Department Of Transportation Uniform Tire Quality Grades

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:

Base System
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 st ...

Tread Wear Indicators
Tread wear indicators are in the original equipment tires to help you in determining when your tires should be replaced. 1 — Worn Tire 2 — New Tire These indicators are molded into the b ...

Call Termination
To end a call in progress, momentarily press the button. Only the active call(s) will be terminated and if there is a call on hold, it will become the new active call. If the active call is termi ...