See also:

Low battery voltage
If the battery voltage is too low, the parking brake cannot be applied or released. Connect an auxiliary battery if the battery voltage is too low, see page 114. ...

Clearing the phone book
In phone mode, all entries in the infotainment system's phone book can be cleared in Phone menu Phone book Clear phone book. NOTE Clearing the entries in the infotainment system's phon ...

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 ...