TRW's Lane Departure Warning and Lane Guidance Systems utilize a forward-facing video camera mounted behind the rear view mirror to detect the lane markings on a highway and alongside many types of roadways. In the case of Lane Departure Warning, if a driver does not intentionally indicate a lane change through the use of the turn signal, an audible or haptic warning alerts the driver that the vehicle has drifted from the lane. Lane Guidance functionality integrates a TRW electric steering system with the video system. As with Lane Departure Warning, the video system detects if the vehicle is drifting from the center of its lane and the electric steering provides a torque that helps to guide the driver back to the center of the lane. TRW’s lane departure warning utilizes a camera to monitor the road ahead. Lane guidance communicates with the vehicle’s steering system at all times.   TRW’s lane guidance system alerts the driver and the electric steering provides a torque to help guide the driver onto a safer path.