GM Service Manual Online
For 1990-2009 cars only

Cleaning Tape Head and Capstan, Cassette Cleaning UM6

Tool Required

J 39916-A CD and Cassette Diagnostic Audio Kit

The recommended cleaning method for the cassette tape player is the use of a scrubbing action, non- abrasive cleaning cassette with pads that scrub the tape head as the hubs of the cleaner cassette turn. The recommended cleaning cassette is available in the J 39916-A .

Cut Tape Detection Feature

When using a scrubbing action, non-abrasive cleaning cassette tape, it is normal for the cassette to eject. The unit is equipped with a cut tape detection feature. A cleaning cassette may appear as a broken tape.

AM-FM Stereo with Cassette Tape Player (UM6) (Chevrolet Venture Vehicles)

Perform the following procedure in order to prevent the cleaning cassette from being ejected:

  1. Turn the ignition to the RUN or to the ACCESSORY position.
  2. Turn the radio to the ON position.
  3. Insert the scrubbing action cleaning cassette.
  4. Within 5 seconds, press and hold the REV and FWD buttons at the same time for 3 seconds.
  5. The tape symbol on the display will flash, showing that the cut tape detection feature is no longer active.

  6. Eject the cleaning cassette after the manufacturer's recommended cleaning time.

When the cleaning cassette ejects, the cut tape detection feature is active again.

You may also choose a non-scrubbing action, wet-type cleaner which uses a cassette with a fabric belt in order to clean the tape head. This type of cleaning cassette will not eject on its own. A non-scrubbing action cleaner may not clean as thoroughly as the scrubbing type cleaner. The use of a non-scrubbing action, dry-type cleaning cassette is not recommended.

After you clean the player, press and hold EJECT for 5 seconds in order to reset the CLN (clean) indicator. The radio will display a series of dashes, showing that the indicator had reset.

Cassettes are subject to wear. The sound quality may degrade over time. Always ensure that the cassette tape is in good condition before you have the tape player serviced.

Cleaning Tape Head and Capstan, Cassette Cleaning UL0/UN7

Tool Required

J 39916-A CD and Cassette Diagnostic Audio Kit

The recommended cleaning method for the cassette tape player is the use of a scrubbing action, non- abrasive cleaning cassette with pads that scrub the tape head as the hubs of the cleaner cassette turn. The recommended cleaning cassette is available in the J 39916-A .

Cut Tape Detection Feature

When using a scrubbing action, non-abrasive cleaning cassette tape, it is normal for the cassette to eject. The unit is equipped with a cut tape detection feature. A cleaning cassette may appear as a broken tape.

AM-FM Stereo with Cassette Tape Player and Automatic Tone Control (UL0/UN7) (Chevrolet Venture and Oldsmobile Silhouette Vehicles)

Perform the following procedure in order to prevent the cleaning cassette from being ejected:

  1. Turn the ignition to the RUN or to the ACCESSORY position.
  2. Turn the radio to the OFF position.
  3. Press and hold the TAPE AUX button for 5 seconds.
  4. The tape symbol on the display will flash for 2 seconds.

  5. Insert the scrubbing action cleaning cassette.
  6. Eject the cleaning cassette after the manufacturer's recommended cleaning time.

When the cleaning cassette ejects, the cut tape detection feature is active again.

You may also choose a non-scrubbing action, wet-type cleaner which uses a cassette with a fabric belt in order to clean the tape head. This type of cleaning cassette will not eject on its own. A non-scrubbing action cleaner may not clean as thoroughly as the scrubbing type cleaner. The use of a non-scrubbing action, dry-type cleaning cassette is not recommended.

After you clean the player, press and hold EJECT for 5 seconds in order to reset the CLN (clean) indicator. The radio will display a series of dashes, showing that the indicator had reset.

Cassettes are subject to wear. The sound quality may degrade over time. Always ensure that the cassette tape is in good condition before you have the tape player serviced.

Cleaning Tape Head and Capstan, Cassette Cleaning UT6/UM1

Tool Required

J 39916-A CD and Cassette Diagnostic Audio Kit

The recommended cleaning method for the cassette tape player is the use of a scrubbing action, non- abrasive cleaning cassette with pads that scrub the tape head as the hubs of the cleaner cassette turn. The recommended cleaning cassette is available in the J 39916-A .

Cut Tape Detection Feature

When using a scrubbing action, non-abrasive cleaning cassette tape, it is normal for the cassette to eject. The unit is equipped with a cut tape detection feature. A cleaning cassette may appear as a broken tape.

AM-FM Stereo with Cassette Tape Player (UN6) or AM-FM Stereo with Cassette Tape Player and Equalizer (UT6/UM1) (Pontiac Trans Sport Vehicles)

Perform the following procedure in order to prevent the cleaning cassette from being ejected:

  1. Turn the ignition to the RUN or the ACCESSORY position.
  2. Turn the radio to the OFF position.
  3. Press and hold the TAPE/PLAY button for 3 seconds. The tape symbol on the display will flash for 2 seconds.

  4. Object Number: 258812  Size: MH
  5. Insert the scrubbing action cleaning cassette.
  6. Eject the cleaning cassette after the manufacturer's recommended cleaning cassette.

When the cleaning cassette ejects, the cut tape detection feature is active again.

You may also choose a non-scrubbing action, wet-type cleaner which uses a cassette with a fabric belt in order to clean the tape head. This type of cleaning cassette will not self eject. A non-scrubbing action cleaner may not clean as thoroughly as the scrubbing type cleaner. The use of a non-scrubbing action, dry-type cleaning cassette is not recommended.

After you clean the player, press and hold EJECT for 5 seconds in order to reset the CLN (clean) indicator. The radio will display a series of dashes, showing that the indicator had reset.

Cassettes are subject to wear. The sound quality may degrade over time. Always ensure that the cassette tape is in good condition before you have the tape player serviced.