The temperature grades are A (the highest), B, and C, representing the tire’s
resistance to the generation of heat and its ability to dissipate heat when
tested under controlled conditions on a specified indoor laboratory test wheel.
Sustained high temperature can cause the material of the tire to degenerate and
reduce tire life, and excessive temperature can lead to sudden tire failure. The
grade C corresponds to a level of performance which all passenger car tires must
meet under the Federal Motor Vehicle Safety Standard No. 109. Grades B and
A represent higher levels of performance on the laboratory test wheel than the
minimum required by law.
WARNING: The temperature grade for this tire is established for a tire that
is properly inflated and not overloaded. Excessive speed, underinflation, or
excessive loading, either separately or in combination, can cause heat buildup
and possible tire failure.

Tire Pressure Monitoring System (TPMS) - Required Federal

Explanation

Each tire, including the spare (if provided), should be checked monthly

when cold and inflated to the inflation pressure recommended by the

vehicle manufacturer on the vehicle placard or tire inflation pressure label.
(If your vehicle has tires of a different size than the size indicated on the

vehicle placard or tire inflation pressure label, you should determine the

proper tire inflation pressure for those tires.)
As an added safety feature, your vehicle has been equipped

with a tire pressure monitoring system (TPMS) that illuminates

a low tire pressure telltale when one or more of your tires is

significantly under-inflated.
Accordingly, when the low tire pressure telltale illuminates, you should

stop and check your tires as soon as possible, and inflate them to the

proper pressure.
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.
Please note that the TPMS is not a substitute for proper tire maintenance,

and it is the driver’s responsibility to maintain correct tire pressure, even

if under-inflation has not reached the level to trigger illumination of the

TPMS low tire pressure telltale.
Your vehicle has also been equipped with a TPMS malfunction indicator to

indicate when the system is not operating properly. The TPMS malfunction

indicator is combined with the low tire pressure telltale. When the system

detects a malfunction, the telltale will flash for approximately one minute

and then remain continuously illuminated. This sequence will continue

upon subsequent vehicle start-ups as long as the malfunction exists.
When the malfunction indicator is illuminated, the system may not be able

to detect or signal low tire pressure as intended.
TPMS malfunctions may occur for a variety of reasons, including the

installation of replacement or alternate tires or wheels on the vehicle that

prevent the TPMS from functioning properly.
Always check the TPMS malfunction telltale after replacing one or more

tires or wheels on your vehicle to ensure that the replacement or alternate

tires and wheels allow the TPMS to continue to function properly.