GM Service Manual Online
For 1990-2009 cars only

Read this manual thoroughly to become familiar with how the navigation system operates.

Keeping your eyes on the road and your mind on the drive is important for safe driving. The navigation system has built-in features intended to help do this. Some features may be disabled while driving. Note that these functions are grayed-out. A grayed-out function indicates it is not available when the vehicle is moving.

All functions are available when the vehicle is parked. Do the following before driving:

    • Become familiar with the navigation system operation, hard keys on the faceplate, and touch-sensitive screen buttons of the navigation system.
    • Set up the audio by presetting favorite stations, setting the tone, and adjusting the speakers.
    • Set up the navigation features before beginning driving, such as entering an address or a preset destination.
    • Set up your phone numbers in advance so they can be called easily with the press of a single button or a single voice command (for navigation systems equipped with phone capability).

Caution: Taking your eyes off the road too long or too often while using the navigation system could cause a crash resulting in injury or death to you or others. Focus your attention on driving.

Caution: Avoid looking too long or too often at the moving map on the navigation screen. This could cause a crash and you or others can be injured or killed. Use the turn-by-turn voice guidance directions whenever possible.

Use the navigation system to:

    • Plan a route.
    • Select a destination using various methods and choices.
    • Follow turn-by-turn route and map guidance with voice prompts, only if permitted by traffic laws, controls, and conditions.
    • Receive RDS broadcast announcements.

Always be alert and obey traffic and roadway laws and instructions, regardless of the guidance from the navigation system. Because the navigation system uses street map information that does not include all traffic restrictions or the latest road changes, it may suggest using a road that is now closed for construction or a turn that is prohibited by signs at the intersection. Because the system uses limited information, always evaluate whether following the system's directions is safe and legal for the current conditions.

When the navigation system is turned on, a screen may appear with the information below, and you must read and acknowledge the information it contains.

Caution: Taking your eyes off the road for extended periods could cause a crash resulting in injury or death to you or others.

To help avoid a crash in which you or others could be killed:

    • Always concentrate on your driving first by keeping your eyes and mind on the road, and your hands on the wheel.
    • Follow system directions only if permitted by traffic laws, controls, and conditions.
    • Before using this system, read the owner manual and learn how it operates.
    • Some system controls cannot be used the when vehicle is moving.

After acknowledging the start up information you will be able to access the NAV (navigation) and DEST (destination) functions. Once accessed, enter or delete information in the navigation system or access other functions. See instructions later in this section.


Object Number: 2015271  Size: B3

Each time the vehicle is started and the navigation system is turned on, the Caution screen appears. If the Caution screen appears, touch OK to accept the Caution. If OK is not selected, all hard keys except for NAV (navigation) and DEST (destination) can be accessed. Once the NAV or DEST hard keys are pressed, this Caution screen appears and OK must be pressed to access the navigation map.

When getting started the navigation system can be set to preferences or information that has been entered can be deleted using various options.

Language -- English/Metric

To change the language of the navigation screens, see "DIC Vehicle Customization" in the Index of the vehicle's owner manual.

To change the navigation screens from English or metric, see "DIC Operation and Displays" in the Index of the vehicle's owner manual.

Deleting Personal Information

This navigation system can record and store destinations and personal information such as names and addresses. When disposing of the vehicle, you may want to delete this information. See "Previous Destinations -- Deleting" and "Address Book -- Editing and Deleting Entries" under Destination for deleting this information.

Storing Radio Station Presets

Up to 36 preset stations can be stored. AM, FM, and XM (if equipped) can be mixed. To store presets:

  1. Press the (power) knob to turn the system on.
  2. If viewing a map screen, touch the source screen button, press the AUDIO key, or press the FAV (favorite) key.
  3. Select the band.
  4. Seek or tune to the desired station, to select the station.
  5. Press and hold one of the preset screen buttons for more than one and a half seconds.
  6. Repeat the steps for each preset.

To change the number of preset pages, see "Number of Preset Pages" under "Radio Menu" under Navigation Audio System for more information.

Entering an Address and Point of Interest, and Storing Preset Destinations

The vehicle must be in P (Park) to perform these operations.

Entering an Address

If having trouble finding a city or a street name:

    • Enter the street name first instead of the city name, or vice versa.
    • Enter more characters or reduce the amount of characters to reduce or expand the available options.

To set a destination by entering a street name:

  1. Press the to turn the system on.
  2. A caution may appear. Touch the OK screen button to proceed.
  3. Press the DEST hard key.
  4. Select the Street screen button.
  5. The Street name category is automatically selected for entry. Start entering the street name.
  6. It is recommended that directional information or street type is not entered, and use the Space screen button between street or city names. For example, the street name N. Royal Oak Rd. should be entered as royal(Space screen button)oak. Use the backspace ( ) screen button if an incorrect character has been entered.

    If four or less names are available for the entered characters, a list displays. If more than four are available, there is a match counter with a number in it, it represents the number of available streets. Select the List button to view the list and select a street.

    While the Street name category is empty, there is a Last 5 Streets screen button that displays the last five selected streets. Press this button to select a street from the list.

  7. Enter the house number. The system displays the house number range that is available for the street.
  8. If there is more than one city, the list of cities that have that street name and house number displays. Select a city from the list.
  9. A confirmation screen displays with the address. If the address is correct, select the Go screen button. The system calculates the route.
  10. Select the route preference (Fastest, Shortest, or Easy). The system highlights the route.
  11. Select the Start Guidance screen button. The route is now ready to be started.

See "Address Entry" under Destination for more information.

Entering a Point of Interest (POI)

To set a destination by entering a Point of Interest (POI):

  1. Press the to turn the system on.
  2. A caution may appear. Touch the OK screen button to proceed.
  3. Press the DEST hard key.
  4. Press the Point of Interest screen button.
  5. Enter the specific title of the POI in the POI name space (i.e. Washington Monument).
  6. If four or less names are available, a list displays. If more than four are available, there is a match counter with a number in it, it represents the number of available POI names. Select the List button to view the list. Select the POI.

  7. Select the Go screen button. The system calculates the route.
  8. Select the route preference (Fastest, Shortest, or Easy). The system highlights the route.
  9. Select the Start Guidance screen button. The route is now ready to be started.

See "Point of Interest (POI)" under Destination for more information.

Storing Preset Destinations

  1. Press the to turn the system on.
  2. A caution may appear. Touch the OK screen button to proceed.
  3. Press the NAV or DEST hard key.
  4. Enter a destination. See Destination for information on how to enter a destination.
  5. Press the Add screen button from the map screen to add the current final destination to the address book.
  6. The address book screen appears.

  7. Select the Name screen button. An alpha-keyboard displays. Enter the name.
  8. Press and hold one of the screen buttons at the bottom of the screen until the text in the button changes.
  9. The address book entry name appears in that preset destination screen button and is now available to select from the Select Destination screen. See "Using Your Stored Preset Destinations" next in this section to select it as a destination.

    See "Adding or Changing Preset Destinations" under Destination for more information on how to add preset destinations.

Using Your Stored Preset Destinations

These destinations are available for selection while driving.

  1. Press the to turn the system on.
  2. A caution may appear. Touch the OK screen button to proceed.
  3. Press the DEST hard key.
  4. Select one of the available preset destination screen buttons. The system calculates the route.
  5. Select the route preference (Fastest, Shortest, or Easy). The system highlights the route.
  6. Select the Start Guidance screen button. The route is now ready to be started.

See "Preset Destination" under Destination for more information.

Canceling Guidance

Guidance is canceled once you arrive at your final destination. To cancel guidance prior to arrival at the final destination:

  1. Press the DEST hard key.
  2. Press the Cancel Guidance screen button.
  3. Press the Yes screen button to confirm cancellation.

Voice Guidance

To adjust the volume of voice guidance prompts:

  1. Press the CONFIG hard key to enter the menu options, then press the CONFIG key repeatedly until Nav is selected or touch the Nav screen button.
  2. Press the Voice Volume screen button.
  3. Press the + (plus) or - (minus) screen buttons to increase or to decrease the volume of the voice prompts.

See "Voice Volume " under Configure Menu for more information.