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Tire Sizing Chart
Tire Sizing Chart
P Passenger Car tire size based on U.S. design standards
( ....blank.... ( Passenger Car tire based on European design standards
LT Light Truck tire based on U.S. design standards
T Temporary spare tire
31 Overall diameter in inches (in)
215 Section width in millimeters (mm)
65 Aspect Ratio of section height to section width of tire, written in percent (%)
10.5 Section width in inches (in)
R 9 R 9 means radial construction
9 D 9 means diagonal or bias construction
15 Rim diameter in inches (in)292 STARTING AND OPERATING
Page 295 of 467
Tire Sizing Chart
95 Load Index (a numerical code associated with the maximum load a tire can carry)
H A symbol indicating the range of speeds at which a tire can carry a load corresponding to its load
index under certain operating conditions
The maximum speed corresponding to the speed symbol should only be achieved under specified
operating conditions (i.e., tire pressure, vehicle loading, road conditions, and posted speed limits)
( ....blank.... (
² Absence of any text on the sidewall of the tire indicates a Standard Load (SL) Tire
² Extra Load (XL) = Extra load (or reinforced) tire
² Light Load = Light load tire
² C, D, E = Load range associated with the maximum load a tire can carry at a specified pressure
Maximum
Load Maximum load indicates the maximum load this tire is designed to carry
Maximum
Pressure Maximum pressure indicates the maximum permissible cold tire inflation pressure for this tire STARTING AND OPERATING 293
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Keep dismounted tires in a cool, dry place with as little
exposure to light as possible. Protect tires from contact
with oil, grease, and gasoline.
Replacement Tires
The tires on your new vehicle provide a balance of many
characteristics. They should be inspected regularly for
wear and correct cold tire inflation pressure. The manu-
facturer strongly recommends that you use tires equiva-
lent to the originals in size, quality and performance
when replacement is needed (refer to the paragraph on
ªTread Wear Indicatorsº). Refer to the ªTire and Loading
Informationº placard for the size designation of your tire.
The service description and load identification will be
found on the original equipment tire. Failure to use
equivalent replacement tires may adversely affect the
safety, handling, and ride of your vehicle. We recommend
that you contact your original equipment or an autho-
rized tire dealer with any questions you may have on tire
specifications or capability. WARNING!Do not use a tire, wheel size or rating other than that
specified for your vehicle. Some combinations of
unapproved tires and wheels may change suspension
dimensions and performance characteristics, result-
ing in changes to steering, handling, and braking of
your vehicle. This can cause unpredictable handling
and stress to steering and suspension components.
You could lose control and have an accident resulting
in serious injury or death. Use only the tire and
wheel sizes with load ratings approved for your
vehicle. STARTING AND OPERATING 307
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Page 313 of 467

pressure will also increase as the vehicle is driven - this
is normal and there should be no adjustment for this
increased pressure.
² The TPM System will warn the driver of a low tire
pressure if the tire pressure falls below the low-
pressure warning limit for any reason, including low
temperature effects and natural pressure loss through
the tire.
² The TPM System will continue to warn the driver of
low tire pressure as long as the condition exists, and
will not turn off until the tire pressure is at or above
the recommended cold placard pressure. Once the low
tire pressure warning (Tire Pressure Monitoring Tell-
tale Light) illuminates, you must increase the tire
pressure to the recommended cold placard pressure in
order for the Tire Pressure Monitoring Telltale Light to
turn off. The system will automatically update and the
Tire Pressure Monitoring Telltale Light will turn off once the system receives the updated tire pressures.
The vehicle may need to be driven for up to 10 minutes
above 15 mph (25 km/h) in order for the TPMS to
receive this information.
þ For example, your vehicle may have a recom-
mended cold (parked for more than three hours)
placard pressure of 30 psi (207 kPa). If the ambient
temperature is 68 F (20 C) and the measured tire
pressure is 27 psi (186 kPa), a temperature drop to 20
F (-7 C) will decrease the tire pressure to approxi-
mately 23 psi (157 kPa). This tire pressure is suffi-
ciently low enough to turn ON the Tire Pressure
Monitoring Telltale Light. Driving the vehicle may
cause the tire pressure to rise to approximately 27
psi (186 kPa), but the Tire Pressure Monitoring
Telltale Light will still be ON. In this situation, the
Tire Pressure Monitoring Telltale Light will turn
OFF only after the tires are inflated to the vehicle's
recommended cold placard pressure value. STARTING AND OPERATING 311
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CAUTION!² The TPMS has been optimized for the original
equipment tires and wheels. TPMS pressures and
warning have been established for the tire size
equipped on your vehicle. Undesirable system
operation or sensor damage may result when us-
ing replacement equipment that is not of the same
size, type, and/or style. Aftermarket wheels can
cause sensor damage. Do not use aftermarket tire
sealants or balance beads if your vehicle is
equipped with a TPMS, as damage to the sensors
may result.
² After inspecting or adjusting the tire pressure,
always reinstall the valve stem cap. This will
prevent moisture and dirt from entering the valve
stem, which could damage the Tire Pressure Moni-
toring Sensor. NOTE:
² The TPMS is not intended to replace normal tire care
and maintenance, or to provide warning of a tire
failure or condition.
² The TPMS should not be used as a tire pressure gauge
while adjusting your tire pressure.
² Driving on a significantly under-inflated tire causes
the tire to overheat and can lead to tire failure.
Under-inflation also reduces fuel efficiency and tire
tread life, and may affect the vehicle's handling and
stopping ability.
² The TPMS is not a substitute for proper tire mainte-
nance, and it is the driver 's responsibility to maintain
correct tire pressure using an accurate tire pressure
gauge, even if under-inflation has not reached the
level to trigger illumination of the Tire Pressure Moni-
toring Telltale light.312 STARTING AND OPERATING
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² Seasonal temperature changes will affect tire pressure,
and the TPMS will monitor the actual tire pressure in
the tire.
BASE SYSTEM Ð IF EQUIPPED
The Tire Pressure Monitor System (TPMS) uses wireless
technology with wheel rim mounted electronic sensors to
monitor tire pressure levels. Sensors, mounted to each
wheel as part of the valve stem, transmit tire pressure
readings to the Receiver Module.
NOTE: It is particularly important for you to check the
tire pressure in all of the tires on your vehicle monthly
and to maintain the proper pressure.
The TPMS consists of the following components:
² Receiver Module
² Four Tire Pressure Monitoring Sensors
² Tire Pressure Monitoring Telltale Light Tire Pressure Monitoring Low Pressure Warnings
The Tire Pressure Monitoring Telltale Light will
illuminate in the instrument cluster and a chime
will sound when tire pressure is low in one or
more of the four active road tires. Should this occur, you
should stop as soon as possible, check the inflation
pressure of each tire on your vehicle, and inflate each tire
to the vehicle's recommended cold placard pressure
value. Once the system receives the updated tire pres-
sures, the system will automatically update and the Tire
Pressure Monitoring Telltale Light will turn off. The
vehicle may need to be driven for up to 10 minutes above
15 mph (25 km/h) in order for the TPMS to receive this
information.
Check TPMS Warning
The Tire Pressure Monitoring Telltale Light will flash on
and off for 75 seconds and then remain on solid when a
system fault is detected. The system fault will also sound
a chime. If the ignition key is cycled, this sequence will STARTING AND OPERATING 313
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repeat, providing the system fault still exists. The Tire
Pressure Monitoring Telltale Light will turn off when the
fault condition no longer exists. A system fault can occur
due to any of the following:
1. Jamming due to electronic devices or driving next to
facilities emitting the same Radio Frequencies as the TPM
sensors.
2. Installing some form of aftermarket window tinting
that affects radio wave signals.
3. Lots of snow or ice around the wheels or wheel
housings.
4. Using tire chains on the vehicle.
5. Using wheels/tires not equipped with TPM sensors.
NOTE:
1. The compact spare tire (if so equipped) does not have
a tire pressure monitoring sensor. Therefore, the TPMS
will not monitor the pressure in the compact spare tire. 2. If you install the compact spare tire in place of a road
tire that has a pressure below the low-pressure warning
limit, upon the next ignition key cycle, a chime will
sound and the TPM Telltale Light will turn ON.
3. After driving the vehicle for up to 10 minutes above 15
mph (25 km/h), the TPM Telltale Light will flash on and
off for 75 seconds and then remain on solid.
4. For each subsequent ignition key cycle, a chime will
sound and the TPM Telltale Light will flash on and off for
75 seconds and then remain on solid.
5. Once you repair or replace the original road tire, and
reinstall it on the vehicle in place of the compact spare,
the TPMS will update automatically and the TPM Telltale
Light will turn OFF, as long no tire pressure is below the
low-pressure warning limit in any of the four active road
tires. The vehicle may need to be driven for up to 10
minutes above 15 mph (25 km/h) in order for the TPMS
to receive this information.314 STARTING AND OPERATING
Page 317 of 467
PREMIUM SYSTEM Ð IF EQUIPPED
The Tire Pressure Monitor System (TPMS) uses wireless
technology with wheel rim mounted electronic sensors to
monitor tire pressure levels. Sensors, mounted to each
wheel as part of the valve stem, transmit tire pressure
readings to the Receiver Module.
NOTE: It is particularly important for you to check the
tire pressure in all of the tires on your vehicle monthly
and to maintain the proper pressure. The TPMS consists of the following components:
² Receiver Module
² Four Tire Pressure Monitoring Sensors
² Three Trigger Modules (mounted in three of the four
wheel-wells)
² Various Tire Pressure Monitoring System Messages,
which display in the Electronic Vehicle Information
Center (EVIC)
² Tire Pressure Monitoring Telltale Light STARTING AND OPERATING 315
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