GM Service Manual Online
For 1990-2009 cars only

Object Number: 808440  Size: B2

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 will only work when the information is available. In rare cases, a radio station may broadcast incorrect information that will cause 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 will 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 Untied States. XM™ offers 100 coast to coast channels including music, news, sports, talk, 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™ at www.xmradio.com or call 1-800-852-XMXM (9696).

Playing the Radio

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

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

AVC (Automatic Volume Control): With AVC, the audio system adjusts automatically to make up for road or wind noise as you drive. To use AVC, press and hold the TONE button until AUTO VOLUME CONTROL OFF appears on the display. Then press the LEVEL plus symbol. AUTO VOLUME CONTROL ON will appear on the display. AVC VOLUME will appear on the display any time you adjust the volume while AVC is on. To turn AVC off, press and hold the TONE button until AUTO VOLUME CONTROL ON appears on the display. Then press the LEVEL minus symbol. AUTO VOLUME CONTROL OFF will appear on the display.

Finding a Station

BAND: Press this button to select weather, FM1, FM2, AM, or XM1 or XM2 (if equipped). The display will show the selection.

TUNE SEEK : This button can be pressed to two positions. Press this button to the first position to tune to the next or to the previous frequency. If this button is held at the first position for a few seconds, the radio will continue tuning until this button is released. Press this button to the second position and release it to go to the next or to the previous radio station and stay there. The radio will only seek stations with a strong signal that are in the selected band.

SCAN: Press this button for less than two seconds to scan radio stations. The radio will go to a station, play for five seconds, then go on to the next station. Press this button again to stop scanning. To scan preset stations, press and hold SCAN for more than two seconds until you hear a beep. The radio will go to the first preset station, play for five seconds, then go on to the next preset station. Press SCAN again to stop scanning presets. The radio will only scan stations with a strong signal that are in the selected band.

Setting Preset Stations

The RDS PTY mode must be off to set preset stations. Up to 36 stations (six weather, 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 weather, FM1, FM2, AM, or XM1 or XM2.
  3. Tune in the desired station.
  4. Press and hold one of the six numbered pushbuttons for more than two seconds until you hear a beep. Whenever that numbered pushbutton is pressed for less than two seconds, the station that was set will return.
  5. Repeat the steps for each pushbutton.

When battery power is removed and later applied, you will not have to reset the radio presets.

Setting the Tone (Bass/Treble)

TONE: Press and release this button until BASS, TREBLE, or MIDRANGE appears on the display. The radio keeps separate tone settings for each band, preset (except weather band presets), and source.

- LEVEL +: After selecting the desired tone control, press the plus or minus button to select the desired level. To save the tone settings for the presets, press and hold the numbered pushbutton for the desired preset for more than two seconds until you hear a beep.

Adjusting the Speakers (Balance/Fade)

TONE: Press and release this button until BALANCE or FADE appears on the display.

- LEVEL +: After selecting the desired control, press the plus or minus button to select the desired level. To save the tone settings for the presets, press and hold the numbered pushbutton for the desired preset for more than two seconds until you hear a beep.

Using Digital Signal Processing (DSP)

DSP: This feature is used to provide a choice of four different listening experiences: talk, front seat, ambience, and spacious. DSP can be used while listening to the radio, cassette, CD, or XM™. Press this button to turn DSP on. Press and release this button until the desired selection appears on the display. To turn DSP off, press and hold this button until DSP OFF appears on the display. When DSP OFF appears on the display, the system will provide the best overall audio performance. The radio keeps separate DSP settings for each band (except weather, which is always set to talk), preset, and source.

TALK: This setting should be used when listening to non-musical material such as news, talk shows, sports broadcasts, and books on tape. Talk makes spoken words sound very clear.

FRONT SEAT: This setting adjusts the audio to give the driver the best possible sound qualities. Front seat can be used at any time for any material. Rear seat passengers in the vehicle may not get the same effect.

AMBIENCE: This setting is used to enhance the stereo effect.

SPACIOUS: This setting is used to make the listening space seem larger.

Finding a Program Type (PTY) Station (XM™ Only)

To select and find a desired PTY perform the following:

  1. Press PTY to activate program type select mode. PTY will appear on the display.
  2. Press LEVEL to select a PTY.
  3. Once the desired PTY is displayed, press either TUNE SEEK arrow to select the PTY and to take you to the PTY's first station.
  4. To go to another station within that PTY, press TUNE SEEK once to display the PTY, then press TUNE SEEK again to go to another station.
  5. Press PTY 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 TA are on, the radio will search for stations with the selected PTY and traffic announcements.

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

  1. Press PTY to activate program type select mode. PTY will appear on the display.
  2. Press LEVEL to select a PTY.
  3. Once the desired PTY is displayed, press SCAN, and the radio will begin scanning the stations in the PTY.
  4. Press SCAN to stop at a station.

RDS Messages

ALERT!: Alert warns of local or continental U.S.-based emergencies. When an alert announcement comes on the current radio station or a related network station, ALERT will appear on the display. You will hear the announcement, even if the volume is low or a cassette tape or a CD is playing, or if RDS mode is turned off. To increase or to decrease the volume, turn the PWR/VOL knob. TA VOLUME will appear on the display while the volume is being adjusted. If the radio tunes to a related network station for an alert announcement, it will return to the original station when the announcement is finished. If a cassette tape or CD is playing, play will stop during the announcement. Alert announcements cannot be turned off. ALERT! will not be 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 will appear on the display. Press this button, to see the message. The message may display the artist, song title, call in phone numbers, etc. If the entire message does not appear on the display, parts of the message will appear every three seconds. To scroll through the message, press and release the MSG button. A new group of words will appear on the display after every press of the MSG button. Once the complete message has been displayed, MSG will disappear from the display until another new MSG is received. For XM™ (if equipped), press the MSG button while in XM mode to retrieve four different categories of information related to the current song or channel: Artist Name/Feature, Song/Program Title, Channel Category. Each of the four information types may have multiple pages of text. To reach a category, press and release the MSG button repeatedly until the desired type is displayed. If there are multiple pages of text for the information selected type, the radio will automatically display all the pages for that type at a rate of about one page every three seconds before timing out and returning to the default display. You may override this feature by pressing the MSG button to review all of the pages at your own pace.

TA (Traffic): If TA appears on the display, the tuned station broadcasts traffic announcements and when a traffic announcement comes on the tuned radio station you will hear it. If the station does not broadcast traffic announcements, press the TA button and the radio will seek to a station that does. When a station that broadcasts traffic announcements is found, the radio will stop seeking and TA will appear on the display. When a traffic announcement comes on the tuned radio station you will hear it. If no station is found that broadcasts traffic announcements, NO TRAFFIC STATION FOUND will appear on the display. If TA is on the display, press the TA button to turn off the traffic announcements. The radio will play the traffic announcement even if the volume is low. The radio will interrupt the play of a cassette tape or CD if the last tuned station broadcasts traffic announcements. This function does not apply to XM™ Satellite Radio Service.

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 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.

Playing a Cassette Tape

The tape player is built to work best with tapes that are up to 30 to 45 minutes long on each side. Tapes longer than that are so thin they may not work well in this player. The longer side with the tape visible should face to the right. If you hear nothing or hear a garbled sound, the tape may not be in squarely. Press the eject button to remove the tape and start over.

If the ignition and radio are off, press the eject button or the RCL knob to insert and to begin play of a tape. If the ignition is on and the radio is off, the tape can be inserted and will begin playing.

While the tape is playing, use the VOL, TONE, LEVEL, and DSP controls just as you do for the radio. Other controls may have different functions when a tape is inserted. The display will show an underlined tape symbol. TAPE PLAY will appear on the display when a tape is playing, with an arrow to indicate which side of the tape is playing.

Your cassette tape player automatically reduces background noise. Dolby® Noise Reduction is manufactured under a license from Dolby® Laboratories Licensing Corporation. Dolby® and the double-D symbol are trademarks of Dolby® Laboratories Licensing Corporation.

Cassette tape adapter kits for portable CD players will work in the cassette tape player. See "CD Adapter Kits" later for more information.

The tape bias is set automatically when a metal or chrome tape is inserted.

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

1 PREV (Previous): The tape must have at least three seconds of silence between each selection for previous to work. Press this pushbutton to go to the previous selection on the tape.

2 NEXT: The tape must have at least three seconds of silence between each selection for next to work. Press this pushbutton to go to the next selection on the tape.

3 RW (Rewind): Press this pushbutton to quickly rewind the tape. The radio will play while the tape rewinds. Press this pushbutton again to return to playing speed.

4 FF (Fast Forward): Press this pushbutton to quickly fast forward the tape. The radio will play while the tape advances. Press this pushbutton again to return to playing speed.

SEEK : The tape must have at least three seconds of silence between each selection for SEEK to work. Press the up or the down arrow to seek to the next or to the previous selection on the tape.

SCAN: Press this button to listen to each selection for a few seconds. The tape will go to the next selection, play for a few seconds, then go on to the next selection. Press this button again to stop scanning.

SOURCE: Press this button to play a cassette tape or CD when listening to the radio. Available loaded sources are shown on the display. If a source is being used, it will be underlined on the display. If none of the audio sources are loaded, NO SOURCE LOADED will appear on the display.

BAND: Press this button to listen to the radio when playing a cassette tape or CD. The inactive tape or CD will remain safely inside the radio for future listening.

SIDE: Press this button to play the other side of the tape.

(Eject): Press this button, located to the right of the cassette tape slot, to stop a tape when it is playing or to eject a tape when it is not playing. Eject may be activated with the radio and the ignition off. Cassette tapes may be loaded with the radio and ignition off if this button is pressed first.

Cassette Tape Messages

If an error occurs while trying to play a cassette tape, it could be for one of the following reasons:

    • The cassette tape is tight and the cassette player cannot turn the tape hubs. Remove the tape. Hold the tape with the open end down and try to turn the right hub counterclockwise with a pencil. Turn the tape over and repeat. If the hubs do not turn easily, the tape may be damaged and should not be used in the player. Try a new tape to make sure the player is working properly.
    • The tape is broken. Try a new tape.
    • The tape is wrapped around the tape head. Attempt to get the cassette out. Try a new tape.
CLEAN TAPE: If this message appears on the display, the cassette tape player needs to be cleaned. It will still play tapes, but it should be cleaned as soon as possible to prevent damage to the tapes and player. See Care of the Cassette Tape Player . If the cassette tape is not playing correctly, for any other reason, try a known good cassette. If any error occurs repeatedly or if an error cannot be corrected, contact your GM dealer. If the radio displays an error message, write it down and provide it to your GM dealer when reporting the problem.

Playing a CD

Insert a CD partway into the slot, label side up. The player will pull 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 the ignition or radio is turned off with the CD in the player, it will stay in the player. When the ignition or radio is turned on, the CD will start playing where it stopped, if it was the last selected audio source.

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

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 may 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 may be an increase in skipping, difficulty in finding tracks, and/or difficulty in loading and ejecting. If these problems occur try a known good CD.

Do not add paper labels to CDs, they could get caught in the CD player.

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

1 PREV (Previous): Press this pushbutton to go to the previous track on the CD.

2 NEXT: Press this pushbutton to go to the next track on the CD.

3 RW (Rewind): Press this pushbutton to reverse quickly within a track. Release it to return to playing speed.

4 FF (Fast Forward): Press this pushbutton to fast forward quickly within a track. Release it to return to playing speed.

6 RDM (Random): Press this pushbutton to listen to the tracks in random, rather than sequential, order. RDM will appear on the display. Press RDM to turn off random play. RDM will disappear from the display.

SEEK : Press the up or the down arrow to go to the next or to the previous track.

SIDE: Press this button to play a CD when listening to the radio.

SCAN: Press this button to listen to each track for a few seconds. The CD will go to a track, play for a few seconds, then go on to the next track. Press this button again to stop scanning.

SOURCE: Press this button to play a cassette tape or CD when listening to the radio. Available loaded sources are shown on the display. If a source is being used, it will be underlined on the display. If none of the audio sources are loaded, NO SOURCE LOADED will appear on the display.

BAND: Press this button to listen to the radio when playing a cassette tape or CD. The inactive tape or CD will remain safely inside the radio for future listening.

(Eject): Press this button, located to the right of the CD slot, to stop a CD when it is playing or to eject a CD when it is not playing. Eject may be activated with the ignition and radio off.

CD Messages

If 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.
    • It is very hot. When the temperature returns to normal, 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 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 GM dealer. If the radio displays an error message, write it down and provide it to your GM dealer when reporting the problem.