Navigation System
The navigation system is an option for vehicles with the Premium [8-inch (203 mm) touchscreen], THX® or Sony® audio system. The navigation system guides the user to a pre-entered destination. Map data is read from the map data SD card plugged into the media hub. The Accessory Protocol Interface Module (APIM) calculates route information based on Global Positioning System (GPS) data received by the Global Positioning System Module (GPSM). The APIM also uses vehicle speed and transmission gear selected signals received through the network to detect vehicle speed and direction, resulting in more accurate navigation tracking. The navigation display is shown on the FDIM .
The compass heading is derived from the GPS antenna signal. There are no serviceable parts for the compass.
The voice recognition system allows the user to interface with the system without using the touchscreen. A microphone located in the headliner provides a direct input to the APIM .
If equipped with a rear view camera, the video feed for the camera is provided to the APIM by the rear view camera while the vehicle is in reverse.