GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 24402-A Glass Sealant Cold Knife Remover or Equivalent
    • J 39032 Stationary Glass Removal Tool or Equivalent
    • GM P/N 12346392 Urethane Adhesive Kit or Equivalent
    • Isopropyl Alcohol or Equivalent
    • Cartridge-type Caulking Gun
    • Commercial-type Utility Knife
    • Razor Blade Scraper
    • Rubber Suction Cups

Removal Procedure

Caution: If a window is cracked but still intact, crisscross the window with masking tape in order to reduce the risk of damage or personal injury.

Notice:  DO NOT close the lift window panel with the struts attached unless the window is installed and the window adhesive fully cured. The window adds strength and rigidity to the lift window panel. Attempting to close the lift window panel, with the struts installed, without a window or with the window adhesive not fully cured, could cause the panel to crack.

    Important: Before cutting out a stationary window, apply a double layer of masking tape around the perimeter of the painted surfaces and inner trim.

  1. Remove the rear lift window struts. Refer to Rear Compartment Lift Window Strut Replacement in Body Rear End.
  2. Caution: If broken glass falls into the defroster outlets, it can be blown into the passenger compartment and cause personal injury.

  3. Cover to protect the following parts from broken glass:
  4. 2.1. Upper dash pad
    2.2. Defroster outlets and A/C outlets
    2.3. Seats and carpeting
  5. Disconnect the rear defogger electrical connections.
  6. Disconnect the OnStar, if equipped.

  7. Object Number: 284756  Size: SH
  8. Disconnect the antenna connector from the window.

  9. Object Number: 71973  Size: SH
  10. Remove the window outer auxiliary seal.

  11. Object Number: 71238  Size: SH
  12. Remove the rear lift window panel. Refer to Rear Lift Window Panel Weatherstrip Replacement in Body Rear End.
  13. Place the panel face down on a clean protective surface.

  14. Object Number: 476333  Size: SH
  15. Remove the front weatherstrip.

  16. Object Number: 379905  Size: SH

    Caution: When working with any type of glass or sheet metal with exposed or rough edges, wear approved safety glasses and gloves in order to reduce the chance of personal injury.

    Important: The rear lift window reveal molding fills the cavities between the body and window.

    If the reveal molding is stretched or damaged, it cannot be reused. It must be replaced.

  17. Remove the rear lift window reveal molding.
  18. If the rear lift window reveal molding will not release, use a utility knife in order to cut around the window in order to remove the rear window reveal molding.


    Object Number: 71179  Size: SH

    Important: Keep the cutting edge of the tool against the window.

  19. This will allow the urethane adhesive to be separated from the window.
  20. • Leave a base of urethane on the pinchweld flange.
    • The only suitable lubrication is clear water.
    • UseJ 24402-A , J 39032 or equivalent in order to remove the window.

    Object Number: 412291  Size: SH
  21. With the aid of an assistant, use the suction cups in order to lift the rear lift window from the opening.

Installation Procedure

  1. Install a stationary window into the opening. Refer to Adhesive Installation of Stationary Windows .
  2. Remove the rear lift window struts. Refer to Rear Compartment Lift Window Strut Replacement in Body Rear End.
  3. Connect the rear defogger electrical connections.
  4. Connect the OnStar, if equipped.

  5. Object Number: 284756  Size: SH
  6. Connect the antenna connector to the window.
  7. Remove the protective coverings and tape from the vehicle and the headliner