See also:

Navigation system
General informationThe navigation system can determine the precise position of the vehicle, with the aid of satellites and vehicle sensors, and can reliably guide you to every entered destination. ...

Deleting the button assignments
1. Press buttons 1 and 8 simultaneously for approx. five seconds. 2. "OK" ...

Controls
Controls 1 Volume, on/off 2 Change wave band 3 Change entertainment sources 4 Change station/track 5 Programmable memory buttons ...