Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

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 rear window reveal molding. Refer to Rear Window Reveal Molding Replacement (Service and Repair).
2. Open the rear compartment lid in order to access the reveal molding.




3. Disconnect the rear window defogger electrical connectors.
4. Disconnect the OnStar(R) connector, if equipped.




5. Disconnect the rear window radio antenna connector.

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

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

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






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


7. 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.
* UseJ 24402-A, J 39032 or equivalent in order to remove the window.





8. With the aid of an assistant lift the rear window from the opening.


Installation Procedure

1. Install the rear window into the opening. Refer to Urethane Adhesive Installation of Stationary Windows (Service and Repair).




2. Connect the rear window defogger electrical connectors.
3. Connect the OnStar(R) connector, if equipped.




4. Install the rear window radio antenna connector.
5. Close the rear compartment lid.
6. Remove the double layer of masking tape around the perimeter of the painted surfaces and the interior trim.