GM Service Manual Online
For 1990-2009 cars only

This section includes basic information that you need to know about the map database.

The maps are stored on a DVD. The 48 contiguous United States and portions of Canada are contained on one disc.

Detailed Areas

Road network attributes are contained in the map database for detailed areas. Attributes include information such as street names, street address, turn restrictions, etc. A detailed area will include all major highways, service roads, and residential roads. The detailed areas include points of interest (POI) such as: restaurants, airports, banks, hospitals, police stations, gas stations, tourist attractions, historical monuments, etc. The map database may not include data for newly constructed areas or map database corrections that are completed after the production of the disc. The navigation system will provide full route guidance in the detailed map areas.

Limited Guidance Areas

Any area that is not classified as detailed is a limited guidance area. Limited guidance streets will be displayed on the map display but route guidance may not be given on these streets. Some POI categories, such as the city center POI category, and some street addresses are included in the limited guidance areas.

The navigation system will inform you by voice prompts when you are traveling into a limited guidance area where route guidance will not be available. The street maps and the directional arrow displayed on the navigation system can then be used to determine the remaining route to your destination.

Installing the DVD Map Disc

Your dealer/retailer may have installed the map DVD. If the map DVD was not installed, do the following to load it:

Read the following steps completely before operating this feature.

  1. Turn the ignition on.
  2. Push the (open/close faceplate) button and the faceplate will open.
  3. Load the map DVD into the DVD slot by inserting it partway. The system will pull it in.
  4. Wait until the DVD is loaded properly and then push the (open/close faceplate) button to close the faceplate.

Once the map DVD is inserted correctly, the system will display the CAUTION screen.

Agree: Touch this screen button to proceed to the navigation system.

The map will appear showing your current vehicle position.

DVD Map Disc Messages

If an error appears on the display and/or the map disc comes out, it could be for one of the following reasons:

    • If the map disc was installed into the CD slot. See "Installing the DVD Map Disc" previously.
    • It is very hot, when the temperature returns to normal, the map disc should play.
    • You are driving on a very rough road. When the road becomes smoother, the map disc should play.
    • The map disc is dirty, scratched, wet, or upside down.

If any error occurs repeatedly or if an error cannot be corrected, contact your dealer/retailer.

Ejecting the DVD Map Disc

When the DVD map disc is not loaded, you will not be able to use the navigation portion of the system.

  1. Turn the ignition on.
  2. Push the (open/close faceplate) button and the faceplate will open.
  3. Press the DVD key, located next to the bottom slot. The disc will eject.
  4. Wait until the DVD is ejected properly and then push the (open/close faceplate) button to close the faceplate.

Setting the Search Area

See Enter Destination for information on changing the search area.

Map Adjustments

The system allows you to adjust the scale of view on the map. Also, as you drive, the map will scroll automatically based on the direction you are traveling.

Map Scales


Object Number: 1470126  Size: A1

To view a larger or smaller scale of the map, touch the map scale arrows.

You can change the level of map detail by either zooming in or zooming out using the arrow screen buttons or by touching the scale on the bar. The system will adjust the map accordingly. The scale of a map can range from 1/32 of a mile (0.05 km) to 128 miles (256 km).

Scrolling the Map


Object Number: 811648  Size: A1

Touch anywhere on the map screen twice and the scroll symbol will appear. Use this feature to scroll across the map.

If scrolling while your vehicle is in PARK (P), the system will scroll initially at a slower rate. It will increase if you continue touching the map screen.

If scrolling while your vehicle is in motion, the system will scroll to that location and stop.

If you have used the scroll feature to scroll the map and your vehicle icon becomes lost, press the NAV (navigation) hard key to return to the current vehicle location on the map.

You can use the scroll feature on the map to set a destination. See "Map" under Enter Destination for more information.