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.
- Disconnect the rear window defogger electrical connector from the rear
window defogger, if equipped.
- Gently pry and remove the quarter upper trim panels (2)
from the vehicle.
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 rear window reveal molding fills the cavities between the body and
rear window and can not be reused if stretched or damaged.
- Remove the rear window reveal molding.
- Grasp the upper corner of the rear window reveal molding by hand
and slowly pull the reveal molding away from the rear window.
- If the rear window reveal
molding will not release, use a utility knife in order to cut around the rear
window in order to remove the rear window reveal molding.
Important: Keep the cutting edge of the tool against the rear window when removing
the rear window. This will allow the urethane adhesive to be separated from
the rear window. Leave a base of urethane on the pinchweld flange.
The only suitable lubrication is clear water.
- Use the J 24402-A
or J 39032
in order to
remove the rear window.
- With the aid of an assistant,
use the suction cups in order to lift the rear window from the opening.
- 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 rear window:
• | The flange of the rear window opening |
• | The rear window reveal molding |
- Inspect for any of the following problems in order to help prevent
future breakage of the rear window:
• | 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, 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.
- After repairing the opening as indicated, perform the following steps:
• | Remove all traces of broken glass from the vehicle. |
• | Clean around the edge of the inside surface of the rear window
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 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.
- Use a new dauber to apply the pinchweld primer (1) (black #3)
to the surface of the bonding area.
- Allow the primer to dry for approximately 10 minutes. Ensure
that all nicks and scratches are covered.
- Install the rear window reveal molding. If the original reveal
molding is damaged, it must be replaced. Refer to
Rear Window Reveal Molding Replacement
.
- With the aid of an assistant,
dry fit the rear window in the opening in order to determine the correct
way to position the window in the opening.
- Use masking tape in order to mark the location of the rear window
in the opening.
- Slit the masking tape at the top edge of the rear window.
- With the aid of an assistant and the suction cups, remove the
rear window.
- Place the rear window inside up on a clean, protected surface.
- If the original window (2) is being reused, remove all
but a thin film of the existing urethane adhesive (3) from the window
surface by using a clean utility knife or a 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 (2) from the
pinchweld flange.
- Clean around the edge of the inside surface of the 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.
- 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 the glass prep (clear #1) to the rear
window. This primer dries almost instantly and may stain the viewing area
of the rear window if not applied evenly.
- Use a new dauber, to apply the 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 glass primed area immediately with a clean lint free
cloth.
- Shake the glass primer (black #2) for at least 1 minute.
- Shake the rear window
primer (black #2) for at least 1 minute.
- Use a new dauber, in order to apply the rear window primer (black
#2) to the areas of the rear window (1) to which 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 of the glass must be kept clean.
- Allow the 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 approximately
6.0 mm (1/4 in).
- If using the extended method, cut the applicator nozzle in order
to provide a bead approximately 12.7 mm (0.5 in) wide and 12.7 mm
(0.5 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 rear window (3) 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 rear window.
- With the aid of an assistant, use the suction cups in order to
install the rear window into the opening.
- Align the tape lines on the rear window and the body.
- Press the rear window firmly into place.
- Tape the rear window 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 watertest the
rear window.
- Inspect the rear window for leaks.
- If any leaks are found, use a plastic paddle in order to apply
extra urethane at the leak point.
- Retest the rear 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.
- The following conditions must be maintained to properly cure the urethane.
41.1. | Partially lower a rear door window in order to prevent pressure
buildups when closing doors before the urethane adhesive cures. |
41.2. | Do not drive the vehicle until the urethane adhesive is cured.
Refer to the above curing times. |
41.3. | Do not use compressed air in order to dry the urethane adhesive. |
- Install the upper rear quarter trim panels to the vehicle.
- Connect the rear window defogger electrical connector to the rear
window defogger, if equipped.
- Remove the protective coverings and tape from the vehicle and
headliner.