GM Service Manual Online
For 1990-2009 cars only

Object Number: 868969  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, 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 only works when the information is available. In rare cases, a radio station can broadcast incorrect information that can 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 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

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

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

SCV (Speed-Compensated Volume): With SCV, your audio system adjusts automatically to make up for road and wind noise as you drive. To get to SCV, push the TUNE/AUDIO knob repeatedly until SPEED VOL (volume) displays. Turn the TUNE/AUDIO knob 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 to you as you drive. To turn SCV off, press SCV until OFF displays.

DISP (Display): Press this button to switch the display between the radio station frequency and the time. Press this button to display the time when the ignition is turned off. For RDS, press the DISP (display) button to change what appears on the display while using RDS. The display options are station, RDS station frequency, PTY (program type), and the name of the program (if available). For XM™ (if equipped), press the DISP button 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 button until the desired display appears, then hold the button until the display flashes. The selected display becomes the default.

Finding a Station

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

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. To scan stations, press and hold either SEEK arrow for two seconds until SCAN displays. The radio goes to a station, plays for a few seconds, then goes to the next station. Press either SEEK arrow again to stop scanning. To scan preset stations, press and hold either SEEK arrow for more than four seconds until PSCAN and the preset number displays. You will hear two beeps. 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 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, or AM, or XM1 or XM2.
  3. Tune in the desired station.
  4. Press EQ to select the equalization.
  5. Press and hold one of the six numbered pushbuttons until you hear a beep. 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)

AUDIO: Push and release this knob until BASS, MID (midrange), or TREBLE displays. Then turn the AUDIO knob to increase or to decrease the tone. 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 TREBLE. Then push and hold AUDIO for more than two seconds until you hear a beep. BASS and a zero, MID and a zero, or TREBLE and a zero displays. To adjust both tone controls and both speaker controls to the middle position, first exit the audio mode by waiting five seconds without making any changes. Then push and hold the AUDIO knob for more than two seconds until you hear a beep. ALL CENTERED displays.

EQ (Equalizer): Press this button to select customized equalization settings designed for country/western, jazz, talk, pop, rock, and classical.

Adjusting the Speakers (Balance/Fade)

AUDIO: To adjust the balance between the right and the left speakers, push and release the AUDIO knob until BAL (balance) displays. Then turn the AUDIO knob to move the sound toward the right or the left speakers. A bar graph with indicators shows how the sound is balanced. To adjust the fade between the front and the rear speakers, push and release the AUDIO knob until FADE displays. Then turn the AUDIO knob to move the sound toward the front or the rear speakers. A bar graph with indicators shows how the sound is balanced. To adjust balance or fade to the middle position, select BAL or FADE. Then push and hold the AUDIO knob for more than two seconds until you hear a beep. The indicator is centered on the display. To adjust both tone controls and both speaker controls to the middle position, first exit the audio mode by waiting five seconds without making any changes. Then push and hold the AUDIO knob for more than two seconds until a beep sounds . ALL CENTERED displays.

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

To select and find a desired PTY perform the following:

  1. Press P-TYP to activate program type select mode. The PTY symbol displays.
  2. Turn the AUDIO knob to select a PTY.
  3. Once the desired PTY displays, press either SEEK arrow to select the PTY to go to the PTY's first station.
  4. To go to another station within that PTY while 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-TYP to exit the program type, select mode.
  6. If the PTY times out and is no longer displays, go back to Step 1.

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

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

  1. Press P-TYP to activate program type select mode. The PTY symbol displays.
  2. Turn the AUDIO knob to select a PTY.
  3. Once the desired PTY is displayed, press and hold either SEEK arrow. The radio begins scanning the stations in the PTY.
  4. Press either SEEK 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 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. 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.

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.

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 displays after each press of the button. Once the complete message has displayed, INFO 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 you tune to a different station.

TRAF (Traffic): If TRAF displays, the tuned station broadcasts traffic announcements. Press this button to receive the traffic announcement from the station. TRAF displays between brackets. You receive a traffic announcement when the tuned radio station broadcasts one. 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 TRAF displays between brackets. If no station is found that broadcasts traffic announcements, NO TRAFFIC displays. If only the brackets display, press the TRAF button to remove the brackets or use the TUNE knob or the SEEK arrows to go to a station that broadcasts traffic announcements. If no station is found that broadcasts traffic announcements, NO TRAFFIC displays. The radio plays the traffic announcements 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

CAL (CALIBRATE): The audio system has been calibrated for your vehicle from the factory. If CAL appears on the display it means that the radio has not been configured properly for your vehicle and must be returned to your dealer for service.

LOCKED: This message displays when the THEFTLOCK® system has locked up. Take the vehicle to your dealer for service.

If any error occurs repeatedly or if an error cannot be corrected, contact your dealer.

Radio Messages for XM™ Only

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

Playing a CD

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 while the ignition or the radio is off, first press the eject or DISP button.

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

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.

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 will not play properly. If the surface of the CD is soiled, see Care of Your CDs and DVDs 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 appears on the display, see "CD Messages" later in this section.

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

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

4 RDM (Random): Press this pushbutton to hear the tracks in random, rather than sequential, order. Press RDM again to turn off random play.

EQ (Equalizer): Press EQ to select an equalization setting while playing a CD. The equalization is set whenever a CD is played. See "EQ" listed previously for more information.

SEEK : Press the left arrow to go to the start of the current track if it has played more than eight seconds. 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. To scan tracks, press and hold either SEEK arrow for two seconds until SCAN displays and you will hear a beep. The CD goes to the next track, plays for a few seconds, then goes to the next track. The sound mutes and SCAN and the track number displays while scanning. The CD only scans forward. Press either SEEK arrow again to stop scanning.

DISP (Display): Press this button to see which track is playing. Press it again within five seconds to see how long it has been playing. To change the default on the display, track or elapsed time, press this button until you see the display you want, then hold the button until the display flashes. The selected display is now the default.

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

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

(Eject): Press this button to eject the CD. The CD can be removed. If the CD is not removed, after 25 seconds, the CD automatically pulls 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. Eject can be activated with either the ignition or radio off. CDs can be loaded with the ignition or radio off, if this button is pressed first.

CD Messages

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

Listening to a DVD

Your vehicle may have a Rear Seat Entertainment System (RSE), see Rear Seat Entertainment (RSE) System for more information. If your vehicle has this system and a DVD is playing, the DVD symbol displays indicating that the DVD is available and can be listened to through the vehicles speakers. To listen to the DVD, press the CD button until RSE displays. The current source stops and the DVD sound comes through the speakers. To stop listening to the DVD, press the CD button to play a CD, or press the BAND button to select a different source.

When the RSE system is turned off, the radio displays RSE OFF and the radio returns to the last selected audio source that you were listening to.