See also:

Malfunction
A message is displayed in the instrument cluster. HDC is not available, e.g., due to elevated brake temperatures. ...

Switching off automatically
The system switches off and the LED goes out: After approx. 33 ft/10 m when driving forward. Above approx. 9 mph/15 km/h when driving forward. Switch on the system again if necessary. ...

DVD con
With the DVD control, you can select the title and chapter, open the DVD-specific menu, and operate functions such as Language, Fast forward and Reverse or Freeze frame. A DVD can briefly deact ...