See also:

DOT Quality Grades
Treadwear Traction AA A B C Temperature A B C Conform to Federal Safety Requirements All passenger car tires must conform to Federal Safety Requirements in addition to these grades.◀ ...

The BMW X3 xDrive35i: Class leading performance and efficiency.
The new top model BMW X3 xDrive35i features BMW's newest turbocharged 3.0-liter inline-6 "N55" engine combining direct fuel injection, twin-scroll turbo technology and Valvetronic. The N ...

Deactivating HDC
Press the button again and the LED goes out. HDC is automatically deactivated above approx. 37 mph/60 km/h. ...