GM Service Manual Online
For 1990-2009 cars only

Premium Audio Option

Your vehicle may be equipped with a premium audio, which includes tweeter speakers mounted on the left and right side front doors, and rear-mounted subwoofers and amplifier.

This optimal audio system is designed for your vehicle to provide optimal performance over a broad rang of sound frequencies.

CD Player Error Messages, Probable Causes, and Solutions

Several conditions will cause errors preventing proper CD operation. This include loading a CD upside down, moisture on the CD. Moisture on the focusing mechanism internal to the CD player may also cause and error. While using your CD player, if the radio detects and error, it will let you know by either ejecting the CD or by temporarily displaying ERR.

If the error message appears on your display, please check the probable cause of the error to correct the problem. Following is a list of possible causes, along with the solution.

If the following solutions do not correct the problem, you may have a CD player failure. See your retailer or authorized service provider for service.

    • If the CD ejects upon insertion (right after loading):
        First check to see if you are inserting the CD upside down. It should be inserted with the label facing upwards. Reinstall the CD label side up. If the CD still ejects when it is install label side up, you could have a warped or cracked CD. Check the CD for problems. Avoid using any cracked or deformed CDs.
    • If the CD either skips, ejects unexpectedly, ejects immediately after loading, or mutes intermittently:
        Your CD may be scratched, dirty, or have pinholes. Clean the CD using the instructions at the end of the audio section titled Cleaning a Compact Disc. Once the CD is cleaned, check both sides of it for scratches, dirt, or pinholes. If the CD is damaged or scratched, please avoid using it.
    • If the CD will not play:
        It could be the result of condensation inside the CD player. The moisture must be dried before the CD player will operate. Turning on your climate control system may help speed up this process. It may take an hour before the CD player will operate again. (Condensation occurs for the same reason that eyeglasses fog up when someone walked from the cold outside weather to a warm room during the winter.)
    • If the CD skips or Mutes Periodically: Check the road conditions. Skipping can result from momentary vibration from a snowy or rough road, or from the joints on a highway. If the road is fine, check your CD for dirt, scratches, or pinholes.
    • If the same CD or the same selection on the CD is played repeatedly:
        Your repeat function may be on. Turn off the repeat function by pressing the RPT button (Station Frequency Preset Button 6).
    • If your radio display shows ERR then switches to the previous mode of operation:
        Check to see if a CD is stuck in the CD player.
    • CDs not appropriate to use:
        Your CD player was designed to be compatible with round digital audio CDs with the Compact Disc Digital Audio label. Other CDs may be incompatible, causing a no-play condition, ERR shown on the radio display or a jam in the loading mechanism. Some incompatible CD types are:
      • Special-shaped CDs (any that are not round)
      • Re-writeable CDs (CD-RW type are incompatible)
      • Library CDs (with thick bar-coded labels)

Cassette Player Error Messages, Probable Causes, and Solutions

Several conditions will cause errors preventing proper tape operation. These include loading a tape incorrectly, a dirty or damage tape in the tape player, or a dirty tape head. While using your tape player, if the radio detects an error, it will let you know by either ejecting the tape or by temporarily displaying Err. If an error message appears on your display, please check the probable cause of the error to correct the problem.

If the following solutions do not correct the problem, you may have a cassette tape player failure. If so, see your retailer or authorized service provider for service.

    • If your cassette player will not play the tape:
      • Clean the cassette tape player using the Cassette Tape Head Cleaning instruction found in this section, because the problem could be due to a dirty cassette tape player. Do not use the damaged tapes.
      • Is the cassette tape longer than 90 minutes (45 minutes on each side)? Do not use tapes that are longer than 90 minutes because they are so thin that they may not work in this cassette tape player.
    • If your cassette tape is tangled in the radio:
        1. Carefully remove and discard the tangled tape.
        2. Clean the cassette tape player using the Cassette Tape Head Cleaning instructions found in this section.
        3. Try a known good cassette tape to see if the tape or the tape player is at fault. If the known good tape works and does not get tangled in the radio, continue to use your cassette tape player.
    • If your cassette tape player will play your tape, but will not eject your tape.
      • Is a peeled tape label stuck in your cassette player? If it is, remove the peeled label.
      • Is the tape warped, causing it to be tangled in the radio? If it is, carefully remove and discard the warped tape.
      • Clean the cassette tape player using the Cassette Tape Head Cleaning instructions found in this section, because the problem could be due to a dirty cassette tape player. Do not use the damage tapes.
    • If your cassette tape player will not accept tapes:
      • Check for a cassette tape already in the cassette player.
      • Is a peeled tape label stuck in your cassette player? If it is, remove the peeled label.
      • Are you inserting the tape correctly? Refer to the Playing a Cassette Tape instructions. If the tape is not inserted correctly, it can become tangled in the radio.
    • If your cassette tape ejects immediately upon insertion into the radio.
      • Clean the cassette tape player using the Cassette Tape Head Cleaning instructions found in this section, because the problem could be due to a dirty cassette tape player. Do not use the damage tapes.
      • Is the cassette tape longer than 90 minutes (45 minutes on each side)? Do not use tapes that are longer than 90 minutes because they are so thin that they may not work in this cassette tape player.
      • Are you inserting the tape correctly? Refer to the Playing a Cassette Tape instructions. If the tape is not inserted correctly, it can become tangled in the radio.
    • If you notice a reduction in sound quality, no sound, or weak treble while using your cassette tape player:
        Try pressing the Dolby B® Reduction button. If no improvements are noticed, try a known good cassette tape to see if the tape or the tape player is at fault. If the second tape results in improved sound quality, discard the damaged tape and continue to use your cassette tape player.
        If the second tap results in no improvement in sound quality, try cleaning the tape player head using the Cassette Tape Head Cleaning instruction found in this section. Remember, tape head cleaning is intended to prevent the build up of oxides and cannot always remove the oxide layer if it is allowed to accumulate.
    • If your cassette tape player plays the same song repeatedly:
        Your repeat function may be on. Turn off the repeat function by pressing the RPT button (Station Frequency Preset Button 6).
    • If your cassette tape player auto reverses constantly:
        Your cassette tape may be too tightly. Adjust the cassette tape reel tension by holding the tape with the open end down and turning the hub using a pencil or pen. If it will not turn, do not use the tape.