GM Service Manual Online
For 1990-2009 cars only

Liftgate Window Replacement Buick

Tools Required

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

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.

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

  1. Remove the rear wiper motor. Refer to Rear Window Wiper Motor Replacement in Wipers/Washer Systems.
  2. Remove the center light applique.

  3. Object Number: 379401  Size: SH
  4. Disconnect the rear liftgate window defogger connectors from the right and the left sides.
  5. Tape off and protect the inner edges of the rear window defogger grid lines from the window removal tool.

  6. Object Number: 387090  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: Keep the cutting edge of the tool against the window. Inspect the depth of the cutting blade before starting.

  7. Separate the urethane adhesive from the window:
  8. • Leave a base of urethane on the pinchweld flange.
    • The only suitable lubrication is clear water.
    • Use J 24402-A , J 39032 or equivalent in order to remove the window.

    Object Number: 768861  Size: SH
  9. With the aid of an assistant, remove the liftgate window from the liftgate.
  10. Place the liftgate window (2) face up on a soft protective cover.

Installation Procedure

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

  2. Object Number: 379401  Size: SH
  3. Connect the rear liftgate window defogger connectors to the right and left sides.
  4. Install the center light applique.
  5. Install the rear wiper motor. Refer to Rear Window Wiper Motor Replacement in Wipers/Washer Systems.
  6. Remove the double layer of masking tape around the perimeter of the painted surfaces and the interior trim.
  7. Close the liftgate.