See also:

Replacing batteries in the remote key/ PCC
The battery/batteries in the remote key/PCC should be replaced if: The information symbol lights up and a text appears in the information display. and/or the vehicle's locks repeatedly do ...

From outside the vehicle
The remote key locks and unlocks all of the doors and the tailgate. Before the vehicle can be locked from the outside with the remote key, the driver's door must be closed. Any other door/tailg ...

Call volume
Call volume can be only be adjusted during a call. Use the buttons in the steering wheel keypad or the infotainment system’s VOL control. ...