Navigation Function

The navigation system uses the GPS signals obtained by the GPS antenna, the vehicle speed signal from the ECM/PCM, and the yaw rate sensor contained in the navigation unit to direct the driver from a starting position to a destination. The GPS signals, the vehicle speed and reverse signals, and the yaw rate sensor determine the position of the vehicle icon on the map. The navigation system relies on DVD maps, and points of interest (POI) in order to provide the user with the optimum route between starting and destination positions.