In a process for adjusting a movable motor vehicle part (33) between at least two positions by means of a drive (42), the monitoring area (13, 30, 31) outside and/or inside the motor vehicle (10) is checked for at least one perturbing object (32). When a perturbing object (32) is detected within the monitoring area (13, 30, 31), the drive (42) is turned off or reversed. In this way, perturbing objects can be detected without contact and can be protected against pinching even before they are actually pinched.