tire pressure CHEVROLET VOLT 2011 User Guide

Black plate (52,1)Chevrolet Volt Owner Manual - 2011
5-52 Instruments and Controls
SERVICE POWER STEERING
This message displays if there is a
problem with the power steering
system. Take the vehicle to your
dealer for service.
SERVICE VEHICLE SOON
This message displays if there is a
problem with the vehicle. Take the
vehicle to your dealer for service.
Depending on the severity of a
crash, this message may come
on along with the airbag readiness
light.
Starting the Vehicle
Messages
PRESS BRAKE TO START
VEHICLE
This message displays when
attempting to start the vehicle
without first pressing the brake
pedal.
PRESS BUTTON AGAIN TO
TURN OFF
This message displays as a
reminder to press the POWER
O
button to turn the vehicle off when
an attempt is made to turn off the
vehicle while it is in motion.
Tire Messages
SERVICE TIRE MONITOR
SYSTEM
This message displays if there is
a problem with the Tire Pressure
Monitor System (TPMS). SeeTire
Pressure Monitor Operation on
page 10‑57 for more information.
TIRE LEARNING ACTIVE
This message displays when
the system is learning new tires.
SeeTire Pressure Monitor
Operation on page 10‑57 for
more information.
TIRE LOW ADD AIR TO TIRE
This message displays when the
pressure in one or more of the tires
is low.
This message also displays
LEFT FRONT, RIGHT FRONT,
LEFT REAR, or RIGHT REAR to
indicate the location of the low tire.
The low tire pressure warning
light will also come on. See Tire
Pressure Light on page 5‑27.
If a tire pressure message appears
on the DIC, stop as soon as you
can. Inflate the tires by adding air
until the tire pressure is equal to
the values shown on the Tire and
Loading Information label. See Tires
on page 10‑48, Vehicle Load Limits
on page 9‑14, and Tire Pressure on
page 10‑54.
You can receive more than one
tire pressure message at a time.
The DIC also shows the tire
pressure values. See Driver
Information Center (DIC) on
page 5‑43.

Black plate (75,1)Chevrolet Volt Owner Manual - 2011
Infotainment System 7-75
When the vehicle is not receiving
signals from the satellites, a symbol
appears on the map screen. See
Navigation Symbols on page 7‑47.
This system might not be available
or interferences can occur if any of
the following is true:
.Signals are obstructed by tall
buildings, trees, large trucks,
or a tunnel.
.Satellites are being repaired or
improved.
For more information if the GPS
is not functioning properly, see
“If the System Needs Service” and
“Problems with Route Guidance.”
Vehicle Positioning
At times, the position of the vehicle
on the map could be inaccurate
due to one or more of the following
reasons:
.The road system has changed.
.The vehicle is driving on slippery
road surfaces such as in sand,
gravel, and/or snow.
.The vehicle is traveling on
winding roads or long straight
roads.
.Approaching a tall building or a
large vehicle.
.The surface streets run parallel
to a freeway.
.The vehicle has been transferred
by a vehicle carrier or a ferry.
.The current position calibration
is set incorrectly.
.The vehicle is traveling at high
speed.
.The vehicle changes directions
more than once, or the vehicle
is turning on a turn table in a
parking lot.
.The vehicle is entering and/or
exiting a parking lot, garage,
or a lot with a roof.
.The GPS signal is not received.
.A roof carrier is installed on the
vehicle.
.Tire chains have been installed.
.The tires are replaced or worn.
.The tire pressure for the tires is
incorrect.
.This is the first navigation use
after the map data is updated.
.The 12-volt battery is
disconnected for several days.
.The vehicle is driving in heavy
traffic where driving is at low
speeds, and the vehicle is
stopped and started repeatedly.

Black plate (15,1)Chevrolet Volt Owner Manual - 2011
Driving and Operating 9-15
The Tire and Loading
Information label shows the
number of occupant seating
positions (A), and the maximum
vehicle capacity weight (B) in
kilograms and pounds.
The Tire and Loading
Information label also shows
the tire size of the original
equipment tires (C) and the
recommended cold tire inflation
pressures (D). For more
information on tires and inflation
seeTires on page 10‑48 and
Tire Pressure on page 10‑54.
There is also important loading
information on the Certification
label. It tells you the Gross
Vehicle Weight Rating (GVWR)
and the Gross Axle Weight
Rating (GAWR) for the front
and rear axle; see “Certification
Label” later in this section. Steps for Determining Correct
Load Limit
1.Locate the statement
“The combined weight of
occupants and cargo should
never exceed XXX kg or
XXX lbs”
on your vehicle's
placard.
2.Determine the combined
weight of the driver and
passengers that will be
riding in your vehicle.
3.Subtract the combined
weight of the driver and
passengers from XXX kg
or XXX lbs.
4.The resulting figure equals
the available amount of cargo
and luggage load capacity.
For example, if the “XXX”
amount equals 1400 lbs
and there will be five 150 lb passengers in your vehicle,
the amount of available cargo
and luggage load capacity
is 650 lbs (1400
−750
(5 x 150) = 650 lbs).
5.Determine the combined
weight of luggage and cargo
being loaded on the vehicle.
That weight may not safely
exceed the available cargo
and luggage load capacity
calculated in Step 4.
6.If your vehicle will be towing
a trailer, the load from your
trailer will be transferred to
your vehicle. Consult this
manual to determine how this
reduces the available cargo
and luggage load capacity
of your vehicle.
The vehicle is neither designed
nor intended to tow a trailer.

Black plate (2,1)Chevrolet Volt Owner Manual - 2011
10-2 Vehicle Care
Wheels and Tires
Tires . . . . . . . . . . . . . . . . . . . . . . . . 10-48
Winter Tires . . . . . . . . . . . . . . . . 10-49
Tire Sidewall Labeling . . . . . . 10-49
Tire Designations . . . . . . . . . . . 10-50
Tire Terminology andDefinitions . . . . . . . . . . . . . . . . 10-51
Tire Pressure . . . . . . . . . . . . . . . 10-54
Tire Pressure Monitor System . . . . . . . . . . . . . . . . . . . 10-55
Tire Pressure Monitor Operation . . . . . . . . . . . . . . . . . 10-57
Tire Inspection . . . . . . . . . . . . . . 10-61
Tire Rotation . . . . . . . . . . . . . . . 10-61
When It Is Time for New Tires . . . . . . . . . . . . . . . . . . . . . . 10-62 Buying New Tires . . . . . . . . . . . 10-63
Different Size Tires and
Wheels . . . . . . . . . . . . . . . . . . . 10-65
Uniform Tire Quality Grading . . . . . . . . . . . . . . . . . . . 10-65
Wheel Alignment and Tire Balance . . . . . . . . . . . . . . . . . . . 10-67
Wheel Replacement . . . . . . . . 10-67
Tire Chains . . . . . . . . . . . . . . . . . 10-69
If a Tire Goes Flat . . . . . . . . . . 10-69
Tire Sealant and Compressor Kit . . . . . . . . . . . 10-71
Storing the Tire Sealant and Compressor Kit . . . . . . . . . . . 10-78
Jump Starting
Jump Starting . . . . . . . . . . . . . . 10-79
Towing
Towing the Vehicle . . . . . . . . . 10-84
Recreational VehicleTowing . . . . . . . . . . . . . . . . . . . . 10-87
Appearance Care
Exterior Care . . . . . . . . . . . . . . . 10-89
Interior Care . . . . . . . . . . . . . . . . 10-93
Floor Mats . . . . . . . . . . . . . . . . . . 10-96

Black plate (48,1)Chevrolet Volt Owner Manual - 2011
10-48 Vehicle Care
Wheels and Tires
Tires
Every new GM vehicle has
high-quality tires made by
a leading tire manufacturer.
See the warranty manual
for information regarding
the tire warranty and where
to get service. For additional
information refer to the tire
manufacturer.
{WARNING
.Poorly maintained and
improperly used tires are
dangerous.(Continued)
WARNING (Continued)
.Overloading the tires can
cause overheating as a
result of too much flexing.
There could be a blowout and
a serious crash. See Vehicle
Load Limits on page 9‑14.
.Underinflated tires pose the
same danger as overloaded
tires. The resulting crash
could cause serious injury.
Check all tires frequently to
maintain the recommended
pressure. Tire pressure
should be checked when
the tires are cold.
.Overinflated tires are more
likely to be cut, punctured,
or broken by a sudden
impact —such as when
hitting a pothole. Keep
tires at the recommended
pressure.
(Continued)
WARNING (Continued)
.Worn or old tires can cause
a crash. If the tread is badly
worn, replace them.
.Replace any tires that have
been damaged by impacts
with potholes, curbs, etc.
.Improperly repaired tires
can cause a crash. Only the
dealer or an authorized tire
service center should repair,
replace, dismount, and mount
the tires.
.Do not spin the tires in
excess of 55 km/h (35 mph)
on slippery surfaces such
as snow, mud, ice, etc.
Excessive spinning may
cause the tires to explode.

Black plate (50,1)Chevrolet Volt Owner Manual - 2011
10-50 Vehicle Care
(B) TPC Spec (Tire
Performance Criteria
Specification)
:Original
equipment tires designed to
GM's specific tire performance
criteria have a TPC specification
code molded onto the sidewall.
GM's TPC specifications meet
or exceed all federal safety
guidelines.
(C) DOT (Department
of Transportation)
:
The Department of
Transportation (DOT) code
indicates that the tire is in
compliance with the U.S.
Department of Transportation
Motor Vehicle Safety Standards.
(D) Tire Identification Number
(TIN)
:The letters and numbers
following the DOT code are
the Tire Identification Number
(TIN). The TIN shows the manufacturer and plant code,
tire size, and date the tire
was manufactured. The TIN is
molded onto both sides of the
tire, although only one side may
have the date of manufacture.
(E) Tire Ply Material
:The type
of cord and number of plies in
the sidewall and under the tread.
(F) Uniform Tire Quality
Grading (UTQG)
:Tire
manufacturers are required
to grade tires based on three
performance factors: treadwear,
traction, and temperature
resistance. For more information
see Uniform Tire Quality
Grading on page 10‑65.
(G) Maximum Cold Inflation
Load Limit
:Maximum load
that can be carried and the
maximum pressure needed
to support that load.
Tire Designations
Tire Size
The following is an example
of a typical passenger vehicle
tire size.
(A) Passenger (P‐Metric) Tire:
The United States version of
a metric tire sizing system.
The letter P as the first
character in the tire size
means a passenger vehicle
tire engineered to standards
set by the U.S. Tire and Rim
Association.

Black plate (51,1)Chevrolet Volt Owner Manual - 2011
Vehicle Care 10-51
(B) Tire Width:The three‐digit
number indicates the tire section
width in millimeters from
sidewall to sidewall.
(C) Aspect Ratio
:A two‐digit
number that indicates the tire
height‐to‐width measurements.
For example, if the tire size
aspect ratio is 60, as shown in
item C of the illustration, it would
mean that the tire's sidewall is
60 percent as high as it is wide.
(D) Construction Code
:A
letter code is used to indicate
the type of ply construction in
the tire. The letter R means
radial ply construction; the
letter D means diagonal or
bias ply construction; and the
letter B means belted‐bias ply
construction.
(E) Rim Diameter
:Diameter of
the wheel in inches. (F) Service Description
:These
characters represent the load
index and speed rating of the
tire. The load index represents
the load carrying capacity a tire
is certified to carry. The speed
rating is the maximum speed a
tire is certified to carry a load.
Tire Terminology and
Definitions
Air Pressure:The amount
of air inside the tire pressing
outward on each square
inch of the tire. Air pressure is
expressed in kPa (kilopascal)
or psi (pounds per square inch).
Accessory Weight
:The
combined weight of optional
accessories. Some examples
of optional accessories are,
automatic electric drive unit,
power steering, power brakes,
power windows, power seats,
and air conditioning. Aspect Ratio
:The relationship
of a tire's height to its width.
Belt
:A rubber coated layer of
cords that is located between
the plies and the tread. Cords
may be made from steel or other
reinforcing materials.
Bead
:The tire bead contains
steel wires wrapped by steel
cords that hold the tire onto
the rim.
Bias Ply Tire
:A pneumatic
tire in which the plies are laid
at alternate angles less than
90 degrees to the centerline
of the tread.
Cold Tire Pressure
:The
amount of air pressure in a tire,
measured in kPa (kilopascal)
or psi (pounds per square inch)
before a tire has built up heat
from driving. See Tire Pressure
on page 10‑54.

Black plate (52,1)Chevrolet Volt Owner Manual - 2011
10-52 Vehicle Care
Curb Weight:The weight of a
motor vehicle with standard and
optional equipment including the
maximum capacity of fuel, oil,
and coolant, but without
passengers and cargo.
DOT Markings
:A code
molded into the sidewall of
a tire signifying that the tire
is in compliance with the U.S.
Department of Transportation
(DOT) Motor Vehicle Safety
Standards. The DOT code
includes the Tire Identification
Number (TIN), an alphanumeric
designator which can also
identify the tire manufacturer,
production plant, brand, and
date of production.
GVWR
:Gross Vehicle Weight
Rating. See Vehicle Load Limits
on page 9‑14. GAWR FRT
:Gross Axle
Weight Rating for the front axle.
See Vehicle Load Limits on
page 9‑14.
GAWR RR
:Gross Axle
Weight Rating for the rear axle.
See Vehicle Load Limits on
page 9‑14.
Intended Outboard Sidewall
:
The side of an asymmetrical tire,
that must always face outward
when mounted on a vehicle.
Kilopascal (kPa)
:The metric
unit for air pressure.
Light Truck (LT‐Metric) Tire
:A
tire used on light duty trucks and
some multipurpose passenger
vehicles.
Load Index
:An assigned
number ranging from 1 to 279
that corresponds to the load
carrying capacity of a tire. Maximum Inflation Pressure
:
The maximum air pressure to
which a cold tire can be inflated.
The maximum air pressure is
molded onto the sidewall.
Maximum Load Rating
:
The load rating for a tire at the
maximum permissible inflation
pressure for that tire.
Maximum Loaded Vehicle
Weight
:The sum of curb
weight, accessory weight,
vehicle capacity weight, and
production options weight.
Normal Occupant Weight
:
The number of occupants a
vehicle is designed to seat
multiplied by 68 kg (150 lbs).
See Vehicle Load Limits on
page 9‑14.
Occupant Distribution
:
Designated seating positions.

Black plate (53,1)Chevrolet Volt Owner Manual - 2011
Vehicle Care 10-53
Outward Facing Sidewall:
The side of an asymmetrical tire
that has a particular side that
faces outward when mounted
on a vehicle. The side of the
tire that contains a whitewall,
bears white lettering, or bears
manufacturer, brand, and/or
model name molding that is
higher or deeper than the same
moldings on the other sidewall
of the tire.
Passenger (P-Metric) Tire
:
A tire used on passenger cars
and some light duty trucks and
multipurpose vehicles.
Recommended Inflation
Pressure
:Vehicle
manufacturer's recommended
tire inflation pressure as
shown on the tire placard.
See Tire Pressure on
page 10‑54 andVehicle
Load Limits on page 9‑14. Radial Ply Tire
:A pneumatic
tire in which the ply cords that
extend to the beads are laid at
90 degrees to the centerline of
the tread.
Rim
:A metal support for a tire
and upon which the tire beads
are seated.
Sidewall
:The portion of a tire
between the tread and the bead.
Speed Rating
:An
alphanumeric code assigned to
a tire indicating the maximum
speed at which a tire can
operate.
Traction
:The friction between
the tire and the road surface.
The amount of grip provided.
Tread
:The portion of a tire
that comes into contact with
the road. Treadwear Indicators
:Narrow
bands, sometimes called wear
bars, that show across the
tread of a tire when only 1.6 mm
(1/16 in) of tread remains.
See When It Is Time for New
Tires on page 10‑62.
UTQGS (Uniform Tire
Quality Grading Standards)
:
A tire information system
that provides consumers with
ratings for a tire's traction,
temperature, and treadwear.
Ratings are determined
by tire manufacturers using
government testing procedures.
The ratings are molded into
the sidewall of the tire.
See Uniform Tire Quality
Grading on page 10‑65.

Black plate (54,1)Chevrolet Volt Owner Manual - 2011
10-54 Vehicle Care
Vehicle Capacity Weight:
The number of designated
seating positions multiplied by
68 kg (150 lbs) plus the rated
cargo load. SeeVehicle Load
Limits on page 9‑14.
Vehicle Maximum Load on the
Tire
:Load on an individual tire
due to curb weight, accessory
weight, occupant weight, and
cargo weight.
Vehicle Placard
:A label
permanently attached to a
vehicle showing the vehicle's
capacity weight and the
original equipment tire size
and recommended inflation
pressure. See “Tire and Loading
Information Label” underVehicle
Load Limits on page 9‑14.
Tire Pressure
Tires need the correct amount
of air pressure to operate
effectively.
Notice: Neither tire
underinflation nor
overinflation is good.
Underinflated tires, or
tires that do not have
enough air, can result in:
.Tire overloading and
overheating which could
lead to a blowout.
.Premature or
irregular wear.
.Poor handling.
.Reduced fuel economy. Overinflated tires, or tires
that have too much air, can
result in:
.Unusual wear.
.Poor handling.
.Rough ride.
.Needless damage from
road hazards.
The Tire and Loading
Information label on the
vehicle indicates the original
equipment tires and the correct
cold tire inflation pressures.
The recommended pressure
is the minimum air pressure
needed to support the vehicle's
maximum load carrying capacity.