See also:

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. ...

Main Bluetooth hands-free menu
Phone menu Call lists     All calls     Missed calls     Answered calls     Dialed calls     Call duration Phone book ...

Remote control
A remote control is included with the RSE system, which can be used to control both screens in the rear seat as well as other infotainment system functions. See page 254 for more detailed infor ...