GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 24402-A Glass Sealant Cold Knife Remover
    • J 39040 Quarter Window Remover
    • 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

    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 window, apply a double layer of masking tape around the perimeter of the painted surfaces and interior trim.

  1. Remove the window lower garnish molding. Refer to Rear Window Lower Garnish Molding Replacement in Interior Trim.
  2. Remove both rear seat headrests (extended cab), by squeeze the tabs inward, located under the headrests.
  3. Lower rear seat back.
  4. Caution: If broken glass falls into the defroster outlets, it can be blown into the passenger compartment and cause personal injury.

  5. Cover to protect the following parts from broken glass:
  6. 4.1. Upper dash pad.
    4.2. Defroster outlets and A/C outlets.
    4.3. Seats and carpeting.

    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.

  7. Using a sharp utility knife, make a preliminary cut around the perimeter of the window. Cut as close to edge of the window as possible.

  8. Object Number: 379881  Size: SH

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

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

  12. Object Number: 379906  Size: SH
  13. With the aid of an assistant, remove the window from the opening.

Installation Procedure

  1. Install the rear window into the opening. Refer to Adhesive Installation of Stationary Windows .
  2. Install the window lower garnish molding. Refer to Rear Window Lower Garnish Molding Replacement in Interior Trim.
  3. Install both rear seat headrests (extended cab). Insert the headrest to the headrest guide and push downward.
  4. Raise the rear seat back.
  5. Remove the double layer of masking tape around the perimeter of the painted surfaces and the interior trim.