GM Service Manual Online
For 1990-2009 cars only

Object Number: 861306  Size: B2

Radio Data System (RDS)

Your audio system is equipped with a Radio Data System (RDS). RDS features are available for use only on FM stations that broadcast RDS information.

With RDS, your 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 you are tuned to an RDS station, the station name or the 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 (48 Contiguous US States)

XM™ is a continental U.S. based satellite radio service that offers 100 coast to coast channels including music, news, sports, talk, and children's programming. XM™ provides digital quality audio and text information, including 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

POWER: Press this knob to turn the system on and off.

VOLUME: Turn this knob to increase or to decrease volume.

SCV (Speed-Compensated Volume): With SCV, your audio system adjusts automatically to make up for road and wind noise as you drive. Set the volume at the desired level. Press this button to select MIN, MED, or MAX. 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 to you as you drive. If you don't want to use SCV, select OFF.

RCL (Recall): Press this knob to switch the display between the radio station frequency and the time. Pressing this knob with the ignition off will display the time. For XM™ (48 contiguous US states, if equipped), press 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, press the RCL knob until you see the display you want, then hold the knob until the display flashes. The selected display will now be the default.

Finding a Station

BAND: Press this button to switch between FM1, FM2, AM, or XM1 or XM2 (48 contiguous US states, if equipped). The display will show your selection.

TUNE: Turn this knob to select radio stations.

SEEK : Press the right or the left arrow to go to the next or to the previous station and stay there. The radio will seek only to stations that are in the selected band and only to those with a strong signal.

SCAN : Press and hold either arrow for two seconds until SC appears on the display and you hear a beep. The radio will go to a station, play for a few seconds, then go on 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. PRESET SCAN will appear on the display. You will hear a double beep and the P will blink with the preset number. The radio will go to the first preset station stored on your pushbuttons, play for a few seconds, then go on to the next preset station. Press either SCAN arrow again to stop scanning presets. The radio will scan only to stations that are in the selected band and only to those with a strong signal.

Setting Preset Stations

The six numbered pushbuttons let you return to your favorite stations. You can set up to 30 stations (six FM1, six FM2, and six AM, six XM1 and six XM2 (48 contiguous US states, if equipped), 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 EQ to select the equalization.
  5. Press and hold one of the six numbered pushbuttons until you hear a beep. Whenever you press that numbered pushbutton, the station you set will return and the equalization that you selected will be automatically stored for that pushbutton.
  6. Repeat the steps for each pushbutton.

Setting the Tone (Bass/Treble)

AUDIO: Press and release the AUDIO button until BASS, MID, or TREB appears on the display. Press the knob above the AUDIO button to extend it, then turn the knob to increase or to decrease. If a station is weak or noisy, you may want to decrease the treble. Pressing and holding the AUDIO button for at least two seconds will return all tone settings to the middle position.

AUTO EQ (Automatic Equalizer): Press this button to select customized bass, midrange, and treble equalization settings designed for country, jazz, talk, pop, rock, and classical.

Adjusting the Speakers (Balance/Fade)

AUDIO: To adjust balance between the right and the left speakers, press and release the AUDIO button until BAL appears on the display. Press the knob above the AUDIO button to extend it, then turn the knob to move the sound toward the right or the left speakers. To adjust fade between the front and the rear speakers, press and release the AUDIO button until FAD appears on the display. Press the knob above the AUDIO button to extend it, then turn the knob to move the sound toward the front or the rear speakers. Pressing and holding the AUDIO button for at least two seconds will return all tone settings to the middle position.

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 will appear on the display.
  2. Turn the P-TYPE knob to select a PTY.
  3. Once the desired PTY is displayed, press either SEEK arrow to select the PTY and take you to the PTY's first station.
  4. If you want to go to another station within that PTY and the PTY is displayed, 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 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 will search for stations with the selected PTY and traffic announcements.

SCAN: You can scan the stations within a PTY by performing the following:

  1. Press the P-TYPE button to activate program type select mode. PTY will appear on the display.
  2. Turn the P-TYPE knob to select a PTY.
  3. Once the desired PTY is displayed, press and hold either SCAN arrow, and the radio will begin 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 will scan 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 will appear on the display. The radio may switch to stronger stations. To turn alternate frequency off press and hold BAND again for two seconds. AF OFF will appear on the display. The radio will not switch to other stations. This function does not apply for XM™ Satellite Radio Service.

Setting Preset PTYs (RDS Only)

The six numbered pushbuttons let you return to your favorite program types (PTYs). These pushbuttons have factory PTY presets. You can set up to 12 PTYs (six FM1 and six FM2) by performing the following steps:

  1. Press BAND to select FM1 or FM2.
  2. Press the P-TYPE button to activate program type select mode. PTY will appear on the display.
  3. Turn the P-TYPE knob to select a PTY.
  4. Press and hold one of the six numbered pushbuttons until you hear a beep. Whenever you press that numbered pushbutton, the PTY you set will return 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! will appear on the display. You will hear the announcement, even if the volume is muted or a cassette tape or CD is playing. If the cassette tape or CD is playing, play will stop during the announcement. You will not be able to turn off alert announcements. ALERT! will not be 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 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 whole message is not displayed, parts of the message will appear every three seconds. To scroll through the message at your own speed, press the INFO button repeatedly. A new group of words will appear on the display with each press. Once the complete message has been displayed, INFO will disappear from the display until another new message is received. The old message can be displayed by pressing the INFO button. You can view an old message until a new message is received or a different station is tuned to.

TRAF (Traffic): If TRAF appears on the display, the tuned station broadcasts traffic announcements. To receive the traffic announcement from the tuned station, press this button. Brackets will be displayed around TRAF and when a traffic announcement comes on the tuned radio station you will hear it. If the current tuned station does not broadcast traffic announcements, press the TRAF button and the radio will seek to a station that does. When the radio finds a station that broadcasts traffic announcements, the radio will stop and brackets will be displayed around TRAF. When a traffic announcement comes on the tuned radio station you will hear it. If no station is found, NO TRAFFIC will appear on the display. If the brackets are on the display and TRAF is not, you can then 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, NO TRAFFIC will appear on the display. Your radio will play the traffic announcements even if the volume is low. Your radio will interrupt the play of a cassette tape or CD if the last tuned station broadcasts traffic announcements and the brackets are on the display. 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).

Updating

Updating encryption code

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

No Signal

Loss of signal

Your system is functioning correctly, but you are 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)

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

CH Off Air

Channel not in service

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

CH Unavail

Channel no longer available

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

No Info

Artist Name/Feature not available

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

No Info

Song/Program Title not available

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

No Info

Category Name not available

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

No Info

No Text/Informational message available

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

Not Found

No channel available for the chosen category

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

XM Locked

Theft lock active

The XM receiver in your vehicle may have previously been in another vehicle. For security purposes, XM receivers cannot be swapped between vehicles. If you receive this message after having your vehicle serviced, check with the servicing facility.

Radio ID

Radio ID label (channel 0)

If you tune to channel 0, you will see this message alternating with your XM Radio 8 digit radio ID label. This label is needed to activate your service.

Unknown

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

If you receive this message when you tune to channel 0, you may have a receiver fault. Consult with your dealer.

Chk XMRcvr

Hardware failure

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

Playing a Cassette Tape

Your 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 the ignition is on, but the radio is off, the tape can be inserted and will begin playing. If you hear nothing but a garbled sound, the tape may not be in squarely. Press the eject button, located next to the cassette tape slot, to remove the tape and start over.

While the tape is playing, use the VOLUME, POWER, AUDIO, AUTO EQ, and the SEEK controls just as you do for the radio. The display will show TAPE and an arrow showing which side of the tape is playing. The tape player automatically begins playing the other side when it reaches the end of the tape.

Your tape bias is set automatically when a metal or chrome tape is inserted. If you want to insert a tape while the ignition is off, first press the eject button or the RCL knob.

If an error appears on the radio display, the tape will not play because of an error. See "Cassette Tape Messages" later in this section.

1 REV (Reverse): Press this pushbutton to reverse the tape rapidly. Press it again to return to playing speed. The radio will play while the tape reverses. You may select stations during reverse operation by using TUNE, SEEK, and SCAN.

2 FWD (Forward): Press this pushbutton to advance the tape rapidly. Press it again to return to playing speed. The radio will play while the tape advances. You may select stations during advance operation by using TUNE, SEEK, and SCAN.

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

AUTO EQ (Automatic Equalizer): Press AUTO EQ to select the desired equalization setting while playing a cassette tape. The equalization will be automatically set whenever you play a cassette tape. See "AUTO EQ" listed previously for more information.

SEEK : Your tape must have at least three seconds of silence between each selection for seek to work. Press the right or the left arrow to search for the next or the previous selection on the tape. You can skip up to nine selections on the tape. Choose how many selections you want to skip, then press the right or left SEEK arrows that many times. The number of selections to be skipped will appear on the display.

SCAN : Press and hold either arrow for more than two seconds until you hear a beep and SCAN appears on the display. 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.

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

TP CD (TAPE): Press this button to play a cassette tape or a CD when listening to the radio. Press TP CD to switch between the tape and CD if both are loaded. The inactive tape or CD will remain safely inside the radio for future listening. The display will show the TAPE and CD symbols.

(Eject): Press this button, located next to the cassette tape slot, to eject a tape. Eject may be activated with either the ignition or radio off. Cassettes may be loaded with the ignition or the radio off if this button is pressed first.

Cassette Tape Messages

If an error appears on the display, it could be for one of the following reasons:

TIGHT TAPE: When this message is displayed, the tape is tight and the 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, your tape may be damaged and should not be used in the player. Try a new tape to make sure your player is working properly.

BROKEN TAPE: If this message is displayed, the tape is broken. Try a new tape.

WRAPPED: When this message is displayed, the tape is wrapped around the tape head. Attempt to get the cassette out. Try a new tape.

CLEAN PLAYR (Clean Player):  This message may also appear on the radio display to indicate that the cassette tape player needs to be cleaned. It will still play tapes, but you should clean it as soon as possible to prevent damage to the tapes and player. For additional information see Care of the Cassette Tape Player . If any error occurs repeatedly or if an error cannot be corrected, contact your dealer. If your radio displays an error message, write it down and provide it to your dealer when reporting the problem.

Playing a CD

With the ignition on, insert a CD partway into the slot, label side up. The player will pull it in and the CD should begin playing. The CD symbol will appear on the display. If you want to insert a CD when the ignition is off, first press the eject button or the RCL knob.

If you select an EQ setting for your CD, it will be activated each time you play a CD.

If you turn off the ignition or radio with a CD in the player, it will stay in the player. When you turn on the ignition or radio, the CD will start playing where it stopped if it was the last selected audio source.

As each new track starts to play, the track number will appear on the display.

The CD player can play the smaller 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. You may experience 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.

Do not play 3 inch CDs without a standard adapter CD.

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

1 REV (Reverse): Press and hold this pushbutton to reverse quickly within a track. You will hear sound at a reduced volume. Release the pushbutton to play the passage. The display will show the elapsed time of the track.

2 FWD (Forward): Press and hold this pushbutton to advance quickly within a track. You will hear sound at a reduced volume. Release the pushbutton to play the passage. The display will show the elapsed time of the track.

4 RDM (Random): Press this pushbutton to hear the tracks in random, rather than sequential, order. RDM and the track number will appear on the display. Press RDM again to turn off random play.

AUTO EQ (Automatic Equalizer): Press this button to select the desired equalization setting while playing a CD. The equalization will be automatically set whenever you play a CD. See "AUTO EQ" listed previously for more information.

SEEK : Press the left arrow to go to the start of the current track if more than eight seconds have played. Press the right arrow to go to the next track. If you hold either arrow or press it more than once, the player will continue moving backward or forward through the CD.

SCAN : Press and hold either arrow for more than two seconds until SCAN appears on the display and you hear a beep. The CD will go to the next track, play for a few seconds, then go on to the next track. Press either arrow again to stop scanning.

RCL (Recall): Press this knob to see how long the current track has been playing. To change the default on the display (track or elapsed time), press the knob until you see the display you want, then hold the knob until the display flashes. The selected display will now be the default. While elapsed time is showing, EL TM will appear on the display.

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

TP CD (Tape): Press this button to play a cassette tape or a CD when listening to the radio. Press TP CD to switch between the tape and CD if both are loaded. The inactive tape or CD will remain safely inside the radio for future listening. The display will show the TAPE and CD symbols.

(Eject): Press this button to eject a CD. Eject may be activated with either the ignition or radio off. CDs may be loaded with the ignition or the radio off if this button is pressed first.

CD Messages

CHECK CD: If this message appears on the display and 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 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. If your radio displays an error message, write it down and provide it to your dealer when reporting the problem.