See also:

What to do if...
Only a black screen is visible. Switch on the system. There are no options available on the screen. Switch over between the display screens. Radio stations or TV channels are grayed out ...

Switching the microphone to mute
When a call is active, the microphone can be muted. 1. "Telephone" 2. "Active calls" 3. "Microphone mute" A microphone that has been switched to mute is autom ...

The concept
The vehicle alarm system responds to: ▷ Opening of a door, the hood or the trunk lid. ▷ Movements in the vehicle. ▷ Changes in the vehicle tilt, e.g., during attempts to steal a ...