See also:

Steep inclines and/or heavy loads
ACC is primarily intended for use on fairly level roads. The system may have difficulty maintaining the correct distance to a vehicle ahead on steep inclines, if the vehicle is carrying a heavy lo ...

Cleaning the seat belts
Clean only with lukewarm water and a mild soap solution. ...

Muting
Audio for the rear screens can be muted from the front center control panel. This function can be activated under RSE settings Mute as explained in points 2-4 in the section "Selecting ...