See also:

Stowing cargo
BMW X5 BMW X5 BMW X6 BMW X6 ▷ Very heavy cargo: when the rear seat is not occupied, secure each of the outer safety belts in the BMW X5 in the opposite buckle. ▷ Heavy cargo: ...

Initialization after a power failure
After a power failure, it is only possible to raise the roof, if necessary. Have the system initialized by your service center. ...

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