2012 CHEVROLET VOLT service

Black plate (4,1)Chevrolet Volt Owner Manual - 2012
14-4 OnStar
Connections
OnStar Hands-Free Calling allows
calls to be made and received from
the vehicle. The vehicle can also be
controlled from a cell phone through
the OnStar mobile app. See
www.onstar.com for coverage maps.
Hands-Free Calling
1. PushX. System responds:
“OnStar ready.”
2. Say “Dial.”System responds:
“Please say the name or number
to call.”
3. Say the entire number without pausing, including a “1”and the
area code. System responds:
“OK calling.”
Retrieve My Number
1. PushX. System responds:
“OnStar ready.”
2. Say “My Number.” System
responds: “Your OnStar
Hands-Free Calling number is.”
End a Call
PushX. System responds: “Call
ended.”
Store a Name Tag for Speed
Dialing
1. PushX. System responds:
“OnStar ready.”
2. Say “Store.” System responds:
“Please say the number you
would like to store.”
3. Say the entire number without pausing. System responds:
“Please say the name tag.”
4. Pick a name tag. “System
responds:”About to store
. Does that
sound OK?”
5. Say “Yes”or“No” to try again.
System responds: “OK, storing
.”
Place a Call Using a Stored
Number
1. PushX. System responds:
“OnStar ready.”
2. Say “Call .” System
responds: “OK, calling
.”
Verify Minutes and Expiration
PushXand say “minutes” then
“verify” to check how many minutes
remain and their expiration date.
OnStar Mobile App
With an iPhone®or
Android™-based mobile device, an
OnStar mobile app can be
downloaded. The vehicle can be
remote started, if equipped, or the
doors can be unlocked from
anywhere there is cell phone
service. It can also check the fuel
level, tire pressure, and oil life.
It can connect to an OnStar Advisor
anytime. For OnStar mobile app
compatibility or further information,
see www.onstar.com.

Black plate (5,1)Chevrolet Volt Owner Manual - 2012
OnStar 14-5
Diagnostics
OnStar Vehicle Diagnostics will
perform a vehicle check every
month. It will check the engine,
transmission, antilock brakes, and
major vehicle systems. It also
checks the tire pressures, if the
vehicle is equipped with the Tire
Pressure Monitoring System. If a
diagnostics check is needed
between e-mails, push
Q, and an
Advisor can run a check.
OnStar Additional
Information
Transferring Service
PushQto request account transfer
eligibility information. The Advisor
can assist in canceling or removing
account information. If OnStar
receives information that vehicle
ownership has changed, OnStar
may send a voice message to the
vehicle, requesting updated account
information.
Reactivation for Subsequent
Owners
PushQand follow the prompts to
speak to an Advisor as soon as
possible after acquiring the vehicle.
The Advisor will update vehicle
records and will explain the OnStar
service offers and options available.
How OnStar Service Works
Automatic Crash Response,
Emergency Services, Crisis Assist,
Stolen Vehicle Assistance, Vehicle
Diagnostics, Remote Door Unlock,
Roadside Assistance, Turn-by-Turn
Navigation, and Hands-Free Calling
are available on most vehicles. Not
all OnStar services are available
everywhere or on all vehicles. For
more information, a full description
of OnStar services, system
limitations, and OnStar terms and
conditions, see www.onstar.com
(U.S.) or www.onstar.ca (Canada);
contact OnStar at 1-888-4-ONSTAR
(1‐888‐466‐7827) or TTY
1‐877‐248‐2080; or push
Qto
speak with an Advisor. OnStar
services require a vehicle electrical
system, wireless service, and GPS
satellite technologies to be available
and operating for features to
function properly. These systems
may not operate if the battery is
discharged or disconnected.

Black plate (6,1)Chevrolet Volt Owner Manual - 2012
14-6 OnStar
OnStar service cannot work unless
your vehicle is in a place where
OnStar has an agreement with a
wireless service provider for service
in that area, and the wireless
service provider has coverage,
network capacity, reception, and
technology compatible with OnStar’s
service. Service involving location
information about the vehicle cannot
work unless GPS signals are
available, unobstructed, and
compatible with the OnStar
hardware. OnStar service may not
work if the OnStar equipment is not
properly installed or it has not been
properly maintained. If equipment or
software is added, connected,
or modified, OnStar service may not
work. Other problems beyond
OnStar ’s control may prevent
service such as hills, tall buildings,
tunnels, weather, electrical system
design and architecture of the
vehicle, damage to the vehicle in a
crash, or wireless phone network
congestion or jamming. See
Radio Frequency Statement on
page 13‑17 for information
regarding Part 15 of the Federal
Communications Commission (FCC)
rules and Industry Canada
Standards RSS-GEN/210/220/310.
Services for People with
Disabilities
Advisors provide services to help
subscribers with physical disabilities
and medical conditions.
Push
Qfor help with:
.Locating a gas station with an
attendant to pump gas.
.Finding a hotel, restaurant, etc.,
that meets accessibility needs.
.Providing directions to the
closest hospital or pharmacy in
urgent situations.
TTY Users
OnStar has the ability to
communicate to the deaf,
hard‐of‐hearing, or speech‐impaired
customers while in the vehicle. The
available dealer‐installed TTY
system can provide in-vehicle
access to all of the OnStar services,
except Virtual Advisor and OnStar
Turn‐by‐Turn Navigation.
Onstar.com
The website provides access to
account information, manages the
OnStar subscription, and allows
viewing of videos of each service.
Get subscription plan pricing and
sign up for OnStar Vehicle
Diagnostics. Click on the “My
Account” tab on the home page.

Black plate (7,1)Chevrolet Volt Owner Manual - 2012
OnStar 14-7
OnStar Personal Identification
Number (PIN)
A PIN is needed to access some of
the OnStar services, like Remote
Door Unlock and Stolen Vehicle
Assistance. You will be prompted to
change the PIN the first time when
speaking with an Advisor. To
change the OnStar PIN, call OnStar
and provide the Advisor with the
current number.
Warranty
OnStar equipment may be
warranted as part of the new-vehicle
limited warranty. The manufacturer
of the vehicle furnishes detailed
warranty information.
Languages
The vehicle can be programmed to
respond in French or Spanish. Push
Qand ask an Advisor. Advisors
can speak French or Spanish.
Potential Issues
Some OnStar services are disabled
after five days. OnStar cannot
perform Remote Door Unlock or
Stolen Vehicle Assistance after the
vehicle has been off continuously
for five days. After five days, OnStar
can contact Roadside Assistance
and a locksmith to help gain access
to the vehicle.
Global Positioning
System (GPS)
.Obstruction of the GPS can
occur in a large city with tall
buildings; in parking garages;
around airports; in tunnels,
underpasses, or parking
garages; or in an area with very
dense trees. If GPS signals are
not available, the OnStar system
should still operate to call
OnStar. However, OnStar could
have difficulty identifying the
exact location.
.In emergency situations, OnStar
can use the last stored GPS
location to send to emergency
responders.
.A temporary loss of GPS can
cause loss of the ability to send
a Turn-by-Turn Navigation route.
The Advisor may give a verbal
route or may ask for a call back
after the vehicle is driven into an
open area.
Cellular and GPS Antennas
Avoid placing items over or near the
antenna to prevent blocking cellular
and GPS signal reception. Cellular
reception is required for OnStar to
send remote signals to the vehicle.

Black plate (8,1)Chevrolet Volt Owner Manual - 2012
14-8 OnStar
Unable to Connect to OnStar
Message
If there is limited cellular coverage
or the cellular network has reached
maximum capacity, this message
may come on. Push
Qto try the
call again or try again after driving a
few miles into another cellular area.
Vehicle and Power Issues
OnStar services require a vehicle
electrical system, wireless service,
and GPS satellite technologies to be
available and operating for features
to function properly. These systems
may not operate if the battery is
discharged or disconnected.
Add-on Electrical Equipment
The OnStar system is integrated
into the electrical architecture of the
vehicle. Do not add any electrical
equipment. See Add-On Electrical
Equipment on page 9‑65. Added
electrical equipment may interfere
with the operation of the OnStar
system and cause it to not operate.
Privacy
The complete OnStar Privacy
Statement may be found at
www.onstar.com. Privacy-sensitive
users of wireless communications
are cautioned that the privacy of any
information sent via wireless cellular
communications cannot be assured.
Third parties may unlawfully
intercept or access transmissions
and private communications without
consent.

Black plate (3,1)Chevrolet Volt Owner Manual - 2012
INDEX i-3
Cooling System . . . . . . . . 10-15–10-17Engine Messages . . . . . . . . . . . . 5-49
Courtesy Transportation Program . . . . . . . . . . . . . . . . . . . . . . 13-9
Cover Cargo . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Cruise Control . . . . . . . . . . . . . . . . . 9-40
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 5-28
Messages . . . . . . . . . . . . . . . . . . . . 5-49
Customer Assistance . . . . . . . . . . 13-4 Offices . . . . . . . . . . . . . . . . . . . . . . . . 13-3
Text Telephone (TTY)
Users . . . . . . . . . . . . . . . . . . . . . . . 13-4
Customer Information Service PublicationsOrdering Information . . . . . . 13-13
Customer Satisfaction Procedure . . . . . . . . . . . . . . . . . . . . 13-1
D
Damage Repair, Collision . . . . . 13-10
Danger, Warnings, andCautions . . . . . . . . . . . . . . . . . . . . . . . . iv
Data Recorders, Event . . . . . . . 13-16
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . 6-2 Defensive Driving . . . . . . . . . . . . . . . 9-5
Delayed Charging Override . . . . 9-51
Delayed Locking . . . . . . . . . . . . . . . 2-13
Devices, Auxiliary . . . . . . . . . . . . . 7-18
Diagnostics, OnStar
®. . . . . . . . . . 14-5
Distracted Driving . . . . . . . . . . . . . . . 9-4
Dome Lamps . . . . . . . . . . . . . . . . . . . 6-5
Door Ajar Messages . . . . . . . . . . . . . . . 5-49
Delayed Locking . . . . . . . . . . . . . . 2-13
Locks . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
Power Locks . . . . . . . . . . . . . . . . . . 2-12
Drive Belt Routing, Engine . . . . . 12-3
Drive Mode Messages . . . . . . . . . 5-49
Drive Unit Electric . . . . . . . . . . . . . . . . . . . . . . . 9-31
Driver Efficiency Gauge . . . . . . . 5-15
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . 5-45
Driver Selected Operating Modes . . . . . . . . . . . . . . . . . . . . . . . 9-25
Driving Defensive . . . . . . . . . . . . . . . . . . . . . . 9-5
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5
Highway Hypnosis . . . . . . . . . . . . . 9-9
Hill and Mountain Roads . . . . . . . 9-9 Driving (cont'd)
If the Vehicle is Stuck . . . . . . . . . 9-12
Loss of Control . . . . . . . . . . . . . . . . 9-7
Off-Road Recovery . . . . . . . . . . . . 9-7
Vehicle Load Limits . . . . . . . . . . . 9-12
Wet Roads . . . . . . . . . . . . . . . . . . . . 9-8
Winter . . . . . . . . . . . . . . . . . . . . . . . . 9-10
Driving for Better Energy Efficiency . . . . . . . 1-28, 9-2
E
Electric Drive Unit . . . . . . . . . . . . . 9-31
Electric Drive Unit
Messages . . . . . . . . . . . . . . . . . . . . 5-49
Electric Drive Unit Shift Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . 10-27
Electric Mode . . . . . . . . . . . . . . . . . . 9-24
Electric Parking Brake . . . . . . . . . 9-34
Electric Parking Brake Light . . . 5-22
Electrical Equipment, Add-On . . . . . . . . . . . . . . . . . . . . . . 9-65
Electrical Requirements for Battery Charging . . . . . . . . . . . . . 9-58

Black plate (4,1)Chevrolet Volt Owner Manual - 2012
i-4 INDEX
Electrical SystemEngine Compartment
Fuse Block . . . . . . . . . . . . . . . . 10-34
Instrument Panel Fuse Block . . . . . . . . . 10-38, 10-40
Overload . . . . . . . . . . . . . . . . . . . 10-33
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . 10-42
Electronic Stability Control . . . . . 9-38
Emergency, OnStar
®. . . . . . . . . . 14-2
Energy Efficiency
Driving . . . . . . . . . . . . . . . . . . . 1-28, 9-2
Energy Information . . . . . . . . . . . . 5-43
Engine Air Cleaner/Filter . . . . . . . . . . . 10-13
Check and Service EngineSoon Light . . . . . . . . . . . . . . . . . . 5-19
Compartment Overview . . . . . . . 10-8
Coolant . . . . . . . . . . . . . . . . . . . . . 10-18
Coolant Temperature Warning Light . . . . . . . . . . . . . . . 5-25
Cooling System . . . . . . 10-15–10-17
Cooling System Messages . . . 5-49
Drive Belt Routing . . . . . . . . . . . . 12-3
Exhaust . . . . . . . . . . . . . . . . . . . . . . 9-30
Oil Life System . . . . . . . . . . . . . 10-12 Engine (cont'd)
Oil Messages . . . . . . . . . . . . . . . . . 5-50
Overheating . . . . . . . . . . . . . . . . 10-21
Pressure Light . . . . . . . . . . . . . . . . 5-26
Running While Parked . . . . . . . . 9-30
Engine Unavailable Out of Fuel . . . . . . . . . . . . . . . . . . . 9-27
Entry Lighting . . . . . . . . . . . . . . . . . . . 6-6
Event Data Recorders . . . . . . . . 13-16
Exit Lighting . . . . . . . . . . . . . . . . . . . . 6-6
Extended Range Mode . . . . . . . . 9-24
Extender, Safety Belt . . . . . . . . . . 3-17
Exterior Lamp Controls . . . . . . . . . 6-1
F
Filter, Engine Air Cleaner . . . . . . . . . 10-13
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 6-2
Flashers, Hazard Warning . . . . . . 6-3
Flat Tire . . . . . . . . . . . . . . . . . . . . . . 10-65
Floor Console Storage . . . . . . . . . . 4-1
Floor Mats . . . . . . . . . . . . . . . . . . . . 10-92
Fluid Brakes . . . . . . . . . . . . . . . . . . . . . . 10-23
Washer . . . . . . . . . . . . . . . . . . . . . 10-21
Folding Mirrors . . . . . . . . . . . . . . . . 2-17 Front Seats
Adjustment . . . . . . . . . . . . . . . . . . . . 3-4
Heated . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-59 Additives . . . . . . . . . . . . . . . . . . . . . 9-60
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 9-64
Filling the Tank . . . . . . . . . . . . . . . 9-62
Foreign Countries . . . . . . . . . . . . 9-60
Gasoline Specifications . . . . . . . 9-60
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 5-15
Low Fuel Warning Light . . . . . . . 5-27
Requirements, California . . . . . 9-60
System Messages . . . . . . . . . . . . 5-50
Function Check Electric Drive Unit Shift
Lock Control . . . . . . . . . . . . . . 10-27
Fuses Engine CompartmentFuse Block . . . . . . . . . . . . . . . . 10-34
Instrument Panel
Fuse Block . . . . . . . . . 10-38, 10-40
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . 10-42

Black plate (5,1)Chevrolet Volt Owner Manual - 2012
INDEX i-5
G
Garage Door Opener . . . . . . . . . . 5-65Programming . . . . . . . . . . . . . . . . . 5-65
Gasoline Specifications . . . . . . . . . . . . . . . . . 9-60
Gauges Battery . . . . . . . . . . . . . . . . . . . . . . . 5-14
Driver Efficiency . . . . . . . . . . . . . . 5-15
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15
Odometer . . . . . . . . . . . . . . . . . . . . . 5-14
Speedometer . . . . . . . . . . . . . . . . . 5-14
Trip Odometer . . . . . . . . . . . . . . . . 5-14
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . . 5-8
General Information Service and Maintenance . . . . . 11-1
Towing . . . . . . . . . . . . . . . . . . . . . . . . 9-64
Vehicle Care . . . . . . . . . . . . . . . . . . 10-2
Glove Box . . . . . . . . . . . . . . . . . . . . . . 4-1
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . 13-6
H
Halogen Bulbs . . . . . . . . . . . . . . . . 10-29
Hatch . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Hazard Warning Flashers . . . . . . . 6-3
Head Restraints . . . . . . . . . . . . . . . . 3-2
Headlamps . . . . . . . . . . . . . . . . . . . 10-29Aiming . . . . . . . . . . . . . . . . . . . . . . 10-28
Bulb Replacement . . . . . . . . . . 10-29
Daytime Running
Lamps (DRL) . . . . . . . . . . . . . . . . . 6-2
Flash-to-Pass . . . . . . . . . . . . . . . . . . 6-2
High-Beam On Light . . . . . . . . . . 5-27
High/Low Beam Changer . . . . . . 6-2
Lamps On Reminder . . . . . . . . . 5-28
Heated Front Seats . . . . . . . . . . . . . 3-6
Heated Mirrors . . . . . . . . . . . . . . . . . 2-17
Heating and Air Conditioning . . . 8-1
High Voltage Battery Gauge . . . 5-14
High Voltage Devices and Wiring . . . . . . . . . . . . . . . . . . . . . . . 10-32
High-Beam On Light . . . . . . . . . . . 5-27
Highway Hypnosis . . . . . . . . . . . . . . 9-9
Hill and Mountain Roads . . . . . . . . 9-9
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . 10-7 Hood, Door, Hatch Open
Light . . . . . . . . . . . . . . . . . . . . . . . . . 5-28
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
How to Wear Safety Belts Properly . . . . . . . . . . . . . . . . . . . . . . 3-12
I
Immobilizer . . . . . . . . . . . . . . . . . . . . 2-16
Infants and Young Children,Restraints . . . . . . . . . . . . . . . . . . . . 3-36
Information Energy . . . . . . . . . . . . . . . . . . . . . . . 5-43
Infotainment . . . . . . . . . . . . . . . . . . . . 7-1
Instrument Cluster . . . . . . . . . . . . . . 5-9
Instrument Panel
Storage Area . . . . . . . . . . . . . . . . . . 4-1
Introduction . . . . . . . . . . . . . . . . . . . . . . . iii
J
Jump Starting . . . . . . . . . . . . . . . . . 10-75