GM Service Manual Online
For 1990-2009 cars only

United States shown, Canada similar


Object Number: 1218642  Size: B3

If your vehicle has the Monsoon audio system, included are eight speakers and an eight channel amplifier. The radio displays MONSOON when the radio or the ignition is turned on. See your dealer for details.

Radio Data System (RDS)

The audio system has a Radio Data System (RDS). RDS features are available for use only on FM stations that broadcast RDS information.

With RDS, the radio can do the following:

    • Seek to stations broadcasting the selected type of programming
    • Receive announcements concerning local and national emergencies
    • Display messages from radio stations
    • Seek to stations with traffic announcements

This system relies upon receiving specific information from these stations and only works when the information is available. In rare cases, a radio station can broadcast incorrect information that causes the radio features to work improperly. If this happens, contact the radio station.

While the radio is tuned to an RDS station, the station name or call letters display instead of the frequency. RDS stations can also provide the time of day, a program type (PTY) for current programming, and the name of the program being broadcast.

XM™ Satellite Radio 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 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

(Power): Press the knob to turn the system on and off.

(Volume): Turn the knob to clockwise or counterclockwise increase or to decrease the volume.

DISP (Display): Press this knob to switch the display between time and temperature or radio station frequency and temperature. When the ignition is off, press this knob to display the time. For RDS, press the DISP knob to change what displays while using RDS. The display options are station name, RDS station frequency, PTY, and the name of the program (if available). For XM™ (if equipped), press the DISP knob while in XM mode to retrieve four different categories of information related to the current song or channel: Artist, Song Title, Category or PTY, Channel Number/Channel Name. To change the default on the display, press the DISP knob until you see the desired display, then hold the knob for two seconds. A beep sounds and the selected display is now the default.

AUTO (Automatic Volume): With automatic volume, the audio system adjusts automatically to make up for road and wind noise as you drive. Set the volume at the desired level. Press the AUTO button to select LOW, MEDIUM, or HIGH. AUTO VOL LOW, AUTO VOL MEDIUM, or AUTO VOL HIGH displays. Each higher setting allows for more volume compensation at faster vehicle speeds. Then as you drive, automatic volume increases the volume, as necessary, to overcome noise at any speed. The volume level should always sound the same to you as you drive. AUTO VOL NONE displays if the radio cannot determine the vehicle speed or if the engine is not running. To turn automatic volume off, press the AUTO button until AUTO VOL OFF displays.

Finding a Station

BAND: Press this button to switch between FM1, FM2, AM, or XM1 or XM2 (if equipped). The display shows the selection.

ADJ (Adjust): Turn this knob to select radio stations.

SEEK : Press the down or up SEEK arrow to go to the next or to the previous station and stay there. To scan stations, press and hold either the down or up SEEK arrow for two seconds until a beep sounds. The radio goes to a station, plays for a few seconds, then goes to the next station. Press either the down or up SEEK arrow again to stop scanning. To scan preset stations, press and hold either the down or up SEEK arrow for more than four seconds until two beeps sound. The radio goes to the first preset station stored on the pushbuttons, plays for a few seconds, then goes to the next preset station. Press either the down or up SEEK arrow again to stop scanning presets. The radio only seeks and scans stations with a strong signal that are in the selected band.

Setting Preset Stations

Up to 30 stations (six FM1, six FM2, and six AM, six XM1 and six XM2 (if equipped)), can be programmed on the six numbered pushbuttons, by performing the following steps:

  1. Turn the radio on.
  2. Press BAND to select FM1, FM2, AM, or XM1 or XM2.
  3. Tune in the desired station.
  4. Press AUTO TONE or AUTO EQ to select the equalization.
  5. Press and hold one of the six numbered pushbuttons until a beep sounds. When that numbered pushbutton is pressed, the station that was set, returns and the equalization that was selected is stored for that pushbutton.
  6. Repeat the steps for each pushbutton.

Setting the Tone (Bass/Midrange/Treble)

TONE / / (Bass/Treble): Press and release this button until BASS, MID (midrange), or TREB (treble) displays. Turn the ADJ (adjusts) knob to increase or to decrease the tone. The display shows the bass, mid, or treble level. If a station is weak or has static, decrease the treble. To adjust bass, midrange, or treble to the middle position, select BASS, MID, or TREB. Then press and hold the tone button for more than two seconds. The display level adjusts to the middle position and a beep sounds. To adjust all tone controls to the middle position, press and hold the tone button when no tone control is displayed. ALL CENTERED displays and a beep sounds.

AUTO TONE/AUTO EQ (Automatic Equalization): Press this button to select customized equalization settings designed for country, jazz, talk, pop, rock, and classical. The equalization setting last chosen appears on the display when you first press this button. Each time you press this button, another equalization setting displays and automatic tone or automatic equalization switches to that preset equalization setting. To return to the manual mode, press the AUTO TONE or AUTO EQ button until CUSTOM displays. Then manually adjust the bass, midrange, and treble using the tone button.

Adjusting the Speakers (Balance/Fade)

BAL/FADE / (Balance/Fade): To adjust the balance between the right and the left speakers, push and release the balance and fade button until BAL displays. Turn the ADJ (adjust) knob to move the sound toward the right or the left speakers. To adjust the fade between the front and rear speakers, push and release the balance and fade button until FADE displays. Turn the ADJ knob to move the sound toward the front or the rear speakers. To adjust balance or fade to the middle position, select BAL or FADE. Then press and hold the balance and fade button for more than two seconds. The display level adjusts to the middle position and a beep sounds. To adjust both speaker controls to the middle position, press and hold the tone button while no speaker control is displayed. ALL CENTERED displays and a beep sounds.

Finding a Program Type (PTY) Station (RDS and XM™)

To select and find a desired PTY perform the following:

  1. Press the P-TYPE button to activate program type select mode. PTY for FM or PTYPE for XM™ and a program type displays.
  2. Turn the ADJ knob to select a PTY.
  3. Once the desired PTY is displayed, press the up SEEK arrow to select and to take you to the PTY's first station.
  4. To go to another station within that PTY press the up SEEK arrow again. If the radio cannot find the desired PTY, NONE FOUND displays and the radio returns to the last station you were listening to.
  5. Press P-TYPE to exit program type select mode.
  6. If PTY times out and is no longer on the display, go back to Step 1.

If both P-TYPE and TRAF are on, the radio searches for stations with the selected PTY and traffic announcements.

BAND (Alternate Frequency): Alternate frequency lets the radio switch to a stronger station with the same program type. To turn alternate frequency on, press and hold BAND for two seconds. FM ALT FREQ ON and AF displays. The radio can switch to stations with a stronger frequency. To turn alternate frequency off, press and hold BAND again for two seconds. FM ALT FREQ OFF displays and AF disappears from the display. The radio does not switch to other stations. This function does not apply for XM™ Satellite Radio Service.

RDS Messages

ALERT!: Alert warns of local or national emergencies. When an alert announcement comes on the current radio station, ALERT! displays. You will hear the announcement, even if the volume is low or a CD is playing. If a CD is playing, play stops during the announcement. Alert announcements cannot be turned off. ALERT! is not affected by tests of the emergency broadcast system. This feature is not supported by all RDS stations.

MSG (Message): If the current station has a message, MSG displays. Press this button to see the message. The message can display the artist, song title, call in phone numbers, etc. If the entire message is not displayed, parts of the message appears every three seconds. To scroll through the message, press and release the MSG button. A new group of words display after every press of this button. Once the complete message has displayed, MSG disappears from the display until another new message is received. The last message can be displayed by pressing the MSG button. You can view the last message until a new message is received or a different station is tuned to. When a message is not available from a station, NO MESSAGE displays.

MSG (Traffic): If TRAFFIC displays, the tuned station broadcasts traffic announcements. When a traffic announcement broadcasts on the tuned radio station, you will hear it. If the current tuned station does not broadcast traffic announcements, press and hold this button for two seconds and the radio seeks to a station that does. When a station that broadcasts traffic announcements is found, the radio stops seeking and TRAF in brackets displays. When a traffic announcement broadcasts on the tuned radio station, you will hear it. If no station is found that broadcasts traffic announcements, NO TRAFFIC INFO displays. If TRAF is on the display, press and hold the MSG button for two seconds to turn off the traffic announcements. The radio plays the traffic announcement even if the volume is low. The radio interrupts the play of a CD if the last tuned station broadcasts traffic announcements. This function does not apply to XM™ Satellite Radio Service.

Radio Messages

CALIBRATE: The audio system has been calibrated for your vehicle from the factory. If CALIBRATE displays it means that the radio has not been configured properly for the vehicle and it must be returned to your dealer/retailer for service.

LOCKED: This message is displayed when the THEFTLOCK® system has locked up. Take your vehicle to your dealer/retailer for service. If any error occurs repeatedly or if an error cannot be corrected, contact your dealer/retailer.

Radio Messages for XM™ Only

See XM Radio Messages later in this section for further detail.

Playing a CD

If the ignition or radio is turned off, with a CD in the player, it stays in the player. When the ignition or radio is turned on, the CD starts playing where it stopped, if it was the last selected audio source.

When a CD is inserted, the CD symbol appears on the CD. As each new track starts to play, the track number displays.

The CD player can play the smaller 3 inch (8 cm) single CDs with an adapter ring. Full-size CDs and the smaller CDs are loaded in the same manner.

If playing a CD-R, the sound quality can be reduced due to CD-R quality, the method of recording, the quality of the music that has been recorded, and the way the CD-R has been handled. There can be an increase in skipping, difficulty in finding tracks, and/or difficulty in loading and ejecting. If these problems occur, check the bottom surface of the CD. If the surface of the CD is damaged, such as cracked, broken, or scratched, the CD does not play properly. If the surface of the CD is soiled, see Care of Your CDs for more information.

If there is no apparent damage, try a known good CD.

Do not add any label to a CD, it could get caught in the CD player. If a CD is recorded on a personal computer and a description label is needed, try labeling the top of the recorded CD with a marking pen.

Notice: If a label is added to a CD, or more than one CD is inserted into the slot at a time, or an attempt is made to play scratched or damaged CDs, the CD player could be damaged. While using the CD player, use only CDs in good condition without any label, load one CD at a time, and keep the CD player and the loading slot free of foreign materials, liquids, and debris.

If an error displays, see "CD Messages" later in this section.

LOAD: Press the LOAD button to load CDs into the CD player. This CD player holds up to six CDs.

To insert one CD, do the following:

  1. Turn the ignition on.
  2. Press and release the LOAD button.
  3. Wait for INSERT CD to flash on the display.
  4. Load a CD. Insert the CD partway into the slot, label side up. The player pulls the CD in.

To insert multiple CDs, do the following:

  1. Turn the ignition on.
  2. Press and hold the LOAD button for two seconds.
  3. A beep sounds and MULTI LOAD CD displays, then INSERT CD and the number displays.

  4. Once INSERT CD and the number displays, load a CD. Insert the CD partway into the slot, label side up. The player pulls the CD in.
  5. Once the CD is loaded, INSERT CD and the number displays again. Once INSERT CD and the number displays again, you can load another CD. The CD player takes up to six CDs. Do not try to load more than six.

To load more than one CD but less than six, complete Steps 1 through 3. When finished loading CDs, the radio begins to play the last CD loaded.

If more than one CD has been loaded, a number for each CD is displayed and the currently selected slot number is underlined.

EJECT/ : To eject a single CD press the EJECT/ button. The radio displays EJECTING CD # and the single CD symbol flashes until the CD is ready to be removed. When the CD is ready to be removed it ejects part way from the radio and the display changes to a flashing REMOVE CD # with the single CD symbol flashing until the CD is removed. If the CD is not removed within 25 seconds the radio pulls it back in. To eject multiple CDs, press and hold the EJECT/ button until a beep sounds and EJECTING ALL CDS displays with the single CD symbol flashing. The CD symbol flashes until a CD is ready to be removed. When the CD is ready to be removed it ejects part way from the radio and the display changes to a flashing REMOVE CD # with the single CD symbol flashing until the CD is removed. If the CD is not removed within 25 seconds the radio pulls it back in. After the CD is removed the radio repeats the previous actions until all of the CDs have been removed or a CD is pulled back in.

Playing a Specific Loaded CD

For every CD loaded, a number appears on the display. To play a specific CD, press the numbered pushbutton that corresponds to the CD you want to play. A small bar appears under the CD number that is playing, and the track number displays.

If an error displays, see "CD Messages" later in this section.

(Reverse): Press and hold the button to reverse quickly within a track. You will hear sound at a reduced volume. Release the button to play the passage. T#, the elapsed time, and REV displays.

(Fast Forward): Press and hold the button to advance quickly within a track. You will hear sound at a reduced volume. Release the button to play the passage. T#, the elapsed time, and FWD displays.

RPT (Repeat): With repeat, one track or an entire CD can be repeated. To use repeat, do the following:

    • To repeat the track you are listening to, press and release the RPT button. REPEAT ON and RPT displays. Press RPT again to turn off repeat play. REPEAT OFF displays and RPT disappears from the display.
    • To repeat the CD you are listening to, press and hold the RPT button for more than two seconds. REPEAT ON and RPT displays. Press RPT again to turn off repeat play. REPEAT OFF displays and RPT disappears from the display.
RDM (Random): With the random setting, the tracks can be listened to in random, rather than sequential, order, on one CD or on all of the CDs. To use random, do one of the following:

    • To play the tracks on the CD you are listening to in random order, press the RDM button. RANDOM TRACKS and RDM displays. Press RDM again to turn off random play. RANDOM OFF displays and RDM disappears from the display.
    • To play the tracks on all of the CDs that are loaded, in random order, press and hold the RDM button for more than two seconds. A beep sounds, RANDOM ALL CDS, and RDM displays. Press RDM again to turn off random play. RANDOM OFF displays and RDM disappears from the display.
SEEK : Press the down SEEK arrow to go to the start of the current track, if more than eight seconds have played. Press the up SEEK arrow to go to the beginning of the next track. If either the down or up SEEK arrow is held or pressed more than once, the player continues moving backward or forward through the CD. To scan the current CD, press and hold either the down or up SEEK arrow for more than two seconds. The CD goes to the next track, plays the first 10 seconds, then goes to the next track. Press either the down or up SEEK arrow again to stop scanning. To scan all of the CDs loaded, press and hold either the down or up SEEK arrow for more than four seconds. The CD goes to the next CD, plays the first 10 seconds of the first track, then goes to the next CD. Press either the down or up SEEK arrow again to stop scanning.

DISP (Display): Press this knob to switch between time, temperature, and the elapsed time of the track. To change the default on the display (CD#/Track#/Time, CD#/Track#/Temperature, or Track#/Elapsed Time/Temperature), press the knob until you see the desired display, then hold the knob for two seconds. The radio produces one beep and the selected display is now the default.

AUTO TONE/AUTO EQ (Automatic Equalization): Press this button to select the desired equalization setting while playing a CD. The equalization is set when a CD is played. For more information, see "AUTO TONE" or "AUTO EQ" listed previously in this section.

BAND: Press this button to listen to the radio when a CD is playing. The inactive CD(s) remains inside the radio for future listening.

SRCE (Source): Press this button to play a CD or to access the remote device, when listening to the radio.

Using Song List / Mode

The six-disc CD changer has a feature called song list. This feature is capable of saving 20 track selections.

To save tracks into the song list feature, perform the following steps:

  1. Turn the radio on and load it with at least one CD. See "LOAD" listed previously in this section for more information.
  2. Check to see that the CD changer is not in song list mode. S-LIST should not display. If S-LIST is present, press the button to turn it off.
  3. Select the desired CD by pressing the numbered pushbutton and then use the up SEEK arrow to locate the track to be saved. The track begins to play.
  4. Press and hold the button for two or more seconds to save the track into memory. When song list is pressed, one beep sounds. After two seconds of pressing song list continuously, two beeps sound to confirm that the track has been saved and TRACK number ADDED displays.
  5. Repeat Steps 3 and 4 for saving other selections.

SONG LIST FULL displays if you try to save more than 20 selections.

To play the song list, press the song list button. One beep sounds and SONG LIST displays. The recorded tracks begins to play in the order that they were saved.

Seek through the song list by using the SEEK arrows. Seeking past the last saved track returns you to the first saved track.

To delete tracks from the song list, perform the following steps:

  1. Turn the CD player on.
  2. Press the button to turn song list on. SONG LIST displays.
  3. Press the SEEK arrows to select the desired track to be deleted.
  4. Press and hold the button for two seconds. When song list is pressed, one beep sounds. After two seconds of continuously pressing the song list button, two beeps sound to confirm that the track has been deleted and TRACK number DELETED displays.

After a track has been deleted, the remaining tracks are moved up the list. When another track is added to the song list, the track is added to the end of the list.

To delete the entire song list, perform the following steps:

  1. Turn the CD player on.
  2. Press the button to turn song list on. S-LIST displays.
  3. Press and hold the button for more than four seconds. A beep sounds, followed by two beeps after two seconds, and a final beep sounds after four seconds. SONG LIST EMPTY displays indicating that the song list has been deleted.

If a CD is ejected, and the song list contains saved tracks from that CD, those tracks are automatically deleted from the song list. Any tracks saved to the song list again are added to the bottom of the list.

To end song list mode, press the button. One beep sounds and S-LIST is removed from the display.

CD Messages

CHECK CD:  If this message appears on the display and/or the CD comes out, it could be for one of the following reasons:

    • It is very hot. When the temperature returns to normal, the CD should play.
    • You are driving on a very rough road. When the road becomes smoother, the CD should play.
    • The CD is dirty, scratched, wet, or upside down.
    • The air is very humid. If so, wait about an hour and try again.
    • There could have been a problem while burning the CD.
    • The label could be caught in the CD player.

If the CD is not playing correctly, for any other reason, try a known good CD.

If any error occurs repeatedly or if an error cannot be corrected, contact your dealer/retailer. If the radio displays an error message, write it down and provide it to your dealer/retailer when reporting the problem.