2012 CHEVROLET VOLT tire size

Black plate (54,1)Chevrolet Volt Owner Manual - 2012
10-54 Vehicle Care
A Tire and Loading Information label
shows the size of the original
equipment tires and the correct
inflation pressure for the tires when
they are cold. SeeVehicle Load
Limits on page 9‑12, for an example
of the Tire and Loading Information
label and its location. Also see Tire
Pressure on page 10‑50.
The TPMS can warn about a low
tire pressure condition but it
does not replace normal tire
maintenance. See Tire Inspection
on page 10‑57, Tire Rotation on
page 10‑57, and Tires on
page 10‑44. Notice:
Tire sealant materials are
not all the same. A non-approved
tire sealant could damage the
TPMS sensors. TPMS sensor
damage caused by using an
incorrect tire sealant is not
covered by the vehicle warranty.
Always use only the
GM-approved tire sealant
available through your dealer or
included in the vehicle.
Factory-installed Tire Inflator Kits
use a GM-approved liquid tire
sealant. Using non-approved tire
sealants could damage the TPMS
sensors. See Tire Sealant and
Compressor Kit on page 10‑67 for
information regarding the inflator kit
materials and instructions.TPMS Malfunction Light and
Message
The TPMS will not function properly
if one or more of the TPMS sensors
are missing or inoperable. When the
system detects a malfunction, the
low tire pressure warning light
flashes for about one minute and
then stays on for the remainder of
the vehicle on/off cycle. A DIC
warning message also displays. The
malfunction light and DIC warning
message come on at each vehicle
on/off cycle until the problem is
corrected. Some of the conditions
that can cause these to come
on are:
.One of the road tires has been
replaced with the spare tire,
if the vehicle has one. The spare
tire does not have a TPMS
sensor. The malfunction light
and DIC message should go off
after the road tire is replaced
and the sensor matching
process is performed

Black plate (57,1)Chevrolet Volt Owner Manual - 2012
Vehicle Care 10-57
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 11‑3.
Tires are rotated to achieve a
more uniform wear for all tires.
Any time unusual wear is
noticed, rotate the tires as soon
as possible, and check the
wheel alignment. Also check for
damaged tires or wheels. See
When It Is Time for New Tires
on page 10‑58 andWheel
Replacement on page 10‑63.
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 10‑50
and Vehicle Load Limits on
page 9‑12.
Reset the Tire Pressure Monitor
System. See Tire Pressure
Monitor Operation on
page 10‑53.

Black plate (59,1)Chevrolet Volt Owner Manual - 2012
Vehicle Care 10-59
The rubber in tires ages over time.
This also applies for the spare tire,
if the vehicle has one, even if it is
never used. Multiple conditions
including temperatures, loading
conditions, and inflation pressure
maintenance affect how fast aging
takes place. Tires will typically need
to be replaced due to wear before
they may need to be replaced
due to age. Consult the tire
manufacturer for more information
on when tires should be replaced.
Vehicle Storage
Tires age when stored normally
mounted on a parked vehicle. Park
a vehicle that will be stored for at
least a month in a cool, dry, clean
area away from direct sunlight to
slow aging. This area should be free
of grease, gasoline, or other
substances that can deteriorate
rubber.Parking for an extended period can
cause flat spots on the tires that
may result in vibrations while
driving. When storing a vehicle for
at least a month, remove the tires or
raise the vehicle to reduce the
weight from the tires.
Buying New Tires
GM has developed and matched
specific tires for the vehicle. The
original equipment tires installed on
the vehicle, when it was new, were
designed to meet General Motors
Tire Performance Criteria
Specification (TPC Spec) system
rating. When replacement tires are
needed, GM strongly recommends
buying tires with the same TPC
Spec rating. This way, the vehicle
will continue to have tires that are
designed to give the same
performance and vehicle safety,
during normal use, as the original
tires.GM's exclusive TPC Spec system
considers over a dozen critical
specifications that impact the
overall performance of the vehicle,
including brake system
performance, ride and handling,
traction control, and tire pressure
monitoring performance. GM's TPC
Spec number is molded onto the
tire's sidewall near the tire size.
If the tires have an all‐season tread
design, the TPC spec number will
be followed by MS, for mud and
snow. See
Tire Sidewall Labeling on
page 10‑45 for additional
information.

Black plate (60,1)Chevrolet Volt Owner Manual - 2012
10-60 Vehicle Care
GM recommends replacing all the
tires at the same time. Uniform tread
depth on all tires will help to
maintain the performance of the
vehicle. Braking and handling
performance may be adversely
affected if all the tires are not
replaced at the same time. SeeTire
Inspection on page 10‑57 andTire
Rotation on page 10‑57 for
information on proper tire rotation.
{WARNING
Tires could explode during
improper service. Attempting
to mount or dismount a tire
could cause injury or death.
Only your dealer or authorized
tire service center should
mount or dismount the tires.
{WARNING
Mixing tires of different sizes,
brands, or types may cause
loss of control of the vehicle,
resulting in a crash or other
vehicle damage. Use the
correct size, brand, and type
of tire on all wheels.
{WARNING
Using bias-ply tires on the
vehicle may cause the wheel
rim flanges to develop cracks
after many miles of driving.
A tire and/or wheel could fail
suddenly and cause a crash.
Use only radial-ply tires with
the wheels on the vehicle.
If the vehicle tires must be replaced
with a tire that does not have a TPC
Spec number, make sure they are
the same size, load range, speed
rating, and construction (radial) as
the original tires.
Vehicles that have a tire pressure
monitoring system could give an
inaccurate low‐pressure warning if
non‐TPC Spec rated tires are
installed. See Tire Pressure Monitor
System on page 10‑51.
The Tire and Loading Information
Label indicates the original
equipment tires on the vehicle. See
Vehicle Load Limits on page 9‑12,
for the label location and more
information about the Tire and
Loading Information label.

Black plate (61,1)Chevrolet Volt Owner Manual - 2012
Vehicle Care 10-61
Different Size Tires and
Wheels
If wheels or tires are installed that
are a different size than the original
equipment wheels and tires, vehicle
performance, including its braking,
ride and handling characteristics,
stability, and resistance to rollover
may be affected. If the vehicle has
electronic systems such as antilock
brakes, rollover airbags, traction
control, and electronic stability
control, the performance of these
systems can also be affected.
{WARNING
If different sized wheels are used,
there may not be an acceptable
level of performance and safety if
tires not recommended for those
wheels are selected. This
increases the chance of a crash
and serious injury. Only use GM
specific wheel and tire systems
developed for the vehicle, and
have them properly installed by a
GM certified technician.
See Buying New Tires on
page 10‑59 andAccessories and
Modifications on page 10‑3 for
additional information.
Uniform Tire Quality
Grading
Quality grades can be found
where applicable on the tire
sidewall between tread shoulder
and maximum section width. For
example:
Treadwear 200 Traction AA
Temperature A
The following information relates
to the system developed by the
United States National Highway
Traffic Safety Administration
(NHTSA), which grades tires by
treadwear, traction, and
temperature performance. This
applies only to vehicles sold in
the United States. The grades
are molded on the sidewalls of
most passenger car tires. The
Uniform Tire Quality Grading
(UTQG) system does not apply
to deep tread, winter-type snow
tires, space-saver, or temporary

Black plate (65,1)Chevrolet Volt Owner Manual - 2012
Vehicle Care 10-65
Tire Chains
{WARNING
Do not use tire chains. There is
not enough clearance. Tire chains
used on a vehicle without the
proper amount of clearance can
cause damage to the brakes,
suspension, or other vehicle
parts. The area damaged by the
tire chains could cause loss of
control and a crash.(Continued)
WARNING (Continued)
Use another type of traction
device only if its manufacturer
recommends it for the vehicle's
tire size combination and road
conditions. Follow that
manufacturer's instructions. To
avoid vehicle damage, drive slow
and readjust or remove the
traction device if it contacts the
vehicle. Do not spin the wheels.
If traction devices are used, install
them on the front tires.
If a Tire Goes Flat
This vehicle has a tire sealant and
compressor kit. SeeTire Sealant
and Compressor Kit on page 10‑67.
There is no spare tire, no tire
changing equipment, and no place
to store a tire.
To properly lift this vehicle, see
Lifting the Vehicle on page 10‑3.
It is unusual for a tire to blowout
while driving, especially if the tires
are maintained properly. See Tires
on page 10‑44. If air goes out of a
tire, it is much more likely to leak
out slowly. But if there ever is a
blowout, here are a few tips about
what to expect and what to do:
If a front tire fails, the flat tire will
create a drag that pulls the vehicle
toward that side. Take your foot off
the accelerator pedal and grip the
steering wheel firmly. Steer to
maintain lane position, and then
gently brake to a stop, well off the
road, if possible.

Black plate (11,1)Chevrolet Volt Owner Manual - 2012
INDEX i-11
T
Text Telephone (TTY) Users . . . 13-4
Theft-Deterrent Systems . . . . . . . 2-16Immobilizer . . . . . . . . . . . . . . . . . . . 2-16
Tires Buying New Tires . . . . . . . . . . . 10-59
Chains . . . . . . . . . . . . . . . . . . . . . . 10-65
Designations . . . . . . . . . . . . . . . 10-46
Different Size . . . . . . . . . . . . . . . 10-61
If a Tire Goes Flat . . . . . . . . . . 10-65
Inflation Monitor System . . . . 10-53
Inspection . . . . . . . . . . . . . . . . . . 10-57
Lifting the Vehicle . . . . . . . . . . . . . 10-3
Messages . . . . . . . . . . . . . . . . . . . . 5-55
Pressure Light . . . . . . . . . . . . . . . . 5-25
Pressure Monitor System . . . 10-51
Rotation . . . . . . . . . . . . . . . . . . . . 10-57
Sealant andCompressor Kit . . . . . . . . . . . 10-67
Sealant and Compressor
Kit, Storing . . . . . . . . . . . . . . . . 10-74
Sidewall Labeling . . . . . . . . . . . 10-45
Terminology and Definitions . . . . . . . . . . . . . . . . . 10-47
Uniform Tire Quality
Grading . . . . . . . . . . . . . . . . . . . 10-61 Tires (cont'd)
Wheel Alignment and Tire
Balance . . . . . . . . . . . . . . . . . . . 10-63
Wheel Replacement . . . . . . . . 10-63
When It Is Time for New
Tires . . . . . . . . . . . . . . . . . . . . . . 10-58
Winter . . . . . . . . . . . . . . . . . . . . . . 10-45
Total Vehicle Range . . . . . . . . . . . 5-15
Towing General Information . . . . . . . . . . 9-64
Recreational Vehicle . . . . . . . . 10-83
Vehicle . . . . . . . . . . . . . . . . . . . . . 10-81
Traction Control System (TCS) . . . . . . . . 9-36
Control System (TCS)/
StabiliTrak
®Light . . . . . . . . . . . . 5-25
Off Light . . . . . . . . . . . . . . . . . . . . . . 5-24
Transportation Program,
Courtesy . . . . . . . . . . . . . . . . . . . . . 13-9
Trip Odometer . . . . . . . . . . . . . . . . . 5-14
Turn and Lane-Change Signals . . . . . . . . . . . . . . . . . . . . . . . . 6-4
U
Ultrasonic Parking Assist . . . . . . 9-42
Umbrella Storage . . . . . . . . . . . . . . . 4-2
Uniform Tire QualityGrading . . . . . . . . . . . . . . . . . . . . . 10-61
Universal Remote System . . . . . 5-65 Operation . . . . . . . . . . . . . . . . . . . . . 5-68
Programming . . . . . . . . . . . . . . . . . 5-65
Using This Manual . . . . . . . . . . . . . . . . iv
Utility Interruption of Charging . . . . . . . . . . . . . . . . . . . . . 9-58
V
Vehicle
Canadian Owners . . . . . . . . . . . . . . . iii
Control . . . . . . . . . . . . . . . . . . . . . . . . 9-5
IdentificationNumber (VIN) . . . . . . . . . . . . . . . 12-1
Load Limits . . . . . . . . . . . . . . . . . . . 9-12
Messages . . . . . . . . . . . . . . . . . . . . 5-47
Personalization . . . . . . . . . . . . . . . 5-56
Reminder Messages . . . . . . . . . . 5-55
Security . . . . . . . . . . . . . . . . . . . . . . 2-15
Speed Messages . . . . . . . . . . . . . 5-55

Black plate (12,1)Chevrolet Volt Owner Manual - 2012
i-12 INDEX
Vehicle (cont'd)Starting and Stopping . . . . . . . . . 9-20
Total Range . . . . . . . . . . . . . . . . . . 5-15
Towing . . . . . . . . . . . . . . . . . . . . . . 10-81
Vehicle Care Storing the Tire Sealantand Compressor Kit . . . . . . . 10-74
Tire Pressure . . . . . . . . . . . . . . . 10-50
Vehicle Ready Light . . . . . . . . . . . 5-27
Ventilation, Air . . . . . . . . . . . . . . . . . . 8-8
Visors . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
Voltage Devices and
Wiring . . . . . . . . . . . . . . . . . . . . . . . 10-32
W
WarningBrake System Light . . . . . . . . . . . 5-22
Warning Lights, Gauges, and Indicators . . . . . . . . . . . . . . . . . . . . . 5-8
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . iv
Cautions and Danger . . . . . . . . . . . .iv
Hazard Flashers . . . . . . . . . . . . . . . 6-3
Washer Fluid . . . . . . . . . . . . . . . . . 10-21 Messages . . . . . . . . . . . . . . . . . . . . 5-55 Wheels
Alignment and Tire
Balance . . . . . . . . . . . . . . . . . . . 10-63
Different Size . . . . . . . . . . . . . . . 10-61
Replacement . . . . . . . . . . . . . . . 10-63
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . . . 10-58
Where to Put the Restraint . . . . 3-41
Windows . . . . . . . . . . . . . . . . . . . . . . 2-18 Power . . . . . . . . . . . . . . . . . . . . . . . . 2-19
Windshield
Wiper/Washer . . . . . . . . . . . . . . . . . 5-6
Winter Driving . . . . . . . . . . . . . . . . . . . . . . . . 9-10
Winter Tires . . . . . . . . . . . . . . . . . . 10-45
Wiper Blade Replacement . . . . 10-28
Wiring, High Voltage Devices . . . . . . . . . . . . . . . . . . . . . 10-32