The parking assistance system supports the driver’s parking attempt by acoustic and optic signals. The PAS is automatically activated when going into reverse. The distance to the barrier is indicated to the driver by a repeated warning signal. With the distance decreasing, the frequency of the acoustic signal increases, or the color of the LED display changes. The system uses ultrasonic detectors and can be installed in the rear as well as in the front of the vehicle.

While towing a trailer, the rear parking assistance system should be deactivated to avoid incorrect information. The deactivation of the PAS is carried out by the ERICH JAEGER trailer control device after the trailer identification. Alternatively, the deactivation can be carried out by a micro switch (switch with “normally closed” or “normally open” function), which can be integrated into the trailer socket.