Adjusting the height: electrical
The head restraints on the left and right rear passenger seats extend automatically whenever a passenger in the rear seat fastens his or her safety belt.

In addition, the height of the head restraint can be adjusted electrically.
Extending the head restraint
To prevent possible personal injury and property damage, always ensure that the area above the head restraints is clear and unobstructed before extending them upward.
The height adjustment of the head restraint is deactivated when the safety switch for the rear windows, has been pressed.
See also:
Integrated Owner's Manual inthe vehicle
The integrated Owner's Manual can be displayed
on the Control Display. The equipment
and functions that are in the vehicle are described
therein. ...
Switching on automatically
Select transmission position R with the engine
running. ...
BMW X5
The clothes hooks are located at the grab handles
in the rear. ...
