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:

Base System
This is the TPMS warning indicator located in the instrument cluster. The TPMS uses wireless technology with wheel rim mounted electronic sensors to monitor tire pressure levels. Sensors, mounte ...

Inefficient abs system
(amber) Turning the ignition key to MAR the warning light turns on, but it should go off after few seconds. The warning light turns on when the system is inefficient or unavailable. In this ca ...

Mix Mode
Air comes from the floor, defrost and side window demister outlets. This mode works best in cold or snowy conditions. It allows you to stay comfortable while keeping the windshield clear. ...