NEW POLICY FOR CONVERTIBLE TOP BACK WINDOW (INFORMATIONAL)

SUBJECT: INFORMATION ON THE NEW POLICY FOR CONVERTIBLE TOP BACK WINDOWS

VEHICLES AFFECTED: 1989-1992 PASSENGER CARS WITH CONVERTIBLE TOPS

The new policy of General Motors of Canada Ltd. regarding the Convertible Back Windows on passenger cars is as follows:

-Claims for replacement of complete convertible top covers for correction of back window problems will no longer be accepted.

-The back window will be replaced (sewn into the original top cover) by a local trim shop, using locally available material.

-The replacement back window material must meet applicable government standards (typical trade names are "REGALITE", ULTRALITE", etc.) .

A typical procedure would include the following steps:

1. After removal, place top cover face down on a clean work surface and "score" the inside surface of the window at the window opening using a razor blade, utility knife, etc.

2. Position the replacement window to the top cover, trim most of the excess material off and tape the window to the cover.

3. Using the window opening as a guide, protect the inside surface with paper and tape to prevent damage during sewing operations.

4. Sew the new window to the cover with two rows of stitches: (approximately 6 stitches per inch) - use original sew line and holes as guide.

5. Remove the protective tape and paper, and trim window material to final size.

6. Using a heat gun, apply heat to both sides of the sewn area to help seal and shrink the stitch.

7. Separate the old window from the cover at the score lines and remove from cover.

Reinstall the top cover to the vehicle.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.