The concept
The parking brake is primarily intended to prevent the vehicle from rolling while parked; it brakes the rear wheels.
See also:
Maximum cooling
Press the button.
The system is set to the lowest
temperature, maximum air volume
and recirculated-air mode.
Air flows out of the vents for the upper body region.
Open them for this purpose.
...
Setting
Pull the switch.
The LED lights up.
The indicator lamp lights up in
red. The
parking brake is set.
Lower lamp: indicator lamp in
Canadian
models
Set the parking brake and further secur ...
BMW 7 Series Owners Manual
h4 {color:#800000}
h3 {color:#0033CC}
h2 {color:#008000}
h1 {color:#FF0000}
...