Tools Required

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

1. Remove the rear window garnish moldings. Refer to Quarter Panel Upper Applique Replacement in Exterior Trim.
2. Remove the body side trim panel, for extended cab pickup only. Refer to Body Side Trim Panel Replacement in Interior Trim.

Important: If you will reuse the glass, do not use J 24402-A because the molding may be damaged.

Important: The stationary window reveal molding retains the urethane adhesive in the cavity between the body and the opening. If the stationary window reveal molding is damaged by cutting too close to the window surface, replace the window.

3. If the glass is already broken, use J 24402-A in order to remove the window.

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.

4. Use safety glasses and gloves.




Important: Keep the cutting edge of the tool against the rear window . This will allow the urethane adhesive to be separated from the rear window. Leave a base of urethane on the pinchweld flange. The only suitable lubrication is clear water.

5. Use J 24402-A or J 39032 in order to cut the window from the pinchweld flange. Do this from inside the vehicle in order to protect the outer surface of the paint.
6. With the aid of an assistant, use the suction cups in order to lift the rear window from the opening.
7. Verify that all primers and urethane adhesive are within expiration dates.

Caution: When replacing stationary windows, use Urethane Adhesive Kit GM P/N 12346392 (Canadian P/N 10952983), or a urethane adhesive system meeting GM Specification GM3651G, to maintain original installation integrity. Failure to use the urethane adhesive kit will result in poor retention of the window which may allow unrestrained occupants to be ejected from the vehicle resulting in personal injury.

8. Inspect the following components for the causes of a broken rear window:

•	The flange of the window opening

•	The window reveal molding

9. Inspect for any of the following problems in order to help prevent future breakage of the window:

•

High weld

•	Solder spots

•	Hardened spot weld sealer

•	Any other obstruction or irregularity in the pinchweld flange.

Important: If corrosion of the pinchweld flange is present, or if sheet metal repairs or replacements are necessary, refinish the pinchweld flange in order to present a clean primer only surface. If paint repairs are required, mask the flange bonding area prior to the application of the color coat in order to provide a clean primer only surface. Materials such as BASF DE17®, DuPont 2610®, Sherwin-Williams PSE 4600 and NP 70 and Martin-Semour 5120 and 5130 products are approved for this application.

1. Inspect the condition of the rear window opening and the urethane adhesive bead in order to determine which installation method you will use. Refer to Short Method Description or Extended Method Description for guidelines.
2. Remove all traces of broken glass from the vehicle.
3. Clean around the edge of the inside surface of the rear window with a 50/50 mixture of isopropyl alcohol and water by volume on a dampened lint-free cloth.
4. After repairing the opening as indicated, shake the pinchweld primer (black #3) for at least 1 minute.




Caution: Failure to prep the area prior to the application of primer may cause insufficient bonding of urethane adhesive. Insufficient bonding of urethane adhesive may allow unrestrained occupants to be ejected from the vehicle resulting in personal injury.

5. Use a new dauber in order to apply the pinchweld primer (black #3) to the surface (1) of the bonding area on the body only. Cover all nicks and scratches.
6. Allow the primer to dry for approximately 10 minutes.



7. With the aid of an assistant, determine the correct way to position the rear window in the opening. Do NOT adhere the window to the opening at this time.
8. Use masking tape in order to mark the location of the rear window in the opening.
9. Slit the masking tape at the top edge of the rear window.
10. With the aid of an assistant, use suction cups in order to remove the rear window from the opening.
11. Place the rear window with the inside facing up on a clean, protected surface.

Important: Do not remove all traces of the adhesive. Remove all mounds or loose pieces of urethane adhesive .

12. If you are reinstalling the original window, remove all but a thin film of the existing urethane adhesive from the window surface using a utility knife or razor blade scraper.
13. For the extended method, remove all but approximately 2 mm (3/64 in) of the existing bead of adhesive from the pinchweld flange.
14. Clean around the edge of the inside surface of the window with a 50/50 mixture of isopropyl alcohol and water by volume on a dampened lint-free cloth.
15. Shake the pinchweld primer (black #3) for at least 1 minute.

Important: Do not apply the (black #3) primer to the existing bead of the urethane adhesive. Apply the primer only to nicks, scratches or the primed surfaces.

16. Use a new dauber to apply the primer to the surface of the pinchweld flange.
17. Allow the glass primer to dry for approximately 10 minutes.




Important: Apply the prep (clear #1) carefully to the rear window. This primer dries almost instantly and may stain the viewing area of the rear window if not applied evenly.

18. If you are using the extended method, perform the following steps:

•	For a new non-encapsulated window:

-	Use a new dauber, to apply the rear window prep (clear #1) to an area approximately 10-16 mm (3/8-5/8 in) around the entire perimeter of the rear glass inner surface.

-	Apply the rear window prep (clear #1) to the same area of the glass.

-	Wipe the primed window area immediately with a lint-free cloth.

-	Shake the glass primer (black #2) for at least 1 minute.

•	For a new encapsulated window:

-	Use a new dauber, to apply the rear window prep (clear #1) to an area approximately 10-16 mm (3/8-5/8 in) around the entire perimeter of the rear glass inner surface. Install the glass within 8 hours after applying the primer to the glass.

-	The primed surface of the glass must be kept clean.

-	Allow the glass primer to dry for approximately 10 minutes.




19. Shake the rear window primer (black #2) for at least 1 minute.
20. Using a new dauber, apply the rear window primer (black #2) to the same areas of the rear window (1) which you have prepped.
21. Allow the primer to dry for approximately 10 minutes.



22. Cut the tip of the applicator nozzle.

•	If using the short method, provide a bead of 6.0 mm (1/4 in).

•	If using the extended method, provide a bead 10.5 mm (0.14 in).

23. Using a cartridge-type caulking gun, apply a smooth continuous bead of new urethane adhesive around the primed inner surface of the rear window. Refer to one of the following procedures.



24. When using the short method, apply the urethane adhesive to the existing bead of urethane adhesive on the body.



25. When using the extended method, use the edge of the rear window or the inside edge of the reveal molding as a guide for the nozzle.



26. With the aid of an assistant, use the suction cups in order to install the rear window into the opening.
27. Align the tape on the rear window and on the body.
28. Press the rear window firmly into place in order to seat the urethane adhesive.
29. Tape the rear window in places to the body in order to minimize movement until the urethane adhesive cures.



30. Clean any excess urethane adhesive from the body.

Important: Do not direct a hard stream of high pressure water at the fresh applied urethane adhesive.

31. Use a soft spray in order to watertest the windshield immediately. Warm water will accelerate the curing of the urethane adhesive.
32. Inspect the windshield for leaks.
33. If you find any leaks, apply extra urethane adhesive at the leak point with a plastic paddle.
34. Retest the windshield for leaks.

Caution: Insufficient curing of urethane adhesive may allow unrestrained occupants to be ejected from the vehicle resulting in personal injury.

•	For the moisture-curing type of urethane adhesive, allow a minimum of 6 hours at 21°C (70°F) or greater and with at least 30 percent relative humidity. Allow at least 24 hours for the complete curing of the urethane adhesive.

•	For the chemical-curing type of urethane adhesive, allow a minimum of 1 hour .

Do NOT physically disturb the repair area until after these minimum times have elapsed.
35. Maintain the following conditions in order to properly cure the urethane:

35.1.

Partially lower a door window in order to prevent pressure buildups when closing doors before the urethane adhesive cures.

35.2.

Do not drive the vehicle until the urethane adhesive is cured.

35.3.

Do not use compressed air in order to dry the urethane adhesive.

36. Install the body side trim panel, for extended cab pickup only. Refer to Body Side Trim Panel Replacement in Interior Trim.
37. Install the rear window garnish moldings. Refer to Quarter Panel Upper Applique Replacement in Exterior Trim.
38. Remove the protective coverings and tape from the vehicle and the headliner.