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.
- Open the hood.
- Remove the windshield
wiper arms and blades. Refer to
Windshield Wiper Arm Replacement
in Wipers/Washer Systems.
- Remove the air inlet grille. Refer to
Air Inlet Grille Panel Replacement
in Body Front End.
- Remove the rearview mirror. Refer to
Inside Rearview Mirror Replacement
.
- Remove the windshield garnish moldings. Refer to
Windshield Pillar Garnish Molding Replacement
in Interior Trim.
Caution: If broken glass falls into the defroster outlets, it can be blown into
the passenger compartment and cause personal injury.
- Cover the defroster openings.
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: The windshield reveal molding fills the cavities between the body and
windshield and can not be reused if stretched or damaged.
Remove the windshield reveal molding.
- Grasp the lower corner of the windshield reveal molding by hand and
slowly pull the reveal molding away from the windshield.
- If the windshield reveal
molding will not release, use a utility knife in order to cut around the windshield
in order to remove the windshield reveal molding.
Important: Keep the cutting edge of the tool against the windshield. This will
allow the urethane adhesive to be separated from the windshield. Leave a
base of urethane on the pinchweld flange. The only suitable lubrication
is clear water.
- Use J 24402-A
or J 39032
in order to remove the
windshield.
- Remove the windshield
from the vehicle with the aid of an assistant.
- 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.
- Inspect the following components for the causes of a broken windshield:
• | The flange of the windshield opening |
• | The windshield reveal molding |
- Inspect for any of the following problems in order to help prevent
future breakage of the windshield:
• | 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 required, the pinchweld flange must be refinished in order
to restore the bonding area strength. If paint repairs are required,
mask the flange bonding area prior to applying 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.
|
- After repairing the opening as indicated, perform the following
steps:
4.2. | Remove no more of the urethane adhesive from the pinchweld than
necessary in order to maintain the original shape. This will ensure the proper
clearance between the windshield and the pinchweld flange. |
4.3. | Remove all traces of broken glass from the outer cowl panel, seats,
floor and defroster ducts. |
4.4. | Clean around the edge of the inside surface of the windshield
with a 50/50 mixture of isopropyl alcohol and water by volume on a dampened
lint free cloth. |
- After repairing the opening as indicated, shake the pinchweld
primer (black #3) for at least one 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.
- Use a new dauber to apply the pinchweld primer (black #3) to
the surface (1) of the bonding area on the body only.
- Allow the primer to dry for approximately 10 minutes. Ensure
that all nicks and scratches are covered.
- If you are using the extended
method, install the spacers and the VIN plate filler strip.
- Install the reveal molding
to the edge of the windshield. If the original reveal molding is damaged it
must be replaced.
- Install a new acoustic strip if needed.
- With the aid of an assistant,
dry fit the windshield in the opening in order to determine the correct way
to position the windshield in the opening.
- Use masking tape (1) in
order to mark the location of the windshield in the opening.
- Slit the masking tape at the top edge of the windshield.
- With the aid of assistant and using suction cups remove the windshield
from the opening.
- Place the windshield inside up on a clean, protected surface.
- If the original windshield is being reused remove all but a thin
film of the existing urethane adhesive from the windshield surface by using
a clean utility knife or razor blade scraper.
Important: Do not remove all traces of the adhesive. Remove all mounds or loose
pieces of urethane adhesive.
- 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.
- Clean around the edge of the inside surface of the windshield
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.
- Shake the pinchweld primer (black #3) for at least one minute.
- Use a new dauber to apply the primer to the surface of the pinchweld
flange.
- Allow the pinchweld primer to dry for approximately 10 minutes.
Important: Use care when applying the glass prep (clear #1) to the windshield.
This primer dries almost instantly, and may stain the viewing area of the
windshield if not applied evenly.
- Use a new dauber in order to apply glass prep (clear #1) 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.
- Apply a second coat of the glass prep number (clear #1)
to the same area of the glass.
- Wipe the primed glass area immediately with a clean lint free
cloth.
- Shake the glass primer (black #2) for at least one minute.
- Use a new dauber in order
to apply the glass primer (black #2) to the same areas that glass
prep (clear #1) was applied. The glass primer (black #2)
is good up to 8 hours after applying it to the glass. The primed surface
(2) of the glass (1) must remain clean.
- Allow the glass primer to dry for approximately 10 minutes.
- 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).
- If using the extended method, cut the applicator nozzle in order
to provide a bead of 12.7 mm (1/2 in) wide and 12.7 mm
(1/2 in) high.
- Use a cartridge type caulking
gun to apply a smooth, continuous bead of urethane adhesive.
- When using the short method, apply the urethane adhesive to the
existing bead of urethane adhesive on the body.
- When using the extended
method, use the edge of the windshield window or the inside edge of the reveal
molding as a guide for the nozzle in order to apply the urethane adhesive
(1) to the inner surface of the windshield window (3).
If applying urethane adhesive to the inside edge of the windshield reveal
molding (1) use the windshield reveal molding as a guide for the nozzle.
- With the aid of an assistant,
use suction cups in order to install the windshield into the opening.
- Align the tape lines (1)
on the windshield and the body.
- Press the windshield firmly into place.
- Tape the windshield to the body in order to minimize movement
until the urethane adhesive cures.
- Clean any excess urethane
adhesive from the body.
Important: Do not direct a hard stream of high pressure water to the freshly applied
urethane adhesive.
- Use a soft spray of warm water in order to immediately water test the
windshield window.
- Inspect the windshield for leaks.
- If any leaks are found, use a plastic paddle in order to apply
extra urethane adhesive at the leak point.
- 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.
- 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. |
- Install the windshield garnish molding . Refer to
Windshield Pillar Garnish Molding Replacement
in Interior Trim.
- Install the air inlet grille. Refer to
Air Inlet Grille Panel Replacement
in Body Front End.
- Install the windshield wipers arms and blades. Refer to
Windshield Wiper Arm Replacement
in Wipers/Washers Systems.
- Install the rearview mirror. Refer to
Inside Rearview Mirror Replacement
.
- Remove the protective coverings and tape from the vehicle and
the headliner.
- Close the hood.