The concept
The parking brake is primarily intended to prevent the vehicle from rolling while parked; it brakes the rear wheels.

See also:
Opening the main menu
Press the button.
The main menu is displayed.
All iDrive functions can be called up via the main
menu. ...
Entertainment
The chapter helps assure your enjoyment when
receiving radio and television stations and playing
CDs, DVDs and tracks from the music collection. ...
Text messages
Text messages in combination with a symbol in
the instrument cluster explain a Check Control
message and the meaning of the indicator and
warning lamps. ...
