DOT Quality Grades

Treadwear
Traction AA A B C
Temperature A B C

All passenger car tires must conform to Conform to Federal Safety Requirements
All passenger car tires must conform to Federal Safety Requirements in addition to these grades.◀

    See also:

    The concept
    The system issues a two-phase warning of a danger of collision at speeds above approx. 10 mph/15 km/h. The time of these warnings may vary depending on the current driving situation. The collisi ...

    Speed limit
    Display of a speed limit which, when reached, should cause a warning to be issued. Renewed warning if the vehicle speed drops below the set speed limit once by at least 3 mph/ 5 km/h. Displayi ...

    Gas station recommendation
    The remaining range is calculated, and if necessary gas stations along the route are displayed. 1. "Navigation" 2. "Route information" 3. "Recommended refuel" A lis ...