DIGITAL INSTRUMENT CLUSTER EXCHANGE REPAIR PROGRAM
MODELS AFFECTED: 1985 CENTURY, RIVIERA, REGAL AND SOMERSET REGAL
Buick is pleased to announce an exchange repair program for the optional 1985 digital instrument clusters on Century, Riviera, and Regal models and the standard digital instrument cluster on the Somerset Regal. This program provides repaired digital instrument clusters in exchange for inoperative ones at a cost substantially below new replacement parts.
Digital Instrument Clusters are serviced with the exchange units listed in the following chart. An exchange unit for Century, Riviera and Regal consists of processor and driver circuit boards assembled to a dial. The exchange unit for Somerset Regal also consists of the carrier and printed circuit. These exchange units are available from the eight authorized AC-Delco Service Centers listed in this bulletin.
An exchange Digital Instrument Cluster may be obtained by telephoning the nearest service center listed in this bulletin. (For your convenience, all eight centers have toll-free numbers.) The requested exchange unit will be shipped via UPS within 24 hours, along with a memo billing. The memo billing will be cancelled when the inoperative unit is received by the service center from which you obtained the exchange unit. Should the situation arise where the service center called is not able to immediately ship an exchange unit, you have the option of calling another listed center. However, the first center called should be informed to cancel your order.
Please adhere to the following procedure when a vehicle requires dealer service for an inoperative digital instrument cluster.
1. Follow the diagnostics procedure in the Service Manual precisely and completely. Many conditions perceived by the observer to be in the cluster may actually be 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 diagnostics are complete and it is determined to be in the cluster, call one of the service centers, and request the appropriate exchange unit. Drawings of the 1985 Buick digital units are included with this bulletin to assist you in ordering the correct exchange unit.
3. After the exchange unit is received from the service center, remove the inoperative cluster by following the Removal and Installation Procedures in your Service Manual.
4. On Century, Regal and Riviera, remove the exchange unit from the reusable shipping container and attach the speedometer mechanism to the cluster. Reassemble the shift indicator lens, and trip odometer knob then install in the vehicle. On Somerset Regal, remove the exchange unit from the reusable shipping container and install as follows: Remove IP trip plate; trip odometer, multi-gage, netric/English, and fuel gage knobs; screws securing lens; lens; and screws securing unit; and cluster. Transfer the nonvolatile memory chip (NVM) from the removed cluster to the exchange unit and install exchange unit in cluster. See your Service Manual for location of NVM chip. Use care in handling the exchange unit. Hands must be free of dirt and grease. Avoid touching electronic components in the cluster, since electrostatic discharge can cause some components to fail.
5. Pack the inoperative cluster previously removed from the vehicle in the reusable shipping container, together with all five (5) copies of the completed ACD-1078 warranty form. Be sure to include a description of the cluster problem in the "Nature of Problem" area of the ACD-1078 Form to assist the service center in isolating the cause. Failure to return the inoperative cluster in the special reusable container can result in a $10.00 container replacement fee.
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 AM-1078 warranty form will be returned to you and the billing will be cancelled upon receipt of the inoperative unit at the service center.
The success of the Digital Instrument Cluster Exchange Program is dependent upon prompt return of the inoperative cluster to the service centers. Your cooperation is essential to maintain sufficient exchange stock at each center.
AUTHORIZED AC-DELCO REPAIR CENTERS (Digital Instrument Cluster Repair Program)
WEST Auto Electric Radio 1841 w. Commnwealth Fullerton, CA 92633
(714) 871-7426 1-800-321-6969 - Outside California 1-800-321-6970 - California Only
Randazzo Auto Radio 233 Commercial St. San Jose, CA 95112
(408) 293-1920 1-800-538-9702 - Outside California 1-800-662-9877 - California Only
Speedometer Service Co. 14109 Inwood Rd. Dallas, TX 75234
(214) 387-8511 1-800-527-0108 or 9 - Outside Texas 1-800-492-9026 - Texas Only
EAST United Radio Service 2949 Erie Blvd., East Syracuse, NY 13224
(315) 446-5570 1-800-448-0944 - Outside New York 1-800-962-0901 - New York Only
Techni-Car, Inc. 4901 c. Rio Vista Ave. Tampa, FL 33615
(813) 884-0022 1-800-822-0022 - Outside Florida 1-800-662-0022 - Florida Only
MIDWEST
Specmo Instrument Service 2344 N. Woodward Avenue Royal Oak, MI 48073
(313) 399-5645 1-800-545-7910 - Michigan Only 1-800-545-7911 - Outside Michigan
D & B Auto Radio, Inc. 3725 N. 25th Ave. Schiller Park, IL 60176
(312) 678-8475 1-800-323-4813 - Outside Illinois 1-800-942-8049 - Illinois Only
CANADA Custone Auto Radio 1614 Charles St. Whitby, Ontario Canada, LIN 1B9
(416) 668-2664 1-800-263-7867 - Canada Only
CENTURY EXCHANGE UNIT IDENTIFICATION CHART
AREA PRINTING EXCHANGE UNIT ---- --------- -------------- A P R N D D 2 1 25078508 B Kilometers
A None 25078507 B Kilometers
A P R N D D 2 1 25053223 B Kilometers
A P R N D D 2 1 25053118 B None
A P R N D 2 1 25053117 B None
A None 25078505 B None
*REGAL "AUTOMATIC OVERDRIVE" PRINTING LONGER THAN "P R N D D 2 1" PRINTING
AUTOMATIC OVERDRIVE
P R N D D 2 1
**RIVIERA "AUTOMATIC OVERDRIVE" PRINTING SHORTER THAN "P R N D D 2 1" PRINTING
AUTOMATIC OVERDRIVE
P R N D D 2
RIVIERA/REGAL EXCHANGE UNIT IDENTIFICATION CHART
AREA PRINTING EXCHANGE UNIT ---- --------- ------------- A Unleaded fuel only 25053104 B None C Trip Odometer D None E Automatic overdrive ** P R N D D 2 1 F None
A Unleaded fuel only 25078473 B None C Trip Odometer D Premium Fuel E Automatic overdrive ** P R N D D 2 1 F Turbo Power
A Diesel fuel Only 25053106 B None C Trip Odometer D None E Automatic overdrive ** P R N D D 2 1 F Diesel Engine
A Unleaded fuel only 25053225 B Kilometers C Trip Odometer D None E Automatic Overdrive P R N D D 2 1 F None
A Unleaded fuel only 25078463 B None C Trip Odometer D Premium fuel E Automatic overdrive * P R N D D 2 1 F Turbo Power
A Unleaded fuel only 25078464 B None C Trip Odometer D None E P R N D 2 1 F None
A Diesel fuel only 25081394 B None C Trip Odometer D None E P R N D 2 1 F Diesel Engine
A Unleaded fuel only 25078468 B None C Trip Odometer D None E None F None
A Unleaded fuel only 25078469 B None C Trip Odometer D Premium fuel E None F Turbo Power
A Diesel fuel only 25078470 B None C Trip Odometer D None E None F Diesel Engine A Unleaded fuel only 25078467 B Kilometers C Trip Odometer D None E Automatic overdrive * P R N D D 2 1 F None
A Unleaded fuel only 25078466 B Kilometers C Trip Odometer D None E P R N D 2 1 F None
A Unleaded fuel only 25078471 B Kilometers C Trip Odometer D None E None F None
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.
