See also:

Automatic deactivation during forward travel
The system switches off when a certain driving distance or speed is exceeded. Switch the system back on if necessary. ...

Socket for OBD Onboard Diagnosis
Socket for OBD Onboard Diagnosis On the driver's side is an OBD socket for checking the primary components in the vehicle emissions. ...

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