The function is available in the vehicle when it is dark.
The front passenger seat is not occupied or a child is sitting in a child restraint system.
The hand movement is made by the driver in the interaction area above the front passenger seat.
The function enhances the comfort in the vehicle interior.
Stretching out a hand over the front passenger seat switches a search light on automatically for the driver when it is dark. Pulling the hand back switches the search light off again.