See also:

Adjusting the side extensions
Fold the side extensions on the head restraint forward for increased lateral support in the resting position. ...

Switching off automatically
System switches off: above approx. 9 mph/ 15 km/h. Switch on the system again if necessary. ...

Switching spoken instructions on/off
The setting is stored for the remote control currently in use. 1. "Navigation" 2. "Map" 3. "Voice instructions" ...