General Motors of Canada has determined that some 1989 Oldsmobile Cutlass Supreme models equipped with Electronic Comfort Control air conditioning may have been built with Control Assemblies which fail to conform to the requirements of Federal Motor Vehicle Safety Standard 103, "Windshield Defrosting and Defogging". The display on the electronic air conditioning control may not function when starting a vehicle which has been parked, with the ignition off, for a few hours. If this occurs at the same time that windshield defrosting is desired, the fan may not function. Turning the ignition off and on (one or more times) may restore the display and provide correct windshield defrosting control.
To prevent this condition from occurring on involved vehicles, dealers are to replace the Electronic Comfort Control Assembly.
Certain 1989 Oldsmobile Cutlass Supreme models equipped with Electronic Comfort Control air conditioning (RPO C68) within the following VIN breakpoints:
PLANT FROM THROUGH --------- --------- -------- Doraville KD300001 KD330299
All 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.
Dealers are to service all vehicles subject to this campaign at no charge to owners, regardless of mileage, 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 in the future, you should take the steps necessary to be sure the campaign correction has been made before reselling 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.
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.
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 required to complete this campaign should be ordered through regular channels, as follows: Quantity Description Rear Window Defog? Part Number Per Vehicle ------------ ---------------- ----------- ---------- Control Assembly Yes, (RPO C49) 1228880 1
Control Assembly No 1228881 1
On the "DEALER CORE INFORMATION TAG" (Yellow Tag), insert the words "Campaign 9Al5" on line 11.
There is an exchange charge on these parts.
Credit for the campaign work performed will be paid upon receipt of a properly completed campaign claim card, RAPID terminal or DCS transmission in accordance with the following:
Repair Code Description Time Allowance ------------ --------------------- 1A Inspect Control Assembly Only .5
2A Inspect and Replace Control Assembly .5
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.
1. Record the station settings on the radio, then remove fuse #2, "ELEC" (15 amp).
2. Remove the instrument panel trim plate at the air conditioning Control Assembly.
3. Remove and set aside the screws which secure the Control Assembly to the instrument panel.
4. Remove the Control Assembly from the instrument panel.
5. Inspect the top of the Control Assembly for the part number and the date code as shown in Figure 1.
For a part number of 16050293 or 16050303: If the date code is "11 02 8" (Nov. 2, 1988) or later, proceed with Step (9) to REINSTALL the Control Assembly. If the date code is earlier than "11 02 8", proceed to Step (6).
If the part number is 16138023 or 16138033, proceed with Step (9) to REINSTALL the Control Assembly.
If the Control Assembly has a Delco remanufacturing label, "FACTORY AUTHORIZED REMANUFACTURED MODULE", proceed with Step (9) to REINSTALL the Control Assembly.
6. On the rear of the control assembly, disconnect the electrical connectors.
7. Determine which air conditioning Control Assembly is installed on the vehicle and obtain a new assembly for installation:
- With rear window defogging (RPO C49) - P/N 1228880. - Without rear window defogging - P/N 1228881.
8. Install the electrical connections to the rear of the new Control Assembly.
9. Insert the Control Assembly into the instrument panel.
10. Reinstall the screws securing the Control Assembly to the instrument panel.
The Control Assembly should fit evenly on the instrument panel mounting bosses without "rocking". If necessary, shim the Control Assembly to panel with a washer at a mounting boss screw location to avoid binding the Control as screws are tightened.
11. Reinstall the instrument panel trim plate.
12. Reinstall fuse #2, then reset the clock, radio stations, and the Driver Information Centre (DIC), if the vehicle is so equipped.
13. Install a 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.
Dear General Motors Customer:
General Motors of Canada has determined that some 1989 Oldsmobile Cutlass Supreme models equipped with Electronic Comfort Control air conditioning may have been built with Control Assemblies which fail to conform to the requirements of Federal Motor Vehicle Safety Standard 103, "Windshieid Defrosting and Defogging". The display on the electronic air conditioning control may not function when starting a vehicle which has been parked, with the ignition off, for a few hours. If this occurs at the same time that windshield defrosting is desired, the fan may not function. Turning the ignition off and on (one or more times) may restore the display and provide correct windshield defrosting control.
To prevent this condition from occurring on your vehicle, the Electronic Comfort Control Assembly in the instrument panel will be inspected, and if necessary will be replaced for you at no charge.
Contact your dealer to arrange a service date. Instructions have been sent to your GM Dealer. The labour time to replace the Electronic Comfort Control Assembly is about 25 minutes. Please allow additional time for your dealer to process your vehicle.
This letter identifies your vehicle. Presentation of this letter to your dealer will assist their Service personnel in completing the necessary correction to your vehicle in the shortest possible time.
Further assistance, if required, may be obtained from the General Motors Zone Office nearest you. Your vehicle Owner's Manual provides the location and phone number of each respective Zone Office.
We are sorry to cause you this inconvenience; however, we have taken this action in the interest of your continued satisfaction with our products.
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.