Department Of Transportation Uniform TireQuality 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:

Parking
Switch off the engine, pull up the handbrake and engage a gear (1st gear or reverse, according to whether the vehicle is facing up or downhill) and leave the wheels turned. If the vehicle is left ...

Materials Added To Fuel
All gasoline sold in the United States is required to contain effective detergent additives. Use of additional detergents or other additives is not needed under normal conditions and would result ...

General warnings
Failure indications shown (only for some versions) on the reconfigurable multifunction display together with buzzer sounding (adjustable) and warning light (if any) coming on on the cluster, are a ...