See also:

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

General information
Moving parts need to be broken in to adjust to each other. The following instructions will help achieve a long vehicle life and good economy. ...

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