Liftgate 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 the interior trim.


1. Remove the rear door trim panels in order to gain access the rear window removal. Refer to Trim Panel Replacement - Rear Door - Left (Trim Panel Replacement - Rear Door - Left) , or to Trim Panel Replacement - Rear Door - Right (Trim Panel Replacement - Rear Door - Right) in Body Rear End.

Caution: If broken glass falls into the defroster outlets, it can be blown into the passenger compartment and cause personal injury.

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

* Upper dash pad
* Defroster outlets and A/C outlets
* 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.


Important: The window reveal molding is a one piece molding and fills the cavities between the body and window.


3. If the window reveal molding is stretched or damaged it can not be reused.
Remove the window reveal molding.

1. Grasp the lower corner of the window reveal molding by hand and slowly pull the reveal molding away from the window.
2. If the window reveal molding will not release, use a utility knife in order to cut around the window in order to remove the window reveal molding.






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


4. 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 J 24402-A , J 39032 or equivalent in order to remove the window.





5. 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. Refer to Urethane Adhesive Installation of Stationary Windows (Removal and Replacement) .
2. Install the rear door trim panels which were removed in order to gain access to the rear window removal. Refer to Trim Panel Replacement - Rear Door - Left (Trim Panel Replacement - Rear Door - Left) , or to Trim Panel Replacement - Rear Door - Right (Trim Panel Replacement - Rear Door - Right) in Body Rear End.
3. Remove the double layer of masking tape around the perimeter of the painted surfaces and the interior trim.