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.

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

Tools Required

J 24402-A Glass Sealant Remover (Cold Knife)

1. Apply masking tape to the painted surfaces around the windshield in order to prevent damage to the paint.
2. Cover the defroster openings.
3. Remove the windshield wipers arms and blades. Refer to Wiper Arm Replacement in Wiper/Washer Systems.
4. Remove the air inlet grille. Refer to Air Inlet Grille Panel Replacement .
5. Remove the rearview mirror. Refer to Inside Rearview Mirror Replacement .
6. Remove the windshield garnish molding . Refer to Garnish Molding Replacement - Upper .
7. Remove the windshield side reveal molding. Refer to Windshield Side Reveal Molding Replacement .
8. Remove the windshield upper reveal molding. Refer to Windshield Upper Reveal Molding Replacement .



9. Using a razor or utility knife, make a preliminary cut around the perimeter of the windshield. Cut as close to the edge of the windshield as possible.




Important: Keep the cutting edge of the tool against the windshield. This separates the urethane adhesive from the windshield.

10. Cut out the windshield keeping the blade as close to edge of windshield as possible using the J 24402-A .



11. With the aid of an assistant, remove the windshield.
12. The following components may reveal the causes of a broken windshield:

•	The flange of the windshield opening

•	The windshield reveal molding

•	The windshield

13. Look for any of the following conditions in order to prevent damage to the windshield:

•	A high weld

•	Solder spots

•	Hardened spot weld sealer

•	Any obstruction or irregularity in the pinchweld flange

14. Inspect the condition of the windshield opening and the adhesive bead in order to determine which installation method you will use. Refer to Short Method Description or Extended Method Description .

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®.

15. After repairing the opening as indicated, perform the following steps:
16. Thoroughly shake the primers that are provided in urethane adhesive kit GM P/N 12346284, or equivalent.
17. Clean the windshield and pinchweld flange with a clean, dampened cloth using GM Window Cleaner GM P/N 1050427, or isopropyl alcohol, in order to clean the surface of the windshield and the pinchweld flange of the excess urethane adhesive.



18. Use a new dauber to apply the pinchweld primer (Black #3) to the primed surface on the pinchweld flange and to any exposed painted surfaces or any scratches in the metal in the bonding area.
19. Allow approximately 10 minutes drying time for the pinchweld primer (Black #3).

1. With the aid of an assistant, dry fit the window in the opening in order to determine the correct position.



2. Use masking tape in order to mark the location of the windshield in the opening.
3. Slit the masking tape at the top edge of the windshield.



4. With the aid of an assistant remove the windshield.
5. Place the windshield inside up on a clean, protected surface.
6. If the you reuse the original window, remove all but a thin film of the existing urethane adhesive from the window surface, using a utility knife or equivalent.
7. Clean the inside surface of the windshield with GM Glass Cleaner P/N 1050427, or the equivalent.
8. If the extended installation method is being performed:

8.1.	Remove all but a thin film of the existing bead of adhesive from the pinchweld flange.

8.2.	It is not necessary to remove all the traces of the urethane adhesive, but there should not be any mounds or loose pieces of the adhesive.

8.3.	Thoroughly shake the pinchweld primer (#3 black).

8.4.	Use a new dauber in order to apply the pinchweld primer (#3 black) to exposed painted surfaces or scratches in the pinchweld flange in the bonding area.

8.5.	Allow approximately 10 minutes drying time for the pinchweld primer (#3 black).




9. Install a new windshield upper reveal molding.

Important: Use care when applying the windshield prep (#1 clear) in order to prevent the windshield prep (#1 clear) from running into the vision area of the windshield. This windshield prep (#1 clear) may stain the view area of the windshield. This windshield prep (#1 clear) dries almost instantly.




10. Using a new dauber, apply windshield prep (#1 clear) to an area approximately 10-16 mm (3/8-5/8 in) around the entire perimeter of the windshield inner surface and to any exposed edges of the window.
11. Immediately wipe the primed area with a clean cloth.



12. Thoroughly shake the windshield primer (#2 black).
13. Using a new dauber, apply the windshield primer (#2 black) to the same areas where you applied the windshield prep (#1 clear).
14. Allow approximately 6 minutes for drying the windshield primer (#2 black).



15. Prior to application of the urethane adhesive, cut the tip of the applicator nozzle in order to provide the following bead sizes:

•	For the short method, cut the tip in order to provide an adhesive bead of approximately 4.5 mm (1/8-3/16 in).

•	For the extended method, cut the tip in order to provide an adhesive bead of approximately 14 mm (9/16 in).




16. Using a cartridge-type caulking gun, apply a smooth continuous bead of urethane adhesive.
17. When using the short installation method, apply the urethane adhesive to the existing bead of urethane adhesive on the body.



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



19. With the aid of an assistant, use rubber suction cups in order to install the window in the opening.



20. Align the tape on the windshield and on the body.
21. Firmly press the windshield into place in order to wet-out and seat the urethane adhesive.



22. Tape the windshield to the body in order to minimize movement until the urethane adhesive cures.
23. Remove any excess urethane adhesive.

Important: Warm or hot water accelerates the cure of the adhesive. Do not direct a hard stream of high pressure water at the fresh urethane adhesive.

24. Use a soft spray of warm water in order to immediately water test the windshield.
25. Inspect the windshield for leaks.
26. If you found any leaks, use a plastic paddle in order to apply extra urethane at the leak point.
27. Complete the following steps in order to properly cure the urethane adhesive:

•	Keep the vehicle at a room temperature of 22° C (72° F) at 30 percent relative humidity.

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

•	Allow a minimum of (1 to 1½ hours) for the chemical curing urethane adhesive.

•	Partially lower a door window in order to prevent pressure build-ups when you close doors prior to the urethane adhesive cure.

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

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

28. Install the windshield side reveal molding. Refer to Windshield Side Reveal Molding Replacement .
29. Install the windshield garnish molding . Refer to Garnish Molding Replacement - Upper .
30. Install the air inlet grille. Refer to Air Inlet Grille Panel Replacement .
31. Install the windshield wipers arms and blades. Refer to Wiper Arm Replacement
32. Install the rearview mirror. Refer to Inside Rearview Mirror Replacement .
33. Remove the protective tape and the coverings from the windshield area .
34. Wipe the windshield area with a clean, dampened cloth using GM Window Cleaner GM P/N 1050427 or isopropyl alcohol in order to clean the surface of the windshield of the excess urethane adhesive.

Allow the surface to air dry.