Uniform tire quality grading standards
This information indicates the relative performance of passenger car tires in the area of treadwear, traction, and temperature resistance.
This is to aid the consumer in making an informed choice in the purchase of tires.
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 quality grades apply to new pneumatic tires for use on passenger cars. However, they do not apply to deep tread, winter type snow tires, space-saver or temporary use spare tires, tires with nominal rim diameters of 12 inches or less, or to some limited production tires.
All passenger car tires must conform to Federal Safety Requirements in addition to these grades.
See also:
Brake system warning light
WARNING
● Driving with the brake system warning light on is dangerous. This indicates
your brake system may not be working properly. If the light remains illuminated,
have the brakes insp ...
Adverse safety consequences of under-inflation
Driving at high speeds with excessively low tire pressures can cause the tires
to flex severely and to rapidly become hot. A sharp increase in temperature could
cause tread separation, and failure ...
Safety symbol
You will find a circle with a slash through it in this manual. This symbol means
“Do not”, “Do not do this”, or “Do not let this happen”, depending upon the context. ...
