Back Window Glass: Service and Repair

Rear Window Replacement

Tools Required
* J 24402-A Glass Sealant Cold Knife Remover
* J 39032 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

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 inner trim.

1. Remove the lower garnish molding and the rear compartment front side trim panel for access to the inside of the window.

Caution: Refer to Defroster Outlet Caution in Service Precautions.

2. Cover to protect the following parts from broken glass:

1. Upper dash pad
2. Defroster outlets and A/C outlets
3. Seats and carpeting

3. Disconnect the rear window defogger connectors at the window.
4. Disconnect the OnStar, if equipped.






Caution: Refer to Glass and Sheet Metal Handling Caution in Service Precautions.

Important: The rear 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.

5. Remove the rear window reveal molding.
If the 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.






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

6. This will allow the urethane adhesive to be separated from the window.

* Leave a base of urethane on the pinchweld flange.
* The only suitable lubrication is clear water.
* Use, or equivalent in order to remove the window.




7. With the aid of an assistant, use the suction cups in order to lift the rear window from the opening.

Installation Procedure

1. Install a stationary window into the opening.
2. Install the lower garnish molding and the rear compartment front side trim panel.
3. Connect the rear window defogger connections.
4. Connect the OnStar, if equipped.
5. Remove the double layer of masking tape around the perimeter of the painted surfaces and the interior trim.