Certain models of General Motors vehicles come with an in-dash navigation system installed that you can use to help you get around in unfamiliar areas or plan a road trip. The GM OEM Navigation system not only controls the GPS system in your vehicle but also controls the audio system, allowing you to select radio stations as well as control the navigation functions with a touch screen interface. By calibrating the system to your area and entering in information, you will get assistance to reach your destination quickly. Writer Bio

Instructions for Calibrating and Using GM OEM Navigation - 48