Department Of Transportation Uniform Tire Quality Grades

The following tire grading categories were established by the National Highway Traffic Safety Administration. The specific grade rating assigned by the tire’s manufacturer in each category is shown on the sidewall of the tires on your vehicle.

All passenger car tires must conform to Federal safety requirements in addition to these grades.

See also:

Engine
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Protection
For appearance purposes, you may wish to protect the acrylic (cloth) top periodically. Afabric protectant such as Scotchguard is suggested. The top should be clean and dry before application of ...

Air Conditioning Control
Press this button to engage the Air Conditioning. A light will illuminate when the Air Conditioning system is engaged. Rotating the dial left into the blue area of the scale indicates cooler ...