See also:

Park Distance Control PDC
The conceptThe PDC assists you with maneuvering in tight parking spaces. Acoustic signals and a visual indicator warn you of the presence of an object behind your vehicle. Four ultrasonic sensors ...

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

Interior motion sensor
The windows and glass sunroof must be closed for the system to function properly ...