GM Service Manual Online
For 1990-2009 cars only

This section presents basic information needed to operate the navigation system.

Use the keys located on each side of the navigation screen, as well as the available touch-sensitive screen buttons, to operate the system. See Navigation System Overview for more information on location.

Once the vehicle is moving, various functions become disabled to reduce driver distraction.

Hard Keys

The following hard keys are located to the left of the navigation screen:

BAND: Press to access the band screen and switch between AM, FM1, FM2, XM1, XM2, and WX (if equipped). See "Finding a Station" under Navigation Audio System.

CD: Press to play a CD. The CD screen displays. See Six-Disc CD Changer or CD/DVD Player.

DVD: Press to play a DVD. The DVD screen displays. See CD/DVD Player.

TUNE/SEEK : Press the up or down arrows to go to the next or previous radio station and stay there. See "Finding a Station" under Navigation Audio System.

/ (Audio/Adjust): Press to view the main audio menu. See "Main Audio Menu" under Navigation Audio System.

PWR-VOL (Power/Volume Knob): Press the knob to turn the audio and navigation systems on and off. Turn the knob to increase or decrease the volume to the audio system.

The following hard keys are located to the right of the navigation screen:

RPT: Press to repeat the current voice guidance navigation prompt.

MAP: Press to view the map screen showing current vehicle position.

The map screen can also display the following information:

    • North or Heading Up symbol. See Symbols.
    • Map scale. See Maps.
    • Distance to destination.
    • GPS symbol if GPS signal is not being received. See Global Positioning System (GPS).
    • Selected options for reaching your current destination.
    • Driver Information.
    • Radio band and presets.
ROUTE: Press to display the PLAN ROUTE menu. See Plan Route.

MENU: Press to display the SETUP MENU. See Setup Menu.

TILT : Press to open the navigation system faceplate for loading or removing the map DVD, a video DVD, or an audio CD. This key can only be used while the vehicle is in P (Park).

Alpha-Numeric Keypad

Letters of the alphabet, symbols, punctuation, and numbers, when available, display on the navigation screen as an alpha or numeric keypad. The alpha keypad displays when the system needs a city or street name, entered. A Char at the bottom of the alpha keypad to access the numeric keypad can be touched when entering a house address, punctuation mark, or other character. Touch A - Z to return to the alpha keypad.

All characters are touch-sensitive screen buttons. Touch a character to select it.

Select the space symbol to enter a space between characters or the words of a name.

Select the backspace symbol if an incorrect character has been selected.

To make the name selections easier, the system only allows a selection of a character which can follow the last one entered. For example, if Z is entered, T could not be entered after it. The system highlights the available characters and darken the unavailable characters.

If unsuccessful when entering a name, it may need to be entered differently. It is also possible that the map DVD database may not contain that information or the correct search area has not been selected. See Database Coverage Explanations for more information.

Touch Sensitive Buttons

Touch-sensitive buttons are located on the screen. After successfully selecting a screen button, a beep is heard. These buttons highlight when a feature is available and are dim when not unavailable. There are some toggle screen buttons that are light blue when active and dark blue when inactive.