See also:

What to do if...
Only a black screen is visible. Switch on the system. There are no options available on the screen. Replace remote control batteries. Radio stations or TV channels are grayed out and c ...

Route criteria
General information ▷ The route calculated can be influenced by selecting certain criteria. ▷ The route criteria can be changed when the destination is entered and during destination ...

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