2009 PONTIAC G5 wheel size

When It Is Time for New Tires.......................5-64
Buying New Tires.........................................5-65
Different Size Tires and Wheels......................5-67
Uniform Tire Quality Grading..........................5-67
Wheel Alignment and Tire Balance..................5-68
Wheel Replacement......................................5-69
Tire Chains..................................................5-70
If a Tire Goes Flat........................................5-71
Tire Sealant and Compressor Kit....................5-72
Tire Sealant and Compressor Kit Storage.........5-80
Changing a Flat Tire.....................................5-80
Removing the Spare Tire and Tools................5-82
Removing the Flat Tire and Installing the
Spare Tire................................................5-86
Storing a Flat or Spare Tire and Tools................5-90
Compact Spare Tire......................................5-93
Appearance Care............................................5-94
Interior Cleaning...........................................5-94
Fabric/Carpet...............................................5-95
Leather.......................................................5-96
Instrument Panel, Vinyl, and Other Plastic
Surfaces..................................................5-96
Care of Safety Belts......................................5-97
Weatherstrips...............................................5-97Washing Your Vehicle...................................5-97
Cleaning Exterior Lamps/Lenses.....................5-98
Finish Care..................................................5-98
Windshield and Wiper Blades.........................5-99
Aluminum or Chrome-Plated Wheels
and Trim................................................5-100
Tires.........................................................5-100
Sheet Metal Damage...................................5-101
Finish Damage...........................................5-101
Underbody Maintenance...............................5-101
Chemical Paint Spotting...............................5-101
Vehicle Identication....................................
.5-102
Vehicle Identication Number (VIN)................5-102
Service Parts Identication Label...................5-102
Electrical System..........................................5-102
Add-On Electrical Equipment.........................5-102
Headlamp Wiring........................................5-103
Windshield Wiper Fuses...............................5-103
Power Windows and Other Power Options......5-103
Fuses and Circuit Breakers..........................5-103
Floor Console Fuse Block............................5-104
Engine Compartment Fuse Block...................5-105
Capacities and Specications........................5-108
Section 5 Service and Appearance Care
5-2

(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 carry
capacity a tire is certied to carry. The speed rating
is the maximum speed a tire is certied to carry
a load.
Tire Terminology and Denitions
Air Pressure:The amount of air inside the tire
pressing outward on each square inch of the tire.
Air pressure is expressed in pounds per square
inch (psi) or kilopascal (kPa).
Accessory Weight
:This means the combined
weight of optional accessories. Some examples of
optional accessories are, automatic transmission,
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 pounds per square inch (psi) or
kilopascals (kPa) before a tire has built up heat
from driving. SeeInflation - Tire Pressure on
page 5-55.
5-52

Tire Pressure Monitor Operation
This vehicle may have a Tire Pressure Monitor System
(TPMS). The TPMS is designed to warn the driver when a
low tire pressure condition exists. If your vehicle has this
feature, TPMS sensors are mounted onto each tire and
wheel assembly, excluding the spare tire and wheel
assembly, if the vehicle has one. The TPMS sensors
monitor the air pressure in the vehicle’s tires and transmit
the tire pressure readings to a receiver located in the
vehicle.
When a low tire pressure
condition is detected, the
TPMS turns on the low tire
pressure warning light
located on the instrument
panel cluster.At the same time a message to check the pressure in a
specic tire appears on the Driver Information Center
(DIC) display. The low tire pressure warning light and the
DIC warning message come on at each ignition cycle
until the tires are inated to the correct ination pressure.
Using the DIC, tire pressure levels can be viewed by the
driver. For additional information and details about the
DIC operation and displays seeDIC Operation and
Displays on page 3-39andDIC Warnings and Messages
on page 3-42.
The low tire pressure warning light may come on in cool
weather when the vehicle is rst started, and then
turn off as you start to drive. This could be an early
indicator that the air pressure in the tire(s) are getting
low and need to be inated to the proper pressure.
A Tire and Loading Information label shows the size of
your vehicle’s original equipment tires and the correct
ination pressure for your vehicle’s tires when they are
cold. SeeLoading the Vehicle on page 4-22, for an
example of the Tire and Loading Information label and
its location on your vehicle. Also seeInflation - Tire
Pressure on page 5-55.
5-58

GM recommends replacing tires in sets of four.
This is because uniform tread depth on all tires
will help keep your vehicle performing most like
it did when the tires were new. Replacing less
than a full set of tires can affect the braking
and handling performance of your vehicle.
SeeTire Inspection and Rotation on page 5-63for
information on proper tire rotation.
{CAUTION:
Mixing tires could cause you to lose control
while driving. If you mix tires of different
sizes, brands, or types (radial and bias-belted
tires), the vehicle may not handle properly,
and you could have a crash. Using tires of
different sizes, brands, or types may also
cause damage to your vehicle. Be sure to
use the correct size, brand, and type of tires
on all wheels. It is all right to drive with
your compact spare temporarily, as it
was developed for use on your vehicle.
SeeCompact Spare Tire on page 5-93.
{CAUTION:
If you use bias-ply tires on the vehicle, the
wheel rim anges could develop cracks after
many miles of driving. A tire and/or wheel
could fail suddenly, causing a crash. Use only
radial-ply tires with the wheels on the vehicle.
If you must replace your vehicle’s tires with those
that do not have a TPC Spec number, make sure
they are the same size, load range, speed rating,
and construction type (radial and bias-belted tires)
as your vehicle’s 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 on
your vehicle. Non-TPC Spec rated tires may give a
low-pressure warning that is higher or lower than
the proper warning level you would get with TPC
Spec rated tires. SeeTire Pressure Monitor System
on page 5-56.
Your vehicle’s original equipment tires are listed
on the Tire and Loading Information Label.
SeeLoading the Vehicle on page 4-22, for more
information about the Tire and Loading Information
Label and its location on your vehicle.
5-66

Different Size Tires and Wheels
If you add wheels or tires that are a different size than
your original equipment wheels and tires, this may
affect the way your vehicle performs, including its
braking, ride and handling characteristics, stability,
and resistance to rollover. Additionally, if your vehicle
has electronic systems such as, antilock brakes, traction
control, and electronic stability control, the performance
of these systems can be affected.
{CAUTION:
If you add different sized wheels, your vehicle may
not provide an acceptable level of performance and
safety if tires not recommended for those wheels
are selected. You may increase the chance that you
will crash and suffer serious injury. Only use GM
specic wheel and tire systems developed for your
vehicle, and have them properly installed by a GM
certied technician.
SeeBuying New Tires on page 5-65andAccessories
and Modifications on page 5-3for 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 use
spare tires, tires with nominal rim diameters
of 10 to 12 inches (25 to 30 cm), or to some
limited-production tires.
While the tires available on General Motors
passenger cars and light trucks may vary with
respect to these grades, they must also conform
to federal safety requirements and additional
General Motors Tire Performance Criteria (TPC)
standards.
5-67

Tire Chains
{CAUTION:
If your vehicle has P205/55R16 or P205/50R17 size
tires, do not use tire chains. They can damage your
vehicle because 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
you to lose control of your vehicle and you or others
may be injured in a crash.
Use another type of traction device only if its
manufacturer recommends it for use on your
vehicle and tire size combination and road
conditions. Follow that manufacturer’s instructions.
CAUTION: (Continued)
CAUTION: (Continued)
To help avoid damage to your vehicle, drive
slowly, readjust, or remove the device if it is
contacting your vehicle, and do not spin your
vehicle’s wheels.
If you do nd traction devices that will t, install
them on the front tires.
Notice:If your vehicle has a tire size other than
P205/55R16 or P205/50R17, use tire chains only
where legal and only when you must. Use only
SAE Class S-type chains that are the proper size
for your tires. Install them on the front tires
and tighten them as tightly as possible with the
ends securely fastened. Drive slowly and follow
the chain manufacturer’s instructions. If you
can hear the chains contacting your vehicle,
stop and retighten them. If the contact continues,
slow down until it stops. Driving too fast or
spinning the wheels with chains on will damage
your vehicle.
5-70

To store the compact spare tire and tools, follow the
previous procedure without using the stow bolt extension
rod and seeRemoving the Spare Tire and Tools on
page 5-82and follow the removal procedure, in reverse,
for the proper jack storage instructions for this vehicle.
The compact spare tire is for temporary use only.
Replace the compact spare with a full-size tire as soon
as possible.
Compact Spare Tire
{CAUTION:
Driving with more than one compact spare tire at a
time could result in loss of braking and handling.
This could lead to a crash and you or others could
be injured. Use only one compact spare tire at
a time.
This vehicle may have a compact spare tire. Although the
compact spare tire was fully inated when the vehicle
was new, it can lose air after a time. Check the ination
pressure regularly. It should be 60 psi (420 kPa).After installing the compact spare on the vehicle, if the
vehicle has one, stop as soon as possible and make sure
the spare tire is correctly inated. The compact spare is
made to perform well at speeds up to 65 mph (105 km/h)
for distances up to 3,000 miles (5 000 km), so you can
nish your trip and have the full-size tire repaired or
replaced at your convenience. Of course, it is best to
replace the spare with a full-size tire as soon as possible.
The spare tire will last longer and be in good shape in
case it is needed again.
Notice:When the compact spare is installed, do not
take the vehicle through an automatic car wash with
guide rails. The compact spare can get caught on the
rails which can damage the tire, wheel and other
parts of the vehicle.
Do not use the compact spare on other vehicles.
And do not mix the compact spare tire or wheel with other
wheels or tires. They will not t. Keep the spare tire and
its wheel together.
Notice:Tire chains will not t the compact spare.
Using them can damage the vehicle and can damage
the chains too. Do not use tire chains on the compact
spare.
5-93

Tilt Wheel........................................................ 3-6
Time, Setting..................................................3-53
Tire
Pressure Light.............................................3-33
Tire Sealant and Compressor Kit.......................5-80
Tires.............................................................5-48
Aluminum or Chrome-Plated Wheels,
Cleaning...............................................5-100
Buying New Tires........................................5-65
Chains.......................................................5-70
Changing a Flat Tire....................................5-80
Cleaning...................................................5-100
Compact Spare...........................................5-93
Different Size..............................................5-67
If a Tire Goes Flat.......................................5-71
Ination - Tire Pressure................................5-55
Inspection and Rotation................................5-63
Installing the Spare Tire................................5-86
Pressure Monitor Operation...........................5-58
Pressure Monitor System..............................5-56
Removing the Flat Tire.................................5-86
Removing the Spare Tire and Tools...............5-82
Sealant and Compressor Kit..........................5-72
Sidewall Labeling.........................................5-49
Storing a Flat or Spare Tire and Tools............5-90
Terminology and Denitions...........................5-52
Uniform Tire Quality Grading.........................5-67Tires (cont.)
Wheel Alignment and Tire Balance.................5-68
Wheel Replacement.....................................5-69
When It Is Time for New Tires......................5-64
Towing
Recreational Vehicle.....................................4-28
Towing a Trailer..................................4-31, 4-38
Your Vehicle...............................................4-28
Traction
Control System (TCS).................................... 4-7
Traction Control System...................................
3-31
Traction System
Enhanced...................................................3-31
Transmission
Fluid, Automatic...........................................5-19
Transmission Operation, Automatic....................2-26
Transmission Operation, Manual........................2-28
Transportation Program, Courtesy......................7-10
Trunk............................................................2-12
Turn and Lane-Change Signals.......................... 3-7
Turn Signal/Multifunction Lever........................... 3-7
U
Uniform Tire Quality Grading............................5-67
Up-Shift Light.................................................3-28
13