Important: Before cutting out a stationary window, apply a double layer of masking
tape around the perimeter of the painted surfaces and inner trim around
the window.
- Remove the windshield wiper arms. Refer to
Windshield Wiper Blade Replacement
in Wipers/ Washer Systems.
Caution: If broken glass falls into the defroster outlets, it can be blown into
the passenger compartment and cause personal injury.
- Remove the rearview mirror. Refer to
Inside Rearview Mirror Replacement
.
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.
- Use safety glasses and gloves.
Important: The windshield reveal molding fills the cavities between the body and
windshield and cannot 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, cut around the windshield with a utility knife
in order to remove the molding.
- Remove the lower windshield supports (1) from the cowl panel,
if equipped.
Important: Keep the cutting edge of the tool against the windshield. This allows
the urethane adhesive to separate 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.
Keep the cutting edge of the tool against the window
when cutting around the stationary window to achieve the best cut.
- With the aid of an assistant
remove the windshield from the vehicle.
- 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.
- Inspection of the following components may reveal 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 |
| 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.
|
• | Any other obstruction or irregularity in the pinchweld flange |
- 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 primed (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.
- Install the lower windshield supports (1) to the cowl panel,
if equipped.
- Install the spacers and
the VIN plate filler strip if you use the extended method.
- Install the reveal molding
to the edge of the windshield. If the original reveal molding is damaged
replace the molding.
- Install a new acoustic strip, if needed.
- With the aid of an assistant,
dry fit the windshield into the opening. This will determine the correct
position of 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, remove the windshield from the opening
using suction cups.
- Place the windshield on a clean, protected surface with the inside
of the windshield facing up.
- If you will reuse the original windshield, 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 1 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 prep (clear #1) on 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 10-16 mm (3/8-5/8 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 1 minute.
- Use a new dauber in order
to apply the glass primer (black #2) to the same areas (2)
where you previously applied the glass prep (clear #1).
You must install the glass within 8 hours after applying the
primer to the glass. Keep the primed surface of the glass 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
(¼ in).
- If using the extended method, cut the applicator nozzle in order
to provide a bead of 12.7 mm (½ in) wide and 12.7 mm
(½ 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.
- Place the windshield on the lower supports.
- With the aid of an assistant,
use the suction cups in order to install the windshield into the opening.
- Align the tape (1)
lines 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 at the fresh 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 you find any
leaks, 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:
• | Partially lower a window in order to prevent pressure buildups
when closing the doors before the urethane adhesive cures. |
• | Do not drive the vehicle until the urethane adhesive is cured.
Refer to the above curing times. |
• | Do not use compressed air in order to dry the urethane adhesive. |
- Install the door sealing weatherstrip to the upper pinchweld flange.
- Install the windshield
reveal molding to the windshield.
- Install the rearview mirror. Refer to
Inside Rearview Mirror Replacement
.
- Install the windshield wiper arms. Refer to
Windshield Wiper Blade Replacement
in Wipers/ Washer Systems.
- Remove the protective coverings and tape from the vehicle and
the headliner.