GM Service Manual Online
For 1990-2009 cars only

This section presents basic information you will need to know to operate the navigation system.

The main navigation menu displays a number of options which offer information on a variety of topics. See Navigation Menu for more information.

Use the keys located on each side of the navigation screen and the joystick located on the bottom left corner of the navigation system, to operate the system. See Navigation System Overview for more information on location.

Use the joystick to make selections in the system. Move the joystick left, right, up, down, or diagonally on the screen. Press the center of the joystick to enter a selection.

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

Hard Keys

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

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

TA (Traffic Interrupt): Press the TA key to seek to the next radio station capable of broadcasting traffic announcements. See "Radio Data Systems (RDS)" under Navigation Audio System .

NAV (Navigation): If you are in a menu and are not on the map screen, press the NAV key to view the current map showing vehicle position. If a route has not been planned, pressing this key will display the map screen and the following information:

    • North or Heading up symbol
    • Time
    • Map scale

If a route has been planned, pressing this key will display the map screen and the following information:

    • Number of miles/kilometers between current vehicle position and the destination
    • Estimated travel time to the destination
    • Highlighted route or turn-by-turn instructions

You will find out more information on each feature found on a map screen later in this manual.

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

BAND: Press the BAND key to access the BAND screen and switch between AM, FM1, and FM2. See "Finding a Station" under Navigation Audio System .

CD: Press the CD key to play a CD. The CD screen will be displayed. See "Playing a Single CD" under Navigation Audio System .

Press the audio key to access the Audio menu. See "Audio Screen" under Navigation Audio System .

SETUP: Press the SETUP key to access the Setup menu. See Setup Menu .

The system also has the following reconfigurable soft keys located to the right of the navigation screen. They have hard key labels for easier understanding while in navigation mode. The six keys can change functions for different modes of the system.

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

DEST (Destination): Press the DEST key to access the Destination menu. See Destination .

MENU: Press the MENU key to display the main navigation menu. See Navigation Menu .

(Zoom In): Press the zoom in key to get a closer look at a smaller section of the map you are traveling on.

(Zoom Out): Press the zoom out key to see a larger scale of the map you are traveling on. You can also view your highlighted route.

BACK: Press the BACK key to return to the previous screen.

Alpha-Numeric Keypad

Letters of the alphabet, symbols, punctuation, and numbers, when available to you, will be displayed on the navigation screen as an alpha or numeric keypad. The appropriate keypad will automatically be displayed whenever the system needs information from you. The alpha keypad will be displayed when the system needs you to input a street or city name. The numeric keypad will be displayed when the system needs you to input a phone number or house address.

To select a character, use the joystick to move across the keypad and press the center of the joystick to select it.

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

Select the backspace symbol if you have selected an incorrect character.

To make your name selections easier, the system will only allow you to select a character which can follow the last one entered. For example, if you enter Z, you would not be allowed to follow it with T. The system will highlight the available characters and darken the unavailable characters.

If you are unsuccessful when inputting a name, it may need to be selected differently. It is 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.