GM Service Manual Online
For 1990-2009 cars only

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

Use the hard keys located on the navigation system along with the available touch screen buttons on the navigation screen to operate the system. See Navigation System Overview for more information.

Once the vehicle is moving, various functions are disabled to reduce driver distractions.

Hard Keys

The following hard keys are located on the navigation system:

(Map DVD Eject): Press this key located next to the map DVD loading slot to eject the map DVD. The map DVD slot is the slot directly below the display screen.

(Load): Press the CD/DVD changer loading key to go to the loading screen and begin loading DVDs or CDs. See Six-Disc CD/DVD Changer for more information.

(CD/DVD Eject): Press the eject key next to the CD/DVD changer loading slot to begin ejecting DVDs or CDs. See Six-Disc CD/DVD Changer for more information.

(Power/Volume): Press to turn the audio system on and off. Turn the knob to increase or decrease the volume to the audio system.

(Tilt): Press the up arrow on the tilt key to tilt the navigation screen forward. Press the down arrow on the tilt key to tilt the screen rearward. There are three tilt positions to choose from.

BAND: Press to access the audio source screen. The press the BAND key to toggle among the bands available, FM, AM, XM (if equipped), and WX (weather). See Navigation Audio System.

SRCE (Source): Press to switch between the audio sources. Pressing this key will switch between the radio and the CD/DVD player. See Navigation Audio System.

AUX (Auxiliary): Press to access screens from which you will operate Bluetooth®, OnStar®, or control video input. See Bluetooth® Phone , OnStar® System , and Auxiliary Devices for more information.

(Audio): Press to access the Audio Adjust screen, to adjust bass, midrange, fade, balance, and DSP (Digital Signal Processing) settings. See Navigation Audio System.

ROUTE: Press to access the Destination Entry screen or the search area and begin planning a destination. See Destination.

CONFIG (Configure): Press to access the SETTING Function screen. See Configure Menu.

(Map): Press to access the map screen.

(Navigation Repeat): Press to repeat the last voice guidance prompt, while on a planned route.

(Seek/Scan): Press the seek/scan arrows to go to the next or previous radio station, or press and hold to scan stations. See Navigation Audio System.

(Tune) Knob: Turn to change frequencies. See Navigation Audio System.

Alpha-Numeric Keypad

Letters of the alphabet, symbols, punctuation, and numbers display on the navigation screen as an alpha or numeric keypad. The alpha keypad displays when the system needs input of a city or street name.

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

Sym. (Symbol): Touch to access the numeric keypad, punctuation marks, and other characters. There are two pages available. Use the right and left arrow screen buttons to view the pages.

A - Z (Alphabet): Touch to display to the alpha keypad.

Others: Touch to display special characters. There are two pages of characters available. Use the right and left arrow screen buttons to view the pages.

(Space): Touch to enter a space between characters or the words of a name.

(Back space): Touch if an incorrect character has been selected.

To make name selections easier, the system only allows selection of a character which can follow the last one entered. For example, if a Z is entered, a T is not available to select. The system highlights the available characters.

If a name is not available after input, it may need to be entered differently, 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 Screen Buttons

Touch-sensitive screen buttons are located on the screen. When a screen button has been selected, a beep sounds. These buttons are highlighted when a feature is available. There are also some toggle screen buttons that are light blue when active and dark blue when inactive.