GM Service Manual Online
For 1990-2009 cars only

Notice: Before adding any sound equipment to the vehicle, such as an audio system, CD player, CB radio, mobile telephone, or two-way radio, make sure that it can be added by checking with your dealer/retailer. Also, check federal rules covering mobile radio and telephone units. If sound equipment can be added, it is very important to do it properly. Added sound equipment can interfere with the operation of the vehicle's engine, radio, or other systems, and even damage them. The vehicle's systems can interfere with the operation of sound equipment that has been added.

Notice: The chime signals related to safety belts, parking brake, and other functions of the vehicle operate through the navigation system. If that equipment is replaced or additional equipment is added to the vehicle, the chimes may not work. Make sure that replacement or additional equipment is compatible with the vehicle before installing it. See "Accessories and Modifications" in the Index of the vehicle's owner manual.

The audio system has been designed to operate easily and to give years of listening pleasure. You will get the most enjoyment out of it if you acquaint yourself with it first. Find out what your audio system can do and how to operate all its features to be sure you are getting the most out of the advanced engineering that went into it.

The ignition must be in a position other than OFF or Retained Accessory Power (RAP) must be active for your audio system to work. See "Retained Accessory Power (RAP)" in the Index of your vehicle's owner manual for more information.

The audio system is operated using menus located on the Navigation System screen. The audio menus are explained in this section.

Radio Screen

To access the Radio screen, press the BAND key or choose Radio from the Main Menu. See Main Menu for more information.


Object Number: 1221534  Size: B3

The Radio screen will have preset stations listed vertically at the right side of the screen, and the currently selected station frequency will appear in the center of the screen. At the top of the screen the Driver Information Center (DIC) status line will appear. See Driver Information Center (DIC) for more information. Directly below the DIC information, you will see the banner with Radio and the currently selected band. For example, Radio FM1 means that the presets for FM1 are displayed at the right of the screen. You will also see Autostore, Home, or Away. This will tell you which set of presets are displayed. See "FM Menu" following in this section and Screen Features for more information.

Near the bottom left of the screen, you will see six horizontal lines. This is for the six-disc CD changer. To the right of the CD changer information is the equalizer, Digital Signal Processing (DSP) and Automatic Volume Compensation (AVC) information. See "Setting the Tone" later in this section or CD/DVD Player for more information.

AM Menu

This menu allows you to customize the AM presets.

To access the AM Menu you must be in the Radio screen with the AM band active. Pressing the TUNE/SEL knob will bring up the AM Menu. The following reconfigurable keys are available:

    • Home P-Sets
    • Away P-Sets
    • Autostore
    • Back

For a description of each item, see "FM Menu" following.

FM Menu

This menu lets you customize the FM and RDS presets. To access the FM Menu, you must be on the Radio screen and the FM1 or FM2 band must be active. Press the TUNE/SEL knob once. The following menu will appear:

    • Help Prompt
    • RDS List
    • Seek RDS List
    • Region
    • Alt Frequency
    • Display RDS Messages
    • Intrpt Volume
    • Display Freq

The following reconfigurable keys will also be available:

    • Select
    • Home P-Sets
    • Away P-Sets
    • Autostore
    • Back
Help Prompt: This menu item displays system help information at the bottom center of the screen if you are currently in a submenu. If you are not in a submenu, navigation system route information is displayed. Press the TUNE/SEL knob to switch back and forth between on and off. When this feature is turned on, an X will appear in the box to the left.

RDS (Radio Data Systems) List: This menu item lets you choose the type of radio station programs you listen to by category rather than frequency. Press the TUNE/SEL knob once to access the RDS list.

To select a category, scroll to the menu item by turning the TUNE/SEL knob then press the knob once. When the category is selected, an X will appear in the box to the left. To seek to a station using the selected menu items, see "Seek RDS List" following. For more information on RDS, see "Radio Data Systems (RDS)" under "Audio Systems" in your vehicle's owner manual.

Seek RDS List: To seek to the selected categories on the RDS list, press the TUNE/SEL knob once when Seek RDS List is highlighted. The radio will immediately begin seeking to an available radio station that matches the categories selected.

Region: This menu item allows you to turn the Region feature on and off. Press the TUNE/SEL knob to switch back and forth between on and off. When this feature is turned on, an X will appear in the box.

Alt (Alternate) Frequency: This menu item allows the radio to automatically switch to a stronger station with the same programming. Press the TUNE/SEL knob to switch back and forth between on and off. When this feature is turned on, an X will appear in the box.

Display RDS Messages: This menu item allows you to see RDS messages broadcast by the currently selected radio station. Press the TUNE/SEL knob to switch back and forth between on and off. When this feature is turned on, an X will appear in the box. For XM™, if equipped, this item will read Show Msg (message). Use the TUNE/SEL knob to turn this feature on and off. If the feature is on, messages will automatically display. If it is off, a Message Available icon will display when a message has been received. When turned on, any RDS messages broadcast will appear in the bottom center of the screen. If no message is available, this area will be blank. RDS messages only appear on the Radio screen. See "Radio Data Systems (RDS)" in your vehicle's owner manual for more information. The RDS message feature is available for the FM bands and for RDS radio stations only. RDS messages will only appear if the Message feature is turned on.

Intrpt (Interrupt) Volume: This menu item allows you to set the volume level of the traffic announcements you receive from the system. To change the current volume level, do the following:

  1. Press the TUNE/SEL knob once to access the adjustment bar graph.
  2. Turn the knob to increase or decrease the volume level.
  3. Once you reach the volume level you want, press the knob once to set your selection.
Display Freq (Frequency): This menu item allows you to display the frequency of the currently selected RDS radio station under the station name. Press the TUNE/SEL knob to switch back and forth between on and off. When this feature is on, an X will appear in the box.

Select: Press this reconfigurable key to choose a highlighted menu item from the FM Menu.

Home Presets: This reconfigurable key allows you to display your home, or local, radio station presets. Press the reconfigurable key next to Home P-Sets, and the preset stations at the right of the screen will change to your local presets. Home will appear on the screen near the current station frequency. To store preset radio stations, see "Setting Preset Stations" later in this section.

Away Presets: This reconfigurable key allows you to display the preset radio stations for when you are traveling out of town. Press the reconfigurable key next to Away P-Sets, and the preset stations at the right of the screen will change to the preset stations stored for when you travel. Away will appear on the screen near the current station frequency. To store preset radio stations, see "Setting Preset Stations" later in this section.

Autostore: This reconfigurable key allows you to store the six radio stations with the strongest signals as presets. Press the reconfigurable key next to Autostore to activate this feature. The preset prompts at the right of the screen will update once Autostore is finished.

Back: This reconfigurable key returns you to the main Radio screen.

XM™ Menu

When XM™ is active, the channel name and number, song title, artist, and category will be displayed on the screen.

To access the XM™ Menu you must be in the Radio screen with the XM1 or XM2 band active. Pressing the TUNE/SEL knob will bring up the XM™ Menu.


Object Number: 1221535  Size: B3

This menu allows you to seek or scan for stations based on their category. While in this menu you can turn the TUNE/SEL knob to scroll through the categories and press it to select the category you want to seek to. Use the SEEK/SCAN arrows or press the TUNE/SEL knob to seek to the first available channel in the selected category.

XM™ Radio Satellite Service

XM™ is a satellite radio service that is based in the 48 contiguous United States and Canada. XM™ offers a large variety of coast-to-coast channels including music, news, sports, talk, traffic/weather (U.S. subscribers), and children’s programming. XM™ provides digital quality audio and text information that includes the channel name and number, song title, and artist name. A service fee is required in order to receive the XM™ service. For more information, contact XM™; In the U.S. at www.xmradio.com or call 1-800-852-XMXM (9696) or in Canada at www.xmradio.ca or call 1-877-GET-XMSR (438-9677).

Playing the Radio

BAND: Press the BAND key once to access the audio system. You can also access the audio system from the Navigation Main Menu. See Main Menu .

PWR/VOL (Power/Volume): Press this knob to turn the Navigation System on and off. Turn the knob to increase or decrease the volume level. You can also adjust the volume level using the steering wheel controls, if equipped. See "Audio Steering Wheel Controls" in the Index of your vehicle's owner manual for more information.

Finding a Station

BAND: After you access the main radio display, press this button repeatedly to scroll through the bands: AM, FM1, FM2, XM1 and XM2, if equipped. The one currently selected is shown near the top of the display.

TUNE/SEL (Select): Use this knob to manually tune the radio, access the radio menus, and scroll through the menu items. See "FM Menu" listed previously in this section for more information on the menu items.

SEEK/SCAN : Press the left or right arrow to go to the previous or next station and stay there. The volume will mute while seeking. To scan stations, press and hold the left or right arrow for two seconds until you hear a beep. The radio will go to the next or previous station, play for a few seconds, then go on to the next station. The volume will mute while scanning. Press either arrow again to stop scanning. To scan preset radio stations, press and hold the right arrow for more than four seconds. You will hear two beeps and Preset Scan will appear on the screen. The radio will go to the first preset station stored, play for a few seconds, then go on to the next preset station. The volume will mute while scanning. Press the left or right arrow again to stop scanning presets. See "Setting Preset Stations" later in this section for more information. The radio will seek or scan stations with a strong signal only.

Setting the Tone


Object Number: 1221536  Size: B3

To manually adjust the tone, do the following:

  1. Press the AUDIO button to access the Audio screen.
  2. Press the TUNE/SEL knob repeatedly to advance to the feature you wish to adjust.
  3. Turn the TUNE/SEL knob to adjust the level. Once you find the level you want, press the knob once to set it.
Balance: This will adjust the balance between the left and the right speakers.

Fade: This will adjust the fade between the front and the rear speakers.

Bass: This will increase or decrease the bass.

Mid (Midrange): This will increase or decrease the midrange.

Treble: This will increase or decrease treble. If a station is weak or noisy, decrease the treble.

EQ 1-3 (Equalizer): Once you adjust the bass, midrange and treble, you can save them for future use. You may store up to three customized equalizations. To store equalizations, do the following:

  1. Manually set the levels for bass, midrange, and treble.
  2. Press and hold one of the three equalization buttons.
  3. You will hear a beep once the equalization is stored successfully.

Equalization settings are unique to each source, and they must be set individually for each source. For example, if you select EQ1 for the CD changer and then switch to a preset radio station, the equalization may not be the same.

You can save an equalization setting for each stored preset radio station. See "Setting Preset Stations" later in this section for more information.

DSP (Digital Signal Processing): This feature is only available on the Bose® system. This feature is used to provide a choice of five different listening experiences. DSP can be used while listening to the radio or the CD players.

    • Normal: This setting provides the best overall audio performance for all passengers.
    • Talk: This setting is used when listening to non-musical material such as news, talk shows, and sports broadcasts. Talk makes spoken words sound very clear.
    • Driver Seat: This setting adjusts the audio to give the driver the best possible sound qualities.
    • Rear Seat: This setting adjusts the audio to give the rear seat passengers the best possible sound qualities.
    • Spacious: This setting is used to make the listening area seem larger.

To change the current DSP settings, do the following:

  1. Press DSP reconfigurable key to turn DSP on and to access the DSP choices.
  2. Continue to press the DSP reconfigurable key until the desired DSP mode is selected.
  3. Press the Back reconfigurable key to exit the DSP menu.
  4. Your choice will display on the DSP prompt at the right of the screen.

The DSP settings are unique to each source, and they must be set individually for each source. For example, you may have Talk selected for a preset radio station, but if you change to the CD changer, Spacious may be selected.

You can also store separate DSP settings for each preset station. See "Setting Preset Stations" later in this section or CD/DVD Player for more information.

AVC (Automatic Volume Compensation): If your vehicle has Bose AudioPilot® noise compensation technology, AudioPilot® monitors the level of noise in the vehicle and automatically increases or decreases the level of the audio to keep it audible above the noise. To turn this feature on and off, press the AVC reconfigurable key. This feature is most effective at lower volume settings where background noise can affect how well you hear the music being played through your vehicle's audio system. At higher volume settings, where the audio is much louder than the noise, there may be little or no adjustments by AudioPilot®. For additional information on AudioPilot®, please visit www.bose.com.

Setting Preset Stations

The six reconfigurable keys next to the display allow you to store your favorite radio stations. You can set up to 30 different preset stations, six per band; AM, FM1, FM2, XM1, and XM2, if equipped. The Home and Away presets each have 30 separate presets. For more information on the Home and Away feature, see "FM Menu" listed previously in this section.

To store a radio station as a preset, use the following steps:

  1. Select the band where you want the preset stored by pressing the BAND button.
  2. Select either the Home or Away presets. See "FM Menu" listed previously in the section for more information on the Home and Away feature.
  3. Tune to the desired station using the TUNE/SEL knob or the SEEK/SCAN arrows.
  4. Choose the equalization and DSP settings.
  5. See "Setting the Tone" listed previously for more information.

  6. Press and hold the reconfigurable key next to the preset prompt you want.
  7. You will hear a beep when the preset has been stored, and the frequency of the stored station will appear on the preset prompt.

  8. Repeat the steps to store each preset.

To select a stored preset station, press the reconfigurable key next to the station prompt.

XM™ Radio Messages

Radio Display Message

Condition

Action Required

XL (Explicit Language Channels)

XL on the radio display, after the channel name, indicates content with explicit language.

These channels, or any others, can be blocked at a customer's request, by calling 1-800-852-XMXM (9696).

XM Updating

Updating encryption code

The encryption code in the receiver is being updated, and no action is required. This process should take no longer than 30 seconds.

No XM signal

Loss of signal

The system is functioning correctly, but the vehicle is in a location that is blocking the XM™ signal. When you move into an open area, the signal should return.

Loading XM

Acquiring channel audio (after 4 second delay)

The audio system is acquiring and processing audio and text data. No action is needed. This message should disappear shortly.

Channel Off Air

Channel not in service

This channel is not currently in service. Tune in to another channel.

Channel Unavail

Channel no longer available

This previously assigned channel is no longer assigned. Tune to another station. If this station was one of the presets, choose another station for that preset button.

No Artist Info

Artist Name/Feature not available

No artist information is available at this time on this channel. The system is working properly.

No Title Info

Song/Program Title not available

No song title information is available at this time on this channel. The system is working properly.

No CAT Info

Category Name not available

No category information is available at this time on this channel. The system is working properly.

Not Found

No channel available for the chosen category

There are no channels available for the selected category. The system is working properly.

No Information

No Text/Informational message available

No text or informational messages are available at this time on this channel. The system is working properly.

XM Theftlocked

Theft lock active

The XM™ receiver in the vehicle may have previously been in another vehicle. For security purposes, XM™ receivers cannot be swapped between vehicles. If this message is received after having your vehicle serviced, check with your GM dealer.

XM Radio ID

Radio ID label (channel 0)

If tuned to channel 0, this message will alternate with the XM™ Radio 8 digit radio ID label. This label is needed to activate the service.

Unknown

Radio ID not known (should only be if hardware failure)

If this message is received when tuned to channel 0, there may be a receiver fault. Consult with your GM dealer.

Check XM Receiver

Hardware failure

If this message does not clear within a short period of time, the receiver may have a fault. Consult with your GM dealer.

XM NavTraffic™ (USA Only)

Your vehicle's navigation system may have an XM NavTraffic™ receiver. XM NavTraffic™ is a subscription service provided via XM™ Satellite Radio. XM NavTraffic™ provides real-time traffic information fully integrated to the navigation system to display current traffic conditions for a driver’s chosen route. XM NavTraffic™ allows drivers to make the most informed, timesaving routing decisions.

XM NavTraffic™ is powered by NAVTEQ Traffic™ data which provides aggregate, quality tested information from the leading commercial and public traffic data providers including government departments of transportation, police, and emergency services, road sensors, cameras, and airborne reports. Three types of traffic information for major roadways are displayed on the navigation system:

    • Unscheduled traffic incident data, such as accidents and disabled vehicles
    • Scheduled traffic incident data, such as road construction and road closures
    • Traffic flow information (rate of speed data)

Traffic information is delivered to the vehicle by the XM™ Radio satellites. XM NavTraffic™ makes it possible for the navigation system to provide continuously updated traffic information personalized for a driver’s needs.

XM NavTraffic™ currently broadcasts the traffic information for 20 markets nationally: Atlanta, GA, Baltimore*, MD, Boston, MA, Chicago, IL, Dallas/Ft Worth*, TX, Detroit, MI, Houston, TX, Los Angeles, CA, Miami-Ft. Lauderdale*, FL, Minneapolis-St. Paul, MN, New York City, NY, Orlando, FL, Philadelphia, PA, Phoenix, AZ, Pittsburgh, PA, San Diego, CA, San Francisco/Oakland, CA, San Jose, CA, Seattle, WA, St. Louis*, MO, Tampa, FL, and Washington, D.C. The service may be available in more cities in the future. Visit www.xmnavtraffic.com for more details on local coverage.

A service fee is required in order to receive the XM NavTraffic™ service.

*Flow data not currently reported in these markets.

Turning XM NavTraffic™ On and Off

To turn traffic on or off:

  1. When viewing a map screen, press the TUNE/SEL knob, or if not viewing a map screen, press the NAV hard key, then press the TUNE/SEL knob.
  2. Turn the knob to Traffic Setup.
  3. Press the TUNE/SEL knob.
  4. Turn the knob to Enable Traffic.

  5. Object Number: 1556697  Size: B3
  6. Press the TUNE/SEL knob to select it. An X will appear when it is selected.
  7. Selecting Approaching Event Alert will also enable the system to show a pop-up screen of the next approaching traffic condition. If currently driving using a planned route, the pop-up screen will appear on the display when this has been selected.

When traffic is enabled, a TRF icon will appear at the top left corner of the display. The TRF icon is color coded, as follows:

    • Green indicates that the system is working and the traffic condition is far away.
    • Yellow indicates that a minor traffic condition is approaching.
    • Gray indicates that there is currently no traffic data being received by the system.

Traffic flow conditions will appear on the route, as follows:

    • Green indicates free traffic flow.
    • Yellow indicates a congestion.
    • Red indicates heavy or stopped traffic.

Locations and Information of Traffic Conditions

The system may take some time to sort the information. If you are currently driving on a planned route, the system will show traffic conditions, for approximately 62 miles (100 km) with a maximum of 250 traffic conditions. If you are not traveling on a planned route, the system will show traffic conditions for approximately 31 miles (150 km), with a maximum of 250 traffic conditions. The list of conditions will appear in order, from closest to furthest distance, from the vehicles current location.

To view the traffic condition location and information on the map:

  1. Press the TRAF hard key.

  2. Object Number: 1556695  Size: B3
  3. Turn the TUNE/SEL knob to highlight the traffic condition.
  4. Press the TUNE/SEL knob to select the highlighted traffic condition.
  5. If traveling on a planned route; a red square will appear around the traffic condition symbol, the street name of the traffic condition location, the distance from your vehicles current location to the traffic condition, and the distance of the traffic condition will appear on the display.

    If not traveling on a planned route; a red square will appear around the traffic condition symbol and the street name of the traffic condition location will appear on the display.


    Object Number: 1556696  Size: B3
  6. Turn the TUNE/SEL knob to receive the information for the next traffic condition.

Scrolling Map


Object Number: 1556698  Size: B3

While scrolling the map, traffic condition icons may appear. To receive information about the traffic condition, place the cross hairs over the traffic condition icon. The type of traffic condition, the average speed, and the street name of the traffic condition will appear on the display. See "Map Scroll" under Navigation Menu for more information.

Approaching Event Alert

Selecting Approaching Event Alert will enable the system to show a pop-up screen of the next approaching traffic condition, when driving using a planned route.

To turn this feature on:

  1. When viewing a map screen, press the TUNE/SEL knob, or if not viewing a map screen, press the NAV hard key, then press the TUNE/SEL knob.
  2. Turn the knob to Traffic Setup.
  3. Press the TUNE/SEL knob.
  4. Turn the knob to Approaching Event Alert.
  5. Press the TUNE/SEL knob to select it. An X will appear when it is selected.

Object Number: 1556708  Size: B3

When driving on a planned route a pop-up display will appear of the next approaching traffic condition. The display will let you know; in how many miles (kilometers) the event will occur, how long in miles (kilometers) the event will last, what the event is, and which road the event is on. The display will last for approximately 30 seconds.

Alternate Route


Object Number: 829835  Size: A1

The alternate route key is available at two separate instances.

    • When the pop-up display appears on the screen when approaching a traffic condition, you can select an alternate route, to detour around the traffic condition. Press the alternate route key and the system will automatically calculate a new route. XM NavTraffic™ information may not be provided for the alternate route, depending on what type of road the system will have you traveling on.

Object Number: 1556702  Size: B3
    • When traveling on a planned route, the alternate route key is always available. Press the alternate route key and a list will appear. Select TRF Detour to be re-routed around the approaching traffic condition(s), select from the list of miles (kilometers). This option will re-route the route that many miles (kilometers) off of the current planned route, or select Back to go back to the last route the system calculated. XM NavTraffic™ information may not be provided for the alternate route, depending on what type of road the system will have you traveling on.
        To select from the list:
        1. Turn the TUNE/SEL knob until the desired option is highlighted.
        2. Press the TUNE/SEL knob to select the highlighted option.

Traffic Condition Symbols

The following are traffic condition symbols that can appear on the display:


Object Number: 1550998  Size: A1

Stopped traffic.


Object Number: 1550999  Size: A1

Traffic jam.


Object Number: 1551002  Size: A1

Accident.


Object Number: 1551004  Size: A1

Road closed.


Object Number: 1551007  Size: A1

Lane Narrows.


Object Number: 1551012  Size: A1

Road work. Construction.


Object Number: 1551013  Size: A1

Alert.


Object Number: 1551016  Size: A1

Road condition.


Object Number: 1551017  Size: A1

Road visibility.


Object Number: 1551018  Size: A1

Other.