INSTRUMENT CLUSTER EXCHANGE PROGRAM AND PROCEDURES

SUBJECT: INSTRUMENT CLUSTER EXCHANGE/REPAIR PRO

MODELS AFFECTED: ALL 1991 MODELS

THIS BULLETIN IS BEING ISSUED TO REVISE PART NUMBERS ON THE 1991 ROADMASTER WAGON AND PARK AVENUE/ULTRA CLUSTERS. PLEASE DISCARD BUICK BULLETIN 91-8-6 AND REPLACE IT WITH THIS BULLETIN.

The subject program provides an Exchange/Repair Program for Instrument Clusters used on the above listed models at a cost substantially below new replacement parts. See page with illustration for part numbers and application.

Exchange units are obtained by telephoning one of the authorized AC Delco Service Centers listed in this bulletin. If the service center contacted does not have a pre-exchange cluster, call 313-974-0497 (between the hours of 7:30 a.m. and 4:30 p.m. EDT) and give the operator the following information:

1. Name of the AC Delco Service Center contacted 2. Part number of the unit ordered 3. Dealer name, address and telephone number

The operator will locate the nearest service center with an available unit and the service center will advise the dealer when delivery can be expected.

Please note that this procedure is not an alternative for the dealer from his normal way of doing business, but an enhancement when he encounters a legitimate problem toward attainment of customer satisfaction.

TIMELY RETURN OF UNITS FOR REPAIR:

Return of units for repair in cases of pre-exchange is critical to the success of the exchange program. When dealers do not immediately return clusters, it results in local parts shortages.

Please adhere to the following procedure when a vehicle requires dealer service for an inoperative instrument cluster:

1. Follow the diagnostics procedure in the Service Manual precisely and completely. Many conditions perceived by the observer to be in the instrument cluster are actually conditions with remote sensors and connectors. Proper diagnostics will identify the source of the condition and avoid unnecessary removal and shipping of functional assemblies to service centers.

2. When the diagnostics are complete and the condition is determined to be the instrument cluster, determine which exchange is required by matching the unit to the cluster illustrations on the attached pages. If the odometer is part of the exchange unit, tell the service center the mileage to which the cluster should be set.

3. Upon receiving the exchange unit from the service center, take it to the vehicle still packed in the reusable shipping container. The container protects it from damage due to static electricity. Use care in handling the exchange unit and the inoperative cluster. Hands must be free of dirt and grease. Avoid touching electronic components, as electrostatic discharge can degrade performance or cause failure.

4. Remove the inoperative instrument cluster and replace it with the exchange unit.

5. Include a description of the instrument cluster condition in the "Nature of Problem" area of the ACD-1078 form. Pack the inoperative instrument cluster in the reusable shipping container, together with five (5) copies of the completed ACD-1078 warranty form.

6. Enclosed in the reusable container is an addressed shipping label. Attach this label to the outside of the box and ship immediately to the service center from which you obtained the exchange unit. The dealer copy of the ACD-1078 warranty form will be returned and the memo billing cancelled upon receipt of the inoperative instrument cluster at the service center.

7. Failure to return the inoperative instrument cluster in the special reusable container, can result in a container replacement fee. Failure to return the ACD-1078 warranty form or the inoperative instrument cluster to the service center within 30 days of the date the exchange unit was shipped, can result in a repair fee or an instrument cluster replacement fee.

AUTHORIZED AC-DELCO INSTRUMENT CLUSTER EXCHANGE/REPAIR CENTERS

Alabama New Jersey Rickwood Radio Mobil Eastern Elec. Inc. 1283 Azalea Rd. 180 Essex Street Mobile, AL 36609 Hackensack, NJ 07601 (205) 661-8692 (201) 342-3945 1-800-334-7065 (National) (800) 221-2138 (Out of State)

Arizona New York Jimmmy's Radio-TV Corp. United Radio Service 7882 E. Gray Rd. 5705 Enterprise Pkwy. Scottsdale, AZ 85260 E. Syracuse, NY 13057 (602) 948-5717 (315) 446-5570 800-528-2056 (National) (800) 962-0901 (In State) (800) 448-0944 (Out of State) California Auto Electric Radio Model Electronic, Inc. 1841 West Commonwealth 321 West Route 59 Fullerton, CA 92633 Nanuet, NY 10954 (714) 871-7357 (914) 623-8020 (800) 321-6970 (In-State) (800) 433-9657 (National) (800) 321-6969 (Out of State) North Carolina California Downtown Radio Service Speed-O-Tach. Inc. 2908 Stewart Creek Blvd. 2198 N. Main Charlotte, NC 28216 Walnut Creek, CA 94596 (704) 391-0801 (415) 935-2040 (800) 522-4706 (In-State) 1-800-442-4491 (In-State) (800) 537-0116 (Out of State)

Colorado Ohio Downtown Radio of Denver Inc. Dayton Speedometer Service Inc. 2525 West Sixth Avenue 660 North Main Street Denver, CO 80204 Dayton, OH 45405 (303) 573-6288 (513) 222-1491 (800) 525-3539 (National) (800) 543-0719 (In-State) (800) 543-9687 (Out of State)

Florida Electra-Sound Incorporated TECHNI-CAR Incorporated 5260 Commerce Parkway, West 5688 West Crenshaw Parma, OH 44130 Tampa, FL 33634 (216) 433-9600 (813) 884-0022 (800) 252-4200 (National) (800) 662-0022 (In-State) (800) 822-0022 (Out of State) Pennsylvania R. T. Grim Company Georgia 400 Regis Avenue Speedometer Service Company Pittsburgh, PA 15236 8471 Roswell Road (412) 655-1574 Atlanta, GA 30338 (800) 222-5509 (National) (404) 998-1666 (800) 332-1827 (In-State) H & R Radio Service (800) 241-2385 (Out of State) 139 York Road Warminster, PA 18974 Illinois (215) 672-3707 D & B Auto Radio Incorporated (800) 492-2074 (In-State) 2140 Corporate Drive (800) 523-6605 (Out of State) Addison, IL 60101 (708) 916-8787 Tennessee (800) 323-4813 (National) Rickwood Radio Service 1830 Airlane Drive Maryland Nashville, TN 37210 Caton Radio Incorporated (615) 889-3270 6328 Baltimore National Pk. (800) 423-4142 (National) Catonsville, MD 21228 (301) 747-8667 Texas (800) 443-6709 (National) Speedometer Service Inc. 3227 Skylane Drive Massachusetts Carrollton, TX 75006 Modern Radio Shop (214) 380-8944 34 Broadway (800) 336-3998 (National) Wakefield, MA 01880 (617) 246-2052 Texas 800-848-4001 (Out of State) Zener Electronics, Inc. 9434 Old Katy Road - 400 Michigan Houston, TX 77055 Specmo Enterprises (713) 932-6360 3890 W. 11 Mile Rd. (800) 992-1092 (National) Berkley, MI 48072 313-399-9806 Virginia (800) 545-7911 (Out of State) Southern Autotronics, Inc. 3300 Norfolk Street Minnesota Richmond, VA 23230 Auto Sound Entronix (804) 353-5400 9600 54th Ave. North (800) 572-2880 (In-State) Minneapolis, MN 55442 (800) 446-2880 (Out of State) (612) 559-9654 (800) 328-0795 (National) Washington Instrument Sales Missouri & Service Inc. Autronics Auto Spec. 18814 72nd Ave. South 1450 Page Ind. Ct. Kent, WA 98032 Saint Louis, MO 63132 (206) 251-9092 (314) 423-2323 (800) 444-7976 (National) (800) 392-1516 (In State) (800) 325-1325 (Out of State)

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.