
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 (16,1)Chevrolet Volt Owner Manual - 2011
9-16 Driving and Operating
Example 1
A.
Vehicle Capacity Weight
for Example 1 = 453 kg
(1,000 lbs).
B.Subtract Occupant Weight
@ 68 kg (150 lbs) × 2 =
136 kg (300 lbs).
C.Available Occupant and
Cargo Weight = 317 kg
(700 lbs).
Example 2
A.
Vehicle Capacity Weight
for Example 2 = 453 kg
(1,000 lbs).
B.Subtract Occupant Weight
@ 68 kg (150 lbs) × 5 =
340 kg (750 lbs).
C.Available Cargo
Weight = 113 kg (250 lbs).
Example 3
A.
Vehicle Capacity Weight
for Example 3 = 453 kg
(1,000 lbs).
B.Subtract Occupant Weight
@ 91 kg (200 lbs) × 5 =
453 kg (1,000 lbs).
C.Available Cargo
Weight = 0 kg (0 lbs).

Black plate (17,1)Chevrolet Volt Owner Manual - 2011
Driving and Operating 9-17
Refer to the vehicle's Tire and
Loading Information label for
specific information about the
vehicle's capacity weight and
seating positions. The combined
weight of the driver, passengers,
and cargo should never exceed
the vehicle's capacity weight.Certification Label
Label Example
A vehicle-specific Certification
label is found on the center
pillar (B-pillar). The label shows
the gross weight capacity of
the vehicle. This is the Gross
Vehicle Weight Rating (GVWR)
and includes the weight of the
vehicle, all occupants, fuel, and
cargo. Never exceed the GVWRfor the vehicle, or the Gross
Axle Weight Rating (GAWR)
for either the front or rear axle.
Spread out heavy loads equally
on both sides of the vehicle.
See
“Steps for Determining
Correct Load Limit” earlier
in this section.
{WARNING
Do not load the vehicle
any heavier than the
Gross Vehicle Weight
Rating (GVWR), or either the
maximum front or rear Gross
Axle Weight Rating (GAWR).
This can cause systems to
break and change the way the
vehicle handles. This could
cause loss of control and a
crash. Overloading can also
shorten the life of the vehicle.

Black plate (18,1)Chevrolet Volt Owner Manual - 2011
9-18 Driving and Operating
If you put things inside the
vehicle—like suitcases,
tools, packages, or anything
else —they will go as fast as
the vehicle goes. If you have to
stop or turn quickly, or if there is
a crash, they will keep going.
{WARNING
Things inside the vehicle can
strike and injure people in a
sudden stop or turn, or in a
crash.
.Put things in the cargo
area of the vehicle. In the
cargo area, put them as
far forward as possible.
Try to spread the weight
evenly.
(Continued)
WARNING (Continued)
.Never stack heavier
things, like suitcases,
inside the vehicle so that
some of them are above
the tops of the seats.
.Do not leave an
unsecured child restraint
in the vehicle.
.Secure loose items in the
vehicle.
.Do not leave a seat folded
down unless needed.
Starting and
Operating
New Vehicle Break-In
Notice: The vehicle does not
require a break-in period. Vehicle
break‐in is performed during
manufacturing.
Power Button
The vehicle has an electronic
push‐button start. The POWER
O
button light flashes when the driver
door is open and the vehicle is not

Black plate (23,1)Chevrolet Volt Owner Manual - 2011
Driving and Operating 9-23
Leaving the Vehicle with the
Propulsion System On
{WARNING
It can be dangerous to leave
the vehicle with the propulsion
system on. The vehicle could
move suddenly if the shift lever
is not fully in P (Park) with the
parking brake firmly set. And,
if you leave the vehicle with the
propulsion system on, it could
overheat and even catch fire.
You or others could be injured.
Do not leave the vehicle with
the propulsion system on.
If you have to leave the vehicle with
the propulsion system on, be sure
the vehicle is in P (Park) and the
parking brake is firmly set before
you leave it. After you have moved the shift lever into P (Park), hold
down the regular brake pedal.
See if you can move the shift lever
away from P (Park) without first
pulling it toward you. If you can,
it means that the shift lever was
not fully locked into P (Park).
Torque Lock
Torque lock is when the weight of
the vehicle puts too much force on
the parking pawl in the electric drive
unit. This happens when parking
on a hill and shifting the electric
drive unit into P (Park) is not done
properly and then it is difficult to
shift out of P (Park). To prevent
torque lock, set the parking brake
and then shift into P (Park).
If torque lock does occur, your
vehicle may need to be pushed
uphill by another vehicle to relieve
the parking pawl pressure, so you
can shift out of P (Park).
Shifting out of Park
To shift out of P (Park), the vehicle
must be in ON/RUN, the brake
pedal must be applied, and the
charge cord must be unplugged.
The vehicle has an electronic shift
lock release system. The shift lock
release is designed to:
.Prevent the vehicle from turning
off unless the shift lever is in
P (Park).
.Prevent moving the shift lever
out of P (Park), unless the
vehicle is in ON/RUN, the brake
pedal is applied, and the charge
cord is unplugged.
The shift lock is always functional
except in the case of an uncharged
or low charged 12‐volt battery
(less than 9 volts).
If the vehicle has an uncharged
12‐volt battery or a 12‐volt battery
with low voltage, try charging or
jump starting the 12‐volt battery.
See Jump Starting on page 10‑79.

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 (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.