Park Assist Sensor: Description
WARNING: This page is about a different car, the 2006 Dodge Magnum, 2006 Dodge Charger, and 2006 Chrysler 300. However, it is still accessible from the selected car via links, so may be relevant.
The Park Assist Sensors generate ultrasonic pulses when triggered by the park assist module when an obstacle is detected. The sensors then signal the module when reflected ultrasonic pulses are received.
The Park Assist Sensors are located in the rear bumper fascia mounted equally apart. The sensors detect objects with an ultrasonic pulse that reflects off the object and then is sent to the module to determine the distance of the object.