TRAILER SENSING SYSTEM WITH RADAR

A trailer monitoring system includes a range sensor facing a rear direction and a camera monitor system, which includes a first mirror replacement assembly having a housing supporting a rear facing camera. One or more controllers are in communication with the range sensor, with the one or more controllers identifying an existence of a trailer surface based on a reading from the range sensor. In accordance with a detection of the trailer surface, the one or more controllers activate the camera monitor system for trailer monitoring.