GM Service Manual Online
For 1990-2009 cars only

Radio with CD (MP3) shown, Radio with CD (Base) similar


Object Number: 968352  Size: B2

Your vehicle has one of these radios as its audio system.

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 may 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 the call letters appear on the display instead of the frequency. RDS stations may 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 10 Canadian provinces. XM™ Satellite Radio has a wide variety of programming and commercial-free music, coast-to-coast, and in digital-quality sound. During your trial or when you subscribe, you will get unlimited access to XM™ Radio Online for when you are not in your vehicle. A service fee is required to receive the XM™ service. For more information, contact XM™ at www.xmradio.com or call 1-800-929-2100 in the U.S. and www.xmradio.ca or call 1-877-438-9677 in Canada.

Playing the Radio

PWR (Power): Push this knob to turn the system on and off.

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

RCL (Recall): Push this knob to switch the display between the radio station frequency and the time. When the ignition is turned off, push this knob to display the time. For RDS, push the RCL knob to change what appears on the display 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), push the RCL 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, push the RCL knob until you see the desired display, then hold the knob until the display flashes. The selected display is now the default.

SCV (Speed-Compensated Volume): Vehicles with the SCV feature, automatically lets the audio system adjust volume to make up for road and wind noise while driving. Set the volume at the desired level. Press this button to select MIN (minimum), MED (medium), or MAX (maximum). Each higher setting allows for more volume compensation at faster vehicle speeds. Then, as you drive, SCV automatically increases the volume, as necessary, to overcome noise at any speed. The volume level should always sound the same while driving. To turn SCV off, press this button until OFF displays.

AUTO VOL (Automatic Volume): Vehicles with automatic volume, automatically lets the audio system adjust volume to make up for road and wind noise as you drive. Set the volume at the desired level. Press this button to select MIN (minimum) , MED (medium), or MAX (maximum). 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. To turn automatic volume off, press this button until 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.

TUNE: Turn this knob to select radio stations.

or SEEK: Press the up or the down arrow to go to the next or to the previous station and stay there. The radio only seeks stations with a strong signal that are in the selected band.

or SCAN: Press and hold either SCAN arrow for two seconds until SCAN or SC displays and a beep sounds. The radio goes to a station, plays for a few seconds, then goes to the next station. Press either SCAN arrow again to stop scanning. To scan preset stations, press and hold either SCAN arrow for more than four seconds until PSCAN or PRESET SCAN and the preset number displays and a double beep sounds. The radio goes to the first preset station, plays for a few seconds, then goes to the next preset station. Press either SCAN arrow again to stop scanning presets. The radio scans stations only 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 EQ, or depending on the radio, 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: Press and release the TONE button until BASS, MID (midrange), or TREB (treble) displays. The SELECT LED indicator lights to show that the tone control can be adjusted. Turn the SELECT knob to increase or to decrease. If a station is weak or has static, decrease the treble. To return all of the tone controls to the middle position, press and hold the TONE button until FLAT displays.

AUDIO (Radio with Six-Disc CD Player): Push the AUDIO knob until BASS, MID (midrange), or TREB (treble) displays. Turn the knob to increase or to decrease. If a station is weak or noisy, decrease the treble. To adjust bass, midrange, or treble to the middle position, select BASS, MID, or TREB and push and hold the AUDIO knob. The display level adjusts to the middle position and a beep sounds. To adjust all tone and speaker controls to the middle position, push and hold the AUDIO knob when no tone or speaker control is displayed. CENTERED displays and one beep sounds.

EQ or AUTO EQ (Equalization): Press this button to select customized equalization settings.

Up to six customized equalization settings, can be programmed on the six numbered pushbuttons, by performing the following steps:

  1. Turn the radio on.
  2. Use the TONE button and the SELECT knob to create the desired equalization.
  3. Press and hold the EQ or AUTO EQ button for two seconds. SELECT EQ # displays and the EQ symbol flashes.
  4. Press EQ or turn the SELECT knob to select the desired EQ number.
  5. Press and hold the EQ or AUTO EQ button or push the SELECT knob to store the equalization setting and the number. A beep sounds and EQ SAVED displays.
  6. Repeat the steps for the other EQ settings and numbers.

EQ 5 has been programmed at the factory for use with talk radio, but it can be set to a different tone.

Adjusting the Speakers (Balance/Fade)

BAL (Balance): Press this button until BAL displays, to adjust the balance between the right and the left speakers. The SELECT LED indicator lights to show that the speakers can be adjusted. Turn the SELECT knob to move the sound toward the right or the left speakers.

FADE: Press this button until FADE displays, to adjust the fade between the front and the rear speakers. The SELECT LED indicator lights to show that the speakers can be adjusted. Turn the SELECT knob to move the sound toward the front or the rear speakers. Press and hold the BAL FADE button for two seconds to return all speaker settings to the middle position.

AUDIO (Radio with Six-Disc CD Player): Push the AUDIO knob until BAL (balance) displays, to adjust the balance between the right and the left speakers. Turn the knob to move the sound toward the right or the left speakers. To adjust the fade between the front and rear speakers, push and hold the AUDIO knob until FAD (fade) displays. Turn the knob to move the sound toward the front or the rear speakers. To adjust the balance and the fade to the middle position, select balance or fade and push and hold the AUDIO knob. The display level adjusts to the middle position and a beep sounds. To adjust all tone and speaker controls to the middle position, push and hold the AUDIO knob when no tone or speaker controls are displayed. CENTERED displays and one beep sounds.

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

To select and find a desired PTY perform the following:

  1. Press PROG TYPE, or depending on the radio, P-TYPE, to activate program type select mode. The PTY symbol displays.
  2. Turn the SELECT, or depending on the radio, P-TYPE, knob to select a PTY.
  3. Press either SEEK arrow, once the desired PTY displays, to select the PTY and to go to the PTY's first station.
  4. To go to another station within that PTY, and the PTY displays, press either SEEK arrow once. If the PTY is not displayed, press either SEEK arrow twice to display the PTY and then to go to another station.
  5. Press PROG TYPE, or depending on the radio, 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 PTY and TRAF are on, the radio searches for stations with the selected PTY and traffic announcements.

The Radio with Six-Disc CD player has the PTY interrupt feature. To use this feature, press and hold the P-TYPE button until a beep sounds on the PTY used to interrupt. When selected, an asterisk displays beside that PTY on the display. Select multiple interrupts if desired. When listening to a CD, the last selected RDS station interrupts play if that selected program type format is broadcast.

or SCAN: Scan the stations within a PTY by performing the following:

  1. Press PROG TYPE, or depending on the radio, P-TYPE, to activate program type select mode. The PTY symbol displays.
  2. Turn the SELECT, or depending on the radio, P-TYPE, knob to select a PTY.
  3. Press and hold either SCAN arrow, once the desired PTY is displayed, and the radio begins scanning the stations in the PTY.
  4. Press either SCAN arrow to stop at a station.

If both PTY and TRAF are on, the radio scans for stations with the selected PTY and traffic announcements.

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

Setting Preset PTYs (RDS Only)

These pushbuttons have factory PTY presets. Up to 12 PTYs (six FM1 and six FM2), can be programmed on the six numbered pushbuttons, by performing the following steps:

  1. Press BAND, or depending on the radio, AM/FM to select FM1 or FM2.
  2. Press PROG TYPE, or depending on the radio, P-TYPE, to activate program type select mode. The PTY symbol displays.
  3. Turn the SELECT, or depending on the radio, P-TYPE, knob to select a PTY.
  4. Press and hold one of the six numbered pushbuttons until a beep sounds. When that numbered pushbutton is pressed, the PTY that was set, returns, if program type select mode is activated.
  5. Repeat the steps for each pushbutton.

RDS Messages

ALERT!: Alert warns of local or national emergencies. When an alert announcement comes on the current radio station, ALERT! displays. The announcement is heard, 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.

INFO (Information):  If the current station has a message, INFO 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 INFO button. A new group of words appear on the display after every press of this button. Once the complete message has been displayed, the information symbol disappears from the display until another new message is received. The last message can be displayed by pressing the INFO button. The last message can be viewed until a new message is received or a different station is tuned to.

TRAF (Traffic): If TRAF displays, the tuned station broadcasts traffic announcements. To receive the traffic announcement from the tuned station, press this button. Brackets are displayed around TRAF and when a traffic announcement broadcasts on the tuned radio station, you will hear it. If the station does not broadcast traffic announcements, press the TRAF button and the radio seeks to a station that does. When a station that broadcasts traffic announcements is found, the radio stops seeking and brackets are displayed around TRAF. If no station is found that broadcasts traffic announcements, NO TRAFFIC displays. If the brackets are on the display and TRAF is not, press the TRAF button to remove the brackets or use the TUNE knob or the SEEK arrows to go to a station that supports traffic announcements. If no station is found that broadcasts traffic announcements, NO TRAFFIC may display. The radio plays the traffic announcement if the volume is low. The radio interrupts the play of a CD if the last tuned station broadcasts traffic announcements and the brackets are displayed. 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 your vehicle and it must be returned to your dealer/retailer for service.

LOCKED: Vehicles with the Theft-Deterrent Feature may display LOCKED when the THEFTLOCK® system has locked up. Take the 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

Radio with CD (Base)

Insert a CD partway into the slot, label side up. The player pulls it in and the CD should begin playing. If you want to insert a CD when the ignition is off, first press the eject button or push the RCL knob. If you insert a CD with the radio off and the ignition on, it starts to play.

Radio with CD (MP3)

Insert a CD partway into the slot, label side up. The player pulls it in and READING DISC and the CD symbol appears on the display. If you want to insert a CD with the ignition off, first press the EJECT button or push the RCL knob.

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

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 to play where it stopped, if it was the last selected audio source.

For vehicles that have a radio with a Six-Disc CD player, see the following:

LOAD / CD : Press the LOAD side of this 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 the indicator light, located to the right of the slot, to turn green.
  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 the indicator light, located to the right of the slot, begins to flash.

  4. Once the light stops flashing and turns green, 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, the light begins flashing again. Once the light stops flashing and turns green 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 displays.

Playing a Specific Loaded CD

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

If an error appears on the display, see "CD Messages" later in this section.

LOAD / CD (Eject): Press the CD eject side of this button to eject a CD(s). A beep sounds and the indicator light flashes to indicate when a CD is being ejected. REMOVE CD displays. The CD can be removed. If the CD is not removed, after 25 seconds, the CD is automatically pulled back into the player. If the CD is pushed back into the player, before the 25 second time period is complete, the player senses an error and tries to eject the CD several times before stopping. Do not repeatedly press the CD eject button to eject a CD after trying to push it in manually. The player's 25-second eject timer resets at each press of eject, causing the player to not eject the CD until the 25-second time period has elapsed. Once the player stops and the CD is ejected, remove the CD. After removing the CD, push the PWR knob off and then on again, or wait for the system to reset. This clears the CD-sensing feature and enables CDs to be loaded into the player again.

1 (Forward) or FWD (Forward): Depending on the radio that your vehicle has, the reverse arrows will look different, but they function the same. Press and hold this button to advance quickly within a track. Sound is heard at a reduced volume. Release this pushbutton to play the passage. The elapsed time of the track displays.

RPT (Repeat): For the Radio with Six-Disc CD player, use this feature to repeat one track or an entire CD. To use repeat, do the following:

    • To repeat the track you are listening to, press and release the RPT button. RPT displays. Press RPT again to turn off repeat play.
    • To repeat the CD you are listening to, press and hold the RPT button for two seconds. RPT displays. Press RPT again to turn off repeat play.
RDM 2 / RDM 3 / RDM (Random): Depending on the radio, press this button to hear the tracks in random, rather than sequential, order. RDM and the track number displays. Press RDM again to turn off random play. For the Radio with Six-Disc CD player, the tracks can be listened to in random order, on one CD or on all of the CDs. To use random on the Radio with Six-Disc CD player, do one of the following:

    • To play the tracks on the CD in random order, press and release the RDM button. RANDOM ONE displays. Press RDM again to turn off random play.
    • To play the tracks on all of the CDs that are loaded in random order, press and hold RDM for more than two seconds. A beep sounds and RANDOM ALL displays. Press RDM again to turn off random play.
3 (Next Folder): This button does not have a function for non-MP3 CDs. Press this button to go to the next MP3 folder.

4 or REV (Reverse): Depending on the radio that your vehicle has, the reverse arrows will look different, but they function the same. Press and hold this button to reverse quickly within a track. Sound is heard at a reduced volume. Release this pushbutton to play the passage. The elapsed time of the track displays.

6 (Previous Folder): This button does not have a function for non-MP3 CDs. Press this button to go to the previous MP3 folder.

EQ or AUTO EQ (Equalization): Press EQ, or depending on the radio, AUTO EQ, to select the desired customized equalization setting while playing a CD. The equalization is automatically set when a CD is played. See "EQ" or "AUTO EQ" listed previously for more information.

SEEK (Radios with CD): Press the SEEK arrows to go to the previous or to the next track. Press either arrow for more than two seconds to search the previous or next tracks at two tracks per second. When the desired track number displays, release the arrow to stop searching and to play the track.

SEEK (Radio with Six-Disc CD Player): Press the left arrow to go to the start of the current track, if more than ten seconds have played. Press the right arrow to go to the next track. If either arrow is held or pressed more than once, the player continues moving backward or forward through the CD.

SCAN (Radios with CD): Press and hold either arrow for more than two seconds until SCAN and the track number displays and a beep sounds. The CD goes to the next track, plays for a few seconds, then goes to the next track. Press either arrow again to stop scanning.

SCAN (Radio with Six-Disc CD Player): To scan one CD, press and hold either SCAN arrow for more than two seconds until SCAN displays and a beep sounds. The radio goes to the next track, plays for 10 seconds, then goes to the next track. Press either SCAN arrow again, to stop scanning. To scan all loaded CDs, press and hold either SCAN arrow for more than four seconds until CD SCAN displays and a beep sounds. Use this feature to listen to 10 seconds of the first track of each loaded CD. Press either SCAN arrow again, to stop scanning.

RCL (Recall): Push this button, or depending on the radio, press the RCL knob, to see how long the current track has been playing. To change the default on the display, track and elapsed time, push the button until the desired option displays, then hold the button until the display flashes. The selected display is now the default.

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

CD AUX (Auxiliary): Press this button to play a CD while listening to the radio.

Care of Your CDs

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. Handle them carefully. Store CD-R(s) in their original cases or other protective cases and away from direct sunlight and dust. The CD player scans the bottom surface of the disc. If the surface of a CD is damaged, such as cracked, broken, or scratched, the CD does not play properly or not at all. Do not touch the bottom side of a CD while handling it; this could damage the surface. Pick up CDs by grasping the outer edges or the edge of the hole and the outer edge.

If the surface of a CD is soiled, take a soft, lint free cloth or dampen a clean, soft cloth in a mild, neutral detergent solution mixed with water, and clean it. Make sure the wiping process starts from the center to the edge.

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

Care of Your CD Player

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 instead.

The use of CD lens cleaners for CDs is not advised, due to the risk of contaminating the lens of the CD optics with lubricants internal to the CD player mechanism.

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.

Using Song List Mode (Radio with Six-Disc CD Player)

This type of radio 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 CD player on and load it with at least one CD. See "LOAD CD" 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 displays, press the SONG LIST button to turn it off.
  3. Select the desired CD by pressing the numbered pushbutton and then use the SEEK SCAN right arrow to locate the track to be saved. The track begins to play.
  4. Press and hold the SONG LIST button to save the track into memory. When SONG LIST is pressed, one beep sounds. After two seconds of continuously pressing the SONG LIST button, two beeps sound to confirm the track has been saved.
  5. Repeat Steps 3 and 4 for saving other selections.

S-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 S-LIST displays. The recorded tracks begins to play in the order they were saved.

Seek through the song list by using the SEEK SCAN arrows. Seeking past the last saved track returns 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 SONG LIST button to turn song list on. S-LIST displays.
  3. Press the SEEK SCAN arrows to select the desired track to be deleted.
  4. Press and hold the SONG LIST 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 the track has been deleted.

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 SONG LIST button to turn song list on. S-LIST displays.
  3. Press and hold the SONG LIST button for more than four seconds. One beep sounds, followed by two beeps after two seconds, and a final beep sounds after four seconds. S-LIST EMPTY displays indicating 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 SONG LIST button. One beep sounds and S-LIST is removed from the display.

Playing an MP3 CD-R Disc

Your vehicle's radio system may have the MP3 feature. If it has this feature, it is capable of playing an MP3 CD-R disc. For more information on how to play an MP3 CD-R disc, see Using an MP3 later in this section.

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.
    • The format of the CD may not be compatible. See Using an MP3 later in this section.
    • There may have been a problem while burning the CD.
    • The label may 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.