GM Service Manual Online
For 1990-2009 cars only

Tools Required

    •  Stationary Glass Removal Tool
    • Urethane Adhesive Kit GM P/N 12346392 or Equivalent
    • Isopropyl Alcohol or Equivalent
    • Cartridge-type Caulking Gun
    • Commercial-type Utility Knife
    • Razor Blade Scraper
    • Suction Cups
    • Plastic Paddle

Removal Procedure


    Object Number: 893690  Size: SH
  1. Remove the high mounted stop lamp. Refer to High Mount Stop Lamp Replacement in Lighting Systems.
  2. Remove the lift gate trim panel. Refer to Liftgate Trim Panel Replacement in Body Rear End.
  3. Remove the rear wiper motor. Refer to Rear Window Wiper Motor Replacement in Wiper/Washer Systems.
  4. Caution: Always wear heavy gloves and safety glasses when handling glass to minimize the risk of injury.

    Notice: Care must be taken to avoid damaging paint around glass during removal.

  5. Disconnect the electrical connectors from the rear window defogger bus bars. Position the electrical connectors so not to damage the wiring/connectors when using the urethane power removal tool.
  6. Important: Before cutting out a stationary window, apply a double layer of masking tape around the perimeter of the painted surfaces and inner trim.

  7. Apply two 15 cm (6 in) pieces of duct tape to the top and bottom of the glass to prevent it from falling out when the urethane adhesive is cut.

  8. Object Number: 930744  Size: SH

    Caution: When using power tools that may create smoke when cutting urethane sealant, work should be done in a well ventilated area and/or with a NIOSH/MSHA Approved air supplied respirator to prevent possible harmful exposure.

    When the urethane adhesive is heated enough to give off smoke, high levels of methylene diisocyanate (MDI) may be present.

    Unprotected exposure to methylene diisocyanate (MDI) may result in severe, chronic, debilitating respiratory problems.

  9. From the inside of the lift gate, cut the urethane around the glass using a J 39032 .
  10. With the aid of an assistant, remove the lift gate window from the opening.

Installation Procedure

  1. Install the rear window into the opening. Refer to Adhesive Installation of Stationary Windows .

  2. Object Number: 893690  Size: SH
  3. Connect the rear window defogger electrical connectors to the bus bars.
  4. Install the rear wiper motor. Refer to Rear Window Wiper Motor Replacement in Wiper/Washer Systems.
  5. Install the lift gate trim panel. Refer to Liftgate Trim Panel Replacement in Body Rear End.
  6. Install the high mounted stop lamp. Refer to High Mount Stop Lamp Replacement in Lighting Systems.