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:

    Special windshield
    The windshield is part of the system. The shape of the windshield makes it possible to display a precise image. A film in the windshield prevents double images from being displayed. Therefore, ...

    Switching off automatically
    The system switches off and the LED goes out: After approx. 160 ft/50 m when driving forward. Above approx. 22 mph/36 km/h when driving forward. Switch on the system again if necessary. ...

    What to do if...
    Information on suitable mobile phones. Appointments, tasks, notes, text messages, or e-mails from the mobile phone are not displayed. The mobile phone is not capable of the missing function ...