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:

Initial check
Turning the ignition key to MAR, the multifunction display shows the message “Check active”: the diagnostic phase of all the electronic systems on the car has started. This lasts few seconds: if n ...

Front Windshield Wiper Operation
There are five different modes of operation for the front windshield wipers. The windshield wiper lever can be raised or lowered to access these modes: Windshield Wiper Operation Windshield Wip ...

Brake/Transmission Shift Interlock System
This vehicle is equipped with a Brake Transmission Shift Interlock System (BTSI) that holds the shift lever in the PARK position when the ignition switch is in the LOCK/ OFF position. To move the ...