For 1990-2009 cars

# CAMPAIGN: PWR. WINDOW FAILURES WITH EXPRESS DOWN FEATURE

#### SUBJECT: POWER WINDOW FAILURES

U.S. Campaign Number Cross Reference

Olds Pont Buick 91C07 91C08 91C05

#### Models: 1991 Oldsmobile Calais 1991 Pontiac Grand Am 1991 Buick Skylark All Models Equipped With Power Windows (RPO A31)

ALL GENERAL MOTORS DEALERS

General Motors of Canada has determined that a defect which relates to motor vehicle safety exists in certain 1991 Oldsmobile Calais, Pontiac Grand Am and Buick Skylark models equipped with power windows (RPO A31). These vehicles may exhibit a condition in which moisture enters the express-down electronic control module and creates undesirable continuity. This may result in window operation without operator input and could cause the window to remain down. The module may eventually fail by overheating, which could result in a fire in the door panel.

To prevent this condition from occurring, dealers are to replace the power window express-down electronic control module.

#### VEHICLES INVOLVED:

Involved are CERTAIN 1991 Oldsmobile Calais, Pontiac Grand Am and Buick Skylark models built within the following VIN breakpoints:

Year Model Plant Plant Code From Through ---- ----- ----- ---------- ---- ------- 1991 Oldsmobile Calais Lansing 'M' MM040883 MM075388 1991 Pontiac Grand Am Lansing 'C' MC591095 MC678139 1991 Buick Skylark Lansing 'M' MM242211 MM77313

AH affected vehicles have been identified by the VIN listing provided to involved dealers with this bulletin. Any dealer not receiving a listing was not shipped any of the affected vehicles.

DEALER CAMPAIGN RESPONSIBILITY:

Dealers are to perform this campaign on all involved vehicles at no charge to owners, regardless of kilometres traveled, age of vehicle, or ownership, from this time forward.

Whenever a vehicle subject to this campaign is taken into your new or used vehicle inventory, or it is in your dealership for service, you are to ensure the campaign correction has been made before selling or releasing the vehicle.

Owners of vehicles recently sold from your new vehicle inventory are to be contacted by the dealer, and arrangements made to make the required modification according to instructions contained in this bulletin.

CAMPAIGN PROCEDURE

Refer to Section 4 of the Service Policies and Procedures Manual for the detailed procedure on handling Product Campaigns. Dealers are requested to complete the campaign on all transfers as soon as possible.

#### OWNER NOTIFICATION:

All owners of record at the time of campaign release are shown on the attached computer listing and have been notified by first class mail from General Motors. The listings provided are for campaign activity only and should not be used for any other purpose.

#### PARTS INFORMATION:

Parts required to complete this campaign should be ordered through regular channels, as follows:

Part Number Description Quantity/Vehicle ----------- ----------- ---------------- 16626458 Module-Express Down 1 (Some parts may include a mounting bracket, which may be removed and discarded prior to installation.)

PARTS AND LABOUR CLAIM INFORMATION:

Credit for the campaign work performed will be paid upon receipt of a properly completed campaign claim card or DCS transmission in accordance with the following:

Repair Code Description Time Allowance ----------- ----------- -------------- 2A Replace Express Down Module .7

Time allowance includes 0.1 hour for dealer administrative detail associated with this campaign. Parts credit will be based on dealer net plus 30% to cover parts handling.

#### SERVICE PROCEDURE:

#### NOTICE: MAKE SURE THE IGNMON IS IN TBE "OFF" POSMON AND THE KEY IS REMOVED FROM THE IGNMON BEFORE DISCONNECTING OR CONNECTING POWER WINDOW SWITCHES. FAILURE TO DO SO COULD RESULT IN DAMAGE TO THE POWER WINDOW SWITCHES.

1. Position door glass in full down position and remove door trim panel following the procedure in section 10-6 of the service manual.

2. Carefully peel the water deflector upward and rearward far enough to completely uncover the access hole at the front of the door inner panel. Use care to avoid damaging the water deflector.

#### CAUTION:

MAKE SURE THAT THE IGNITION IS IN THE "OFF" POSITION AND THE KEY IS REMOVE FROM THE IGNITION WHILE WORKING INSIDE THE DRIVER'S DOOR. WHEN OPERATED, THE EXPRESS DOWN FEATURE ALLOWS THE DOOR GLASS TO DROP VERY QUICKLY WHICH COULD CAUSE PERSONAL INJURY.

3. Disconnect the express down module wiring connector. See illustration.

4. Depress the release tab on the lower edge of the express down module and pull the module toward the front of the vehicle. The module will move about 10mm (3/8") before the mounting stud on the module contacts the front of the slot in the mounting bracket. Disengage the module from the mounting bracket by tilting the module outward (away from the inner door). See illustration.

5. Install the new express down module, P/N 16626458, by positioning the module to the mounting bracket and sliding into position until the release tab locks into position.

6. Reconnect the wiring connector to the express down module.

7. Reposition the water deflector to the door inner panel. Water proof tape must be used to reseal the deflector if the original adhesive becomes loose, if the holes in the deflector do not line up with the door inner panel, or if the deflector is damaged.

8. Reinstall the door trim panel following the procedure in section 10-6 of the service manual.

9. Check the window for proper operation.

10. Install campaign identification label.

INSTALLATION OF CAMPAIGN IDENTIFICATION LABEL

Clean surface of radiator upper mounting panel and apply a Campaign Identification Label. Make sure the correct campaign number is inserted on the label. This will indicate that the campaign has been completed.

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.