Patent 7786849 was granted and assigned to Chrysler on August, 2010 by the United States Patent and Trademark Office.
A proximity sensor system for a vehicle includes a first remote sensor that senses objects in a rearward area relative to the vehicle. A trailer detection module determines that one of the objects is a trailer that is attached to the vehicle based on a repeating pattern of signals from the first remote sensor. A response module selectively responds to the objects other than the trailer based on the objects outside of a predetermined distance threshold. An indicator responds to response module signals.