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:

    Instrument cluster, electronic displays
    1 Symbols and messages, e.g., warnings 2 Range 3 Computer 4 Navigation display Service display 5 Selection list, e.g., radio 6 Transmission displays ...

    Adjusting the side extensions
    Fold the side extensions on the head restraint forward for increased lateral support in the resting position. ...

    The concept
    The DTC system is a version of the DSC in which forward momentum is optimized. The system ensures maximum forward momentum on special road conditions, e.g., unplowed snowy roads, but driving st ...