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:

    At a glance
    At a glance 1 Function bar 2 Route section with traffic obstruction 3 Traffic sign for traffic obstruction 4 Planned route 5 Current location 6 Upper status field 7 Lower status field Lines ...

    Switching on wipers
    Press the wiper lever upward, arrow 1. The lever automatically returns to its initial position when released. Normal wiper speed Press up once. The system switches to operation in the intermitte ...

    Malfunction
    The yellow warning lamp flashes and then lights up continuously. A Check Control message is displayed. No flat tire can be detected. Display in the following situations: ► A wheel wi ...