GM Service Manual Online
For 1990-2009 cars only

Special Tools

J 24402-A Glass Sealant (Cold Knife) Remover or Equivalent

Removal Procedure

    Warning: Refer to Battery Disconnect Warning in the Preface section.


    Object Number: 1256758  Size: SH
  1. Disconnect the negative battery cable.
  2. Disconnect the rear window defogger electrical connector.

  3. Object Number: 1256760  Size: SH
  4. Remove the weatherstrip around the rear window.

  5. Object Number: 1256761  Size: SH
  6. Using the J 24402-A , cut the adhesive around the rear window.

  7. Object Number: 1256752  Size: SH
  8. Remove the rear window from the vehicle.
  9. Using a knife, remove the adhesive from the rear window.
  10. Using a knife, remove the adhesive from the rear window frame.

Installation Procedure


    Object Number: 1256763  Size: SH
  1. Install the new weatherstrip to the rear window.

  2. Object Number: 1256764  Size: SH
  3. Apply tape to the new weatherstrip and the rear window to hold the weatherstrip in place.
  4. Apply adhesive primer to the rear window frame and the perimeter of the rear window.

  5. Object Number: 1256765  Size: SH

    Caution: Insufficient curing of urethane adhesive may allow unrestrained occupants to be ejected from the vehicle resulting in personal injury.

       • For the moisture-curing type of urethane adhesive, allow a minimum of 6 hours at 21°C (70°F) or greater and with at least 30 percent relative humidity. Allow at least 24 hours for the complete curing of the urethane adhesive.
       • For the chemical-curing type of urethane adhesive, allow a minimum of 1 hour .
    Do NOT physically disturb the repair area until after these minimum times have elapsed.

  6. Apply glass adhesive to the rear window frame.

  7. Object Number: 1256758  Size: SH
  8. Install the rear window into the rear window frame.
  9. Reposition the tape over the weatherstrip, the rear window, and the rear window frame to hold the rear window in place.
  10. Let the adhesive dry for 24 hours.
  11. Remove the tape.
  12. Check for waterleaks by pouring water on the rear window. If a leak is found, dry the window and fill the area that leaks with adhesive. If the leak persists, remove the rear window and repeat the entire procedure.
  13. Connect the rear window defogger electrical connector.
  14. Connect the negative battery cable.