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:

    System limits
    Personal responsibility The system cannot serve as a substitute for the driver's personal judgment of the traffic situation. In the event of a warning, do not jerk the steering wheel, as you ...

    Automatic Service Request
    Data regarding the maintenance status or legally mandated inspections of the vehicle are automatically transmitted to your service center before a service due date. You can check when your serv ...

    Current office
    The number of unread messages and active tasks as well as upcoming appointments are displayed. 1.  "Office" 2.  "Current office" 3.  Selecting the desired entry ...