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

See also:
Notes
BMW CD/DVD players and changers are officially
designated Class 1 laser products. Do not operate if the cover is damaged; otherwise,
severe eye damage can result.
Do not use self-recorded CDs/DV ...
Switching on/off
1. "Settings"
2. "Head-up display"
3. "Head-up display"
Switch the Head-up Display ON/OFF as required. ...
System limits
Be alert
Due to system limitations, warnings may
be not be issued at all, or may be issued late or
improperly. Therefore, always be alert and ready
to intervene; otherwise, there is the danger ...
