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

See also:
Requirements
▷ Equipment version with full preparation
package mobile phone.
An Emergency Request can be made, even
if no mobile phones are paired with the vehicle.
▷ BMW Assist is activated.
...
Context help - Owner's
Manual to the temporarily
selected function
The relevant information can be opened directly.
Opening during operation via iDrive
To move directly from the application on the
Control Display to the options menu:
1. Press the button or move ...
Arming and disarming the alarm
system
When you lock or unlock the vehicle, either with
the remote control or at the door lock, the alarm
system is armed or disarmed at the same time.
Door lock and armed alarm system
Unlocking via th ...
