See also:

Issuing a warning
If the vehicle begins leaving the lane and a lane marking has been detected, the steering wheel begins vibrating. If the turn signal is set before the lane is changed, a warning is not issued. ...

Tone
Only treble and bass can be set in the rear. The settings are made separately for the left and right headphones. Operation is the same as for the front tone. ...

Controls
The audio and video sources can be controlled using the: > Buttons near the CD/DVD player > iDrive > Buttons on the steering wheel, > Programmable memory keys, > Voice activation s ...