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-ROM. The 48 contiguous Unites States and portions of Canada are contained on one disc. The U.S. map database includes interstate freeways, state highways, country roads and major and general streets.

Refer to the "Navigation System Map Disc" manual to view the explanation of map coverage. The map disc manual will be in your map DVD case when the vehicle is delivered from the factory.

When your vehicle is delivered from the factory, the dealer may have installed the map DVD. If the DVD was not installed in your vehicle when first purchased, do the following:

  1. Turn the ignition switch to ON or ACCESSORY.
  2. If already loaded, eject the map DVD or audio CD from the slot.
  3. Load the map DVD into the slot by inserting it partway. The system will pull it in.

Once the DVD is inserted correctly, you will have the following two choices:

    • ENG (English)
    • FR (French)

You can select the language at this time. See "Language" under Screen Setup for information on choosing a language. Once a language has been selected, select NEXT to plan a route. The map will appear showing your current vehicle position.

Map Adjustments

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

To view a larger or smaller scale of the map, press the zoom in or zoom out keys. See "Hard Keys" under Using the Navigation System for more information.

Map Scales

The scale of a map can range from 1/32 of a mile (0.05 km) to 128 miles (206 km).