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:

Lumbar Support — If Equipped
This feature allows you to increase or decrease the amount of lumbar support. The control lever is located on the outboard side of the driver’s seatback. Turn the control lever downward to inc ...

Frontal Area
The frontal area is the maximum height multiplied by the maximum width of the front of a trailer. ...

Tire Pressure Monitoring Low Pressure Warnings
The TPM Telltale Light will illuminate in the instrument cluster and a chime will sound when tire pressure is low in one or more of the four active road tires. In addition, the EVIC will displ ...