Tools Required

Notice:  DO NOT close the lift window panel with the struts attached unless the window is installed and the window adhesive fully cured. The window adds strength and rigidity to the lift window panel. Attempting to close the lift window panel, with the struts installed, without a window or with the window adhesive not fully cured, could cause the panel to crack.

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

1. Remove the rear lift window struts. Refer to Rear Compartment Lift Window Strut Replacement in Body Rear End.
2. Disconnect the rear defogger electrical connections.



3. Disconnect the antenna connectors at the window.



4. Remove the window outer auxiliary seal.



5. Remove the rear lift window panel. Refer to Rear Lift Window Panel Weatherstrip Replacement in Body Rear End.
6. Place the panel upside down on a clean protective surface.



7. Remove the front weather-strip.




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

8. Use the J 24402-A or J 39032 in order to cut the rear lift window from the pinchweld flange. Do this from inside the vehicle in order to protect the outer paint surface.



9. With the aid of an assistant lift the from the opening.

1. Verify 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.

2. Inspect the following components for the causes of a broken :

•	The flange of the opening

•	The rear lift window reveal molding

3. Inspect for any of the following problems in order to help prevent future breakage of the rear lift 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 NP70® and Martin-Semour 5120 and 5130® products are approved for this application.

4. After repairing the opening as indicated, perform the following steps:
5. Inspect the condition of the rear lift 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 the guidelines.
6. Remove all traces of broken glass from the vehicle.
7. Clean around the edge of the inside surface of the rear lift window with a 50/50 mixture of isopropyl alcohol and water by volume on a dampened lint free cloth.
8. 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.

9. Use a new dauber to apply the pinchweld primer (black #3) to the surface of the bonding area.
10. Allow the primer to dry for approximately 10 minutes. Ensure that all nicks and scratches are covered.



11. Install the inner seal to the rear of the lift window opening, if removed.

11.1.

Remove the protective film from the seal.

11.2.

Start flush at a forward edge of one side of the panel and work around to the opposite side edge.

11.3.

Trim any excess length of the seal flush to the side of the panel.

11.4.

Roll the entire length of the seal to ensure adhesive contact.




12. Install the front seal to the rear lift window panel. Refer to Rear Lift Window Panel Weatherstrip Replacement in Body Rear End.



13. With the aid of an assistant, dry fit the rear lift window in the opening in order to determine the correct way to position the rear lift window in the opening.
14. Use masking tape in order to mark the location of the rear lift window in the opening.
15. Slit the masking tape at the top edge of the rear lift window.



16. With the aid of an assistant remove the rear lift window.
17. Place the rear lift window inside up on a clean, protected surface.
18. If the original rear lift window is being reused, remove all but approximately 2 mm (3/64 in) of the existing urethane adhesive from the rear window surface, using a utility knife or razor blade scraper.

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

19. If the extended method is being used remove all but approximately 2 mm (3/64 in) of the existing bead of adhesive from the pinchweld flange.
20. Clean around the edge of the inside surface of the rear lift window with a 50/50 mixture of isopropyl alcohol and water by volume on a dampened lint free cloth.

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.

21. Shake the pinchweld primer (black #3) for at least 1 minute.
22. Use a new dauber to apply the primer to the surface of the pinchweld flange.
23. Allow the pinchweld primer to dry for approximately 10 minutes.
24. If the extended method is being performed, do the following:




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

25. Shake the rear window primer (black #2) for at least 1 minute.



26. Use a new dauber, in order to apply the rear window primer (black #2) to the areas of the rear lift window (1) to which prep (clear #1) was applied.
27. Allow the primer to dry for approximately 10 minutes.



28. If using the short method, cut the tip of the applicator nozzle in order to provide a bead of 6.0 mm (1/4 in).
29. If using the extended method, cut the applicator nozzle in order to provide a bead 10.5 mm (0.14 in) wide and 10.5 mm (0.14 in) high.



30. Use a cartridge-type caulking gun, apply a smooth continuous bead of new urethane adhesive around the edge of the rear lift window where the primer was applied.
31. When using the short method, apply the urethane adhesive to the existing bead of urethane adhesive on the body.



32. When using the extended method, use the edge of the rear lift window or the inside edge of the reveal molding as a guide for the nozzle in order to apply the urethane adhesive to the inner surface of the rear lift window.



33. With the aid of an assistant, use the suction cups in order to install the rear lift window into the opening.
34. Align the tape on the rear lift window and on the body.
35. Press the rear lift window firmly into place in order to wet-out and seat the urethane adhesive.
36. Tape the rear lift window in places to the body in order to minimize movement until the urethane adhesive cures.



37. Clean any excess urethane adhesive from the body.




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

38. Use a soft spray of warm water in order to immediately water test the rear lift window.
39. Inspect the rear lift window for leaks.
40. If any leaks are found, use a plastic paddle in order to apply extra urethane at the leak point.
41. Retest the rear lift window 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.
42. The following conditions must be maintained to properly cure the urethane.

42.1.

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

42.2.

Do not drive the vehicle until the urethane adhesive is cured. Refer to the above curing times.

42.3.

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




43. Remove the rear lift window struts. Refer to Rear Compartment Lift Window Strut Replacement in Body Rear End.
44. Connect the rear defogger electrical connections.



45. Connect the antenna connection.
46. Remove the protective coverings and tape from the vehicle and the headliner