the outside temperature or high
voltage battery temperature.
Engine Oil Messages
CHANGE ENGINE OIL SOON
This message displays when the
engine oil needs to be changed.
After changing the engine oil, the
Engine Oil Life System must be
reset. See
Engine Oil Life System
on page 10-12 andDriver
Information Center (DIC) on
page 5-39 for information on how to
reset the system. See Engine Oil on
page 10-9 andMaintenance
Schedule on page 11-2.
OIL PRESSURE LOW —TURN
VEHICLE OFF
This message displays if low oil
pressure levels occur. Stop the
vehicle as soon as safely possible
and do not operate it until the cause
of the low oil pressure has been
corrected. Check the oil as soon as
possible and have the vehicle
serviced by your dealer.
Fuel System Messages
CLOSE FUEL DOOR
This message displays when the
fuel door is open and the vehicle is
moving.
ENGINE NOT AVAILABLE
ADD FUEL
This message displays when the
engine is not available due to
running out of fuel. The vehicle can
continue to be driven in Electric
Mode until the battery is depleted,
but will have reduced acceleration.

Black plate (47,1)Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada-7695131) -
2015 - crc - 4/25/14
Instruments and Controls 5-47
SERVICE PARKING ASSIST
This message displays if there is a
problem with the parking assist
system. Do not use this system to
help you park. SeeParking Assist
on page 9-39.
Propulsion Power
Messages
PROPULSION POWER IS
REDUCED
This message displays when the
propulsion power is reduced and
can affect the ability to accelerate.
If this message is on, but there is no
reduction in performance, proceed
to your destination. The
performance may be reduced the
next time the vehicle is driven. The
vehicle may be driven at a reduced
speed while this message is on, but
maximum acceleration and speed
may be reduced. If this message
stays on when the malfunction indicator lamp is on, the vehicle
should be taken to your dealer for
service as soon as possible.
This message can display when
driving in mountainous terrain
without using Mountain Mode or by
not entering Mountain Mode soon
enough to build a sufficient battery
charge reserve before climbing
steep grades. This is normal
operation to protect the high voltage
battery. Only if both the
PROPULSION POWER IS
REDUCED message and the
malfunction indicator lamp are on
should the vehicle be taken to the
dealer for service.
While climbing the grade with this
message displayed, the vehicle
speed may be reduced until the
engine can recover the battery state
of charge to a normal level. See
“Mountain Mode”
underDriver
Selected Operating Modes on
page 9-22.
Ride Control System
Messages
LOW TRACTION
This message displays when the
Antilock Brake System (ABS) is
active and is working to assist the
driver with control of the vehicle in
difficult driving conditions.
SERVICE STABILITRAK
This message displays when there
is a problem detected with the
StabiliTrak system. The vehicle is
safe to drive, but the StabiliTrak
system is not operational. See
Traction Control/Electronic Stability
Control on page 9-33 for information
on resetting the system.
SERVICE TRACTION
CONTROL
This message displays when there
is a problem detected with the
Traction Control System (TCS). The
vehicle is safe to drive, but the TCS
is not operational.

Black plate (48,1)Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada-7695131) -
2015 - crc - 4/25/14
5-48 Instruments and Controls
SeeTraction Control/Electronic
Stability Control on page 9-33 for
information on resetting the system.
STABILITRAK OFF
This message displays when
StabiliTrak is turned off. Adjust your
driving accordingly.
TRACTION CONTROL OFF
This message displays when the
Traction Control System (TCS) is
turned off. Adjust your driving
accordingly.
TRACTION CONTROL ON
This message displays when the
Traction Control System (TCS) is
turned on.
Airbag System Messages
SERVICE AIRBAG
This message displays if there is a
problem with the airbag system.
Take the vehicle to your dealer for
service.
Security Messages
SERVICE THEFT ALARM
This message displays if there is a
problem with the alarm. See your
dealer for service.
SERVICE THEFT DETERRENT
SYSTEM
This message displays if there is a
problem with the theft-deterrent
system. See your dealer for service.
Service Vehicle Messages
ENGINE MAINTENANCE XXX%
COMPLETE
This message displays when the
Engine Maintenance Mode is
running. See “Engine Maintenance
Mode” underMaintenance Modes
on page 9-25.
ENGINE NOT AVAILABLE
SERVICE SOON
This message displays when the
engine is not available due to a
malfunction that will not allow the
engine to start. The vehicle can
continue to be driven in Electric
Mode until the battery is depleted,
but will have reduced acceleration.
When this message is displayed,
the vehicle should be taken to your
dealer for service as soon as
possible. See Out of Fuel/Engine
Unavailable on page 9-25.
SERVICE AC SYSTEM
This message displays if there is a
problem with the air conditioning
system. Take the vehicle to your
dealer for service.
SERVICE HEATER SOON
This message displays if there is a
problem with the heater system.
Take the vehicle to your dealer for
service.

Black plate (12,1)Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada-7695131) -
2015 - crc - 4/25/14
10-12 Vehicle Care
Used oil can be a threat to the
environment. If you change your
own oil, be sure to drain all the oil
from the filter before disposal. Never
dispose of oil by putting it in the
trash or pouring it on the ground,
into sewers, or into streams or
bodies of water. Recycle it by taking
it to a place that collects used oil.
Engine Oil Life System
When to Change Engine Oil
This vehicle has a computer system
that indicates when to change the
engine oil and filter. This is based
on a combination of factors which
include engine revolutions, engine
temperature, and miles driven.
Based on driving conditions, the
mileage at which an oil change is
indicated can vary considerably. For
the oil life system to work properly,
the system must be reset every time
the oil is changed.
When the system has calculated
that oil life has been diminished, it
indicates that an oil change isnecessary. A CHANGE ENGINE
OIL SOON message comes on.
Change the oil as soon as possible
within the next 1 000 km (600 mi).
It is possible that, if driving under
the best conditions, the oil life
system might indicate that an oil
change is not necessary for up to
two years. The engine oil and filter
must be changed at least once
every two years and, at this time,
the system must be reset. Your
dealer has trained service people
who will perform this work and reset
the system. It is also important to
check the oil regularly over the
course of an oil drain interval and
keep it at the proper level.
If the system is ever reset
accidentally, the oil must be
changed at 5 000 km (3,000 mi)
since the last oil change.
Remember to reset the oil life
system whenever the oil is changed.
How to Reset the Engine Oil
Life System
Reset the system whenever the
engine oil is changed so that the
system can calculate the next
engine oil change. To reset the
system:
1. Select OIL LIFE on the
DIC menu.
2. Press SELECT to start the OIL LIFE reset procedure.
3. The DIC menu will display “Are
you sure that you want to reset?”
Use SELECT to choose YES to
reset oil life or NO to exit and
return to the previous menu.
4. If YES is selected, the DIC menu will display RESET OIL LIFE for
a short time and then 100% OIL
LIFE will be displayed when the
oil life system is successfully
reset.

Black plate (13,1)Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada-7695131) -
2015 - crc - 4/25/14
Vehicle Care 10-13
If the CHANGE ENGINE OIL SOON
message comes back on when the
vehicle is started, the engine oil life
system has not reset. Repeat the
procedure.
Engine Air Cleaner/Filter
SeeEngine Compartment Overview
on page 10-8 for the location of the
engine air cleaner/filter.
When to Inspect the Engine Air
Filter
Inspect the air filter at the scheduled
maintenance intervals and replace it
at the first oil change after each
80 000 km (50,000 mi) interval. See
Maintenance Schedule on
page 11-2 for more information.
If driving in dusty/dirty conditions,
inspect the air filter at each engine
oil change.
How to Inspect the Engine Air
Filter
To inspect the air filter, remove it
from the engine air cleaner/filter
assembly and lightly shake to release loose dust and dirt. If the air
filter remains covered with dirt, a
new air filter is required.
1. Retaining Clips
2. Air Duct Clamp
3. Electrical Connector
To inspect or replace the air filter:
1. Open the hood. See
Hood on
page 10-6. 2. Locate the engine air cleaner/
filter assembly on the passenger
side of the engine compartment.
See Engine Compartment
Overview on page 10-8.
3. Disconnect the air duct by loosening the air duct clamp (2).
4. Disconnect the electrical connector (3).
5. Lift the retaining clips (1) from the engine air cleaner/filter
assembly.
6. Turn and tilt the air cleaner cover slightly upward and slide it out.
Remove the air filter.
How to Reinstall the Engine
Air Filter
1. Install the air filter into theengine air cleaner/filter
assembly. The outer air filter
seal must be fitted properly in
the engine air cleaner/filter
assembly.

Black plate (27,1)Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada-7695131) -
2015 - crc - 4/25/14
Vehicle Care 10-27
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.
Bulb Replacement
For the proper type of replacement
bulbs, seeReplacement Bulbs on
page 10-30.
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 10-6.
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.

Black plate (52,1)Chevrolet VOLT Owner Manual (GMNA-Localizing-U.S./Canada-7695131) -
2015 - crc - 4/25/14
10-52 Vehicle Care
13. Set all four tires to therecommended air pressure
level as indicated on the Tire
and Loading Information label.
Tire Inspection
We recommend that the tires,
including the spare tire, if the
vehicle has one, be inspected
for signs of wear or damage at
least once a month.
Replace the tire if:
.The indicators at three or
more places around the tire
can be seen.
.There is cord or fabric
showing through the tire's
rubber.
.The tread or sidewall is
cracked, cut, or snagged
deep enough to show cord or
fabric.
.The tire has a bump, bulge,
or split.
.The tire has a puncture, cut,
or other damage that cannot
be repaired well because of
the size or location of the
damage.
Tire Rotation
Tires should be rotated every
12 000 km (7,500 mi). The first
rotation is the most important.
SeeMaintenance Schedule on
page 11-2.
Tires are rotated to achieve a
more uniform wear for all tires.
Anytime unusual wear is
noticed, rotate the tires as soon
as possible, check for proper tire
inflation pressure, and check for
damaged tires or wheels. If the
unusual wear continues after the
rotation, check the wheel
alignment. See When It Is Time
for New Tires on page 10-53
and Wheel Replacement on
page 10-58.
Use this rotation pattern when
rotating the tires.
Adjust the front and rear tires to
the recommended inflation
pressure on the Tire and
Loading Information label after
the tires have been rotated. See
Tire Pressure on page 10-46
and Vehicle Load Limits on
page 9-12.
Reset the Tire Pressure Monitor
System. See Tire Pressure
Monitor Operation on
page 10-48.