GM Service Manual Online
For 1990-2009 cars only

This section has basic information on how 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, some functions are disabled to reduce driver distractions.

Hard Keys

The following hard keys are located on the navigation system:

(Open/Close Faceplate): Press this key located at the bottom of the Navigation Screen to open or close the faceplate.

(Eject CD): Press the eject CD key next to the CD loading slot to eject CDs. See CD Player for more information.

DVD (Eject Map Database DVD): Press the eject DVD key next to the DVD loading slot to eject the map DVD. See "Installing the Map DVD" under Maps for more information.

Power/Volume Knob: Press to turn the audio and navigation systems on and off. Turn to increase or decrease the volume to the audio system.

(Voice Recognition): Press to activate the voice recognition system. See Voice Recognition for more information.

NAV (Navigation): Press to access the map screen. If this key is pressed when a map screen is displayed and while in route guidance, the system repeats the last voice command.

SRCE (Source): Press to access the audio source screen. See Navigation Audio System.

/ (Audio/Screen Adjust): Press to access the Audio Adjust and Screen Adjust screens. See Navigation Audio System.

SEEK (Seek/Tune): Press the arrows to go to the next or previous radio station and stay there, or to tune in a station. See Navigation Audio System.

Alpha-Numeric Keypad

Letters of the alphabet, symbols, punctuation, and numbers are displayed on the navigation screen as an alpha or numeric keypad. The alpha keypad displays when a city or street name needs to be entered. Touch the Sym. (symbol) screen button at the bottom of the alpha keypad to access the numeric keypad 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.

(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 lets you select a character which can follow the last one entered. For example, if a Z is entered, a T is not be available to select. The system highlights the available characters.

If a name does not display after it is entered, 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 Buttons

Touch-sensitive 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 in color when active.