GM Service Manual Online
For 1990-2009 cars only

Standard Radio Shown - Bose® Similar


Object Number: 861306  Size: B2

Playing the Radio

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

VOLUME: Turn the 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 will allow for more volume compensation as vehicle speed increases. The volume level should always sound the same to you as you drive. To turn SCV off, press this button until OFF appears on the display. If your vehicle has the Bose radio your vehicle is equipped with Bose AudioPilot® noise compensation technology. AudioPilot monitors the level of noise in the vehicle and automatically increases or decreases the level of the audio to keep your audio above the noise. To use this feature press the SCV button until SPD COMP ON appears on the display. This feature works best at lower volume settings where background noise may be louder than the audio. At high volume settings, where the audio is much louder than the background noise, there will be no change in the audio level. To turn SCV off, press the SCV button until SPD COMP OFF appears on the display.

RCL (Recall): Push this knob to switch the display between the radio station frequency and the time. Pushing this knob with the ignition off will display the time. To change the default on the display, push 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.

Finding a Station

BAND: Press this button to switch between AM, FM1 and FM2. 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 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 18 stations (six AM, six FM1 and six FM2), by performing the following steps:

  1. Turn the radio on.
  2. Press BAND to select AM, FM1 or FM2.
  3. Tune in the desired station.
  4. Press AUTO EQ to select the equalization that best suits the type of station selected.
  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 also be automatically selected 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, including balance and fade to flat.

AUTO EQ (Automatic Equalizer): Press this button to choose bass and treble equalization settings designed for country, jazz, talk, pop, rock and classical program types. To return to the manual mode, press the AUTO EQ button until MANUAL appears on the display or adjust the bass and treble. Then you will be able to manually adjust the bass and treble using the AUDIO button. If your vehicle has the Bose® radio, press the AUTO EQ button to enhance the audio performance for different passengers in the vehicle. The setting last chosen will appear on the display when you first press AUTO EQ. Each time you press this button, another setting will appear on the display and AUTO EQ will switch to one of the preset settings listed. Your audio system allows you to choose from four different equalization settings: normal, driver, rear and spacious. These settings can be used while listening to the radio or the CD player.

NORMAL: Provides the best overall vehicle sound quality for all seating locations.

DRIVER: This setting gives the driver the best sound quality.

REAR: This setting gives the rear seat passengers the best sound quality.

SPACIOUS: This setting makes the listening space seem larger.

The radio will save separate AUTO EQ settings for each preset and source.

Adjusting the Speakers (Balance/Fade)

AUDIO: To adjust the 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 left or the right speakers. To adjust the 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, including bass and treble to flat.

Using 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. Using this system, 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, and
    • 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.

Finding a PTY Station

To select and find a desired PTY perform the following:

  1. Press the P-TYPE button. PTY will be displayed on the screen.
  2. Select a category by turning the P-TYPE knob.
  3. Once the desired category is displayed, press either SEEK arrow to select the category and take you to the category's first station.
  4. If you want to go to another station within that category and the category is displayed, press either SEEK arrow once. If the category is not displayed, press either SEEK arrow twice to display the category and then to go to another station.
  5. If PTY times out and is no longer on the display, go back to Step 1.
SCAN: You can also scan through the stations within a category by performing the following:

  1. Press the P-TYPE button. PTY will be displayed on the screen.
  2. Select a category by turning the P-TYPE knob.
  3. Once the desired category is displayed, press and hold either SCAN arrow, and the radio will begin scanning within your chosen category.
  4. Press either SCAN arrow again to stop at a particular section.
BAND (Alternate Frequency): Alternate frequency allows the radio to switch to a stronger station with the same program type. Press and hold BAND for two seconds to turn alternate frequency on. AF ON will appear on the display. The radio may switch to stronger stations. Press and hold BAND again for two seconds to turn alternate frequency off. AF OFF will appear on the display. The radio will not switch to other stations. When you turn the ignition off and then on again, the alternate frequency feature will automatically be turned on.

Setting Preset PTYs

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.
  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.
  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 compact disc is playing. If the cassette tape or compact disc player 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 and song title, call in phone numbers, etc. If the whole message is not displayed, parts of it 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 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 this button and the radio will seek to a station that does. When the radio finds a station that broadcasts traffic announcements, it 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 muted or interrupt the play of a cassette tape or CD if the last tuned station broadcasts traffic announcements.

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 button with the eject symbol on it or the RCL knob.

If an error appears on the radio display, the tape won't 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 the TUNE knob.

2 FWD (Forward): Press this pushbutton to advance quickly to another part of the tape. Press this pushbutton again to return to playing speed. The radio will play while the tape advances. You may select stations during forward operation by using the TUNE knob.

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 as many as nine selections up or down 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 is playing. The tape will stop but remain in the player.

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 compact disc 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 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:

TIGHT TAPE: When this message is displayed, the tape is tight and the player can't 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 can't 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 Compact Disc

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

When the disc is inserted, the CD symbol will be displayed. If you select an EQ setting for your CD, it will be activated each time you play a CD.

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

The integral CD player can play the smaller 8 cm single discs with an adapter ring. Full-size compact discs and the smaller discs 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 discs, they could get caught in the CD player.

Do not play 3 inch discs without a standard adapter disc.

If an error appears on the display, see "Compact Disc 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 it to play the passage. The display will show elapsed time.

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

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 this pushbutton again to turn off random mode.

AUTO EQ (Automatic Equalizer): Press this button to select the desired equalization setting while playing a compact disc. The equalization will be automatically set whenever you play a compact disc. 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 this button or press it more than once, the player will continue moving backward or forward through the disc.

SCAN : Press and hold either arrow for more than two seconds until you hear a beep and SCAN appears on the display. The disc will go to the next track, play for a few seconds, then go on to the next track. SCAN and the track number will appear on the display. Press this button 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), push 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 CD is playing.

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 compact disc 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 radio and ignition off if this button is pressed first.

Compact Disc Messages

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

    • You're driving on a very rough road. When the road becomes smoother, the disc should play.
    • The disc 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 can't 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.