Tools Required

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.

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.

Caution: At least 24 hours are required for complete curing of repair material. The repair area should not be physically distrubed until after that time. Insufficient curing of urethane adhesive may allow unrestrained occupants to be ejected from the vehicle resulting in personal injury.

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.

1. Mask off the area around the rear window to protect painted surfaces and headliner, and to aid in cleanup after installation.
2. Remove the rear window reveal molding. Refer to Rear Window Reveal Molding Replacement .



3. Disconnect the rear window defogger left electrical connector, if equipped.



4. Disconnect the rear window defogger right electrical connector, if equipped.



5. Disconnect the rear window radio antenna connector, if equipped.
6. Using a utility knife, make a preliminary cut around perimeter of the rear window, staying as close to edge of the rear window as possible.



7. Cut out rear the window keeping blade as close to edge of the rear window as possible using J 24402-A Glass Sealant Remove Knife or J 39032 Stationary Glass Removal Tool.



8. With aid of a helper use suction cups to lift the rear window from the opening.
9. The following components may reveal the causes of a broken rear window:

•	The flange of the rear window opening

•	The rear window reveal molding

•	The rear window

10. Look for any of the following conditions in order to prevent damage to the rear window:

•	A high weld

•	Solder spots

•	Hardened spot weld sealer

•	Any 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 repairs to the paint are required, mask the flange bonding area prior to the application of the color coat in order to provide a clean primer only surface. Use material such as BASF DE17®, DuPont 2610®, and PPG DP40®.

11. After repairing the opening as indicated, perform the following steps:
12. Inspect the condition of the rear window opening and the adhesive bead in order to determine which installation method you will use. Refer to Short Method Description or Extended Method Description .
13. Remove no more of the rear window urethane adhesive than necessary in order to maintain the original shape. This will ensure the proper clearance between the rear window and the pinchweld flange of the opening.
14. Clean around the edge of the inside surface of the rear window with one of the following cleaners:

•	GM Glass Cleaner P/N 1050427.

•	A clean isopropyl alcohol dampened cloth.

After repairing the opening as indicated, perform the following:

1. Shake the pinchweld primer (#3 black) well.



2. Use a new dauber to apply the primer (#1) to the primed surface (1) of the flange in the bonding area.
3. Allow the primer to dry for approximately 10 minutes.



4. Install the rear window reveal molding. Refer to Rear Window Reveal Molding Replacement .
5. With the aid of an assistant, dry fit the rear window in the opening in order to determine the correct way to position the rear window in the opening.



6. Use masking tape (1) in order to mark the location of the window in the opening.
7. Slit the masking tape at the top edge of the rear window.
8. Remove the window from the opening.
9. Place the window inside up on a clean, protected surface.
10. If the original rear window is being reused, remove all but a thin film of the existing urethane adhesive from the surface using a utility knife.
11. Clean the inside surface of the rear window with GM Glass Cleaner P/N 1050427.
12. If the extended method is being performed do the following:

12.1.

Remove all but approximately 2 mm (3/64 in) of the existing bead of adhesive from the pinchweld flange.

12.2.

Do not remove all traces of the adhesive, but all mounds or loose pieces should be removed.

12.3.

Shake the pinchweld primer (#3 black) well.

12.4.

Use a new dauber to apply the primer to the primed surface of the flange in the bonding area.

12.5.

Allow the primer to dry for approximately 10 minutes.

Important: Use care when applying the window prep (#1 clear) in order to prevent the window prep from running into the vision area of the window. This primer dries almost instantly, but may stain the viewing area of the window if not applied evenly.

13. Apply prep number (#1 clear).



14. Use a new dauber in order to apply window prep (#1 clear) to the area approximately 10 mm to 16 mm (3/8 in to 5/8 in). around the entire perimeter of the window inner surface.
15. Apply glass prep number (#1 clear) to any exposed edges of the window.
16. Wipe the primed area immediately with a lint free cloth.
17. Shake windshield primer number (#2 black) well.



18. Use a new dauber in order to apply the primer (#2 black) to the same areas (2) that window prep (#1 clear) was applied.
19. Allow the primer to dry for approximately 10 minutes.



20. Cut the tip of the applicator nozzle as follows:

20.1.

If you use the short method, cut the tip of the applicator nozzle in order to provide a bead of 6.0 mm (1/4 in).

20.2.

If you use the extended method, cut the applicator nozzle in order to provide a bead of approximately 12.7 mm (1/2  in) wide and 12.7 mm (1/2 in) high.




21. Use a cartridge type caulking gun to apply a smooth, continuous bead of urethane adhesive around the edge of the window where the primer was applied.
22. When using the short method, apply the urethane adhesive to the existing bead of urethane adhesive on the body.



23. When using the extended method, use the edge of the window or the inside edge of the reveal molding (1) as a guide for the nozzle in order to apply the urethane adhesive (2) to the inner surface of the rear window.



24. Use rubber suction cups, along with the aid of an assistant to install the rear window into the opening.



25. Align the tape lines on the window and the body.
26. Press the rear window firmly into place.
27. Tape the window to the body in order to minimize movement.
28. Clean any excess urethane adhesive on the body.



29. Use a soft spray in order to watertest the window immediately.

Warm or hot water is preferred in order to accelerate the cure of the adhesive.

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

30. Inspect the window for leaks:

If any leaks are found, use a plastic paddle to apply extra urethane adhesive at the leak point.

31. Retest the window for leaks.

Important: Use the following procedure in order to properly cure the urethane adhesive.

•	Allow the vehicle to remain at room temperature 21°C (70°F) at 30 percent relative humidity.

•	Allow a minimum of 6 hours for the moisture curing urethane adhesive.

•	Allow a minimum of 1 hour to 1 1/2 hours for the chemical curing urethane adhesive.

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

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

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



33. Install the rear window defogger right electrical connector, if equipped.



34. Install the rear window defogger left electrical connector, if equipped.



35. Install the rear window radio antenna connector, if equipped.
36. Remove any protective tape from around the rear window.
37. Clean the surface of the rear window by wiping with a clean, dampened cloth using GM Window Cleaner GM P/N 1050427 or isopropyl alcohol, then allowing to air dry.