For 1990-2009 cars

# RADIO LOSES PRESET STATIONS OR SHOWS 'LOC' IN DISPLAY

#### SUBJECT: RADIO LOSES PRESET STATIONS OR SHOWS "LOC" IN DISPLAY (EXCHANGE RADIO FOR NEW UNIT)

#### MODELS: 1991-93 OLDSMOBILE EIGHTY-EIGHT 1991-93 OLDSMOBILE NINETY-EIGHT

#### CONDITION:

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SOME OWNERS MAY EXPERIENCE ONE OR BOTH OF THE FOLLOWING SYMPTOMS:

1. THE RADIO LOSES (FORGETS) PRESET STATIONS, OR UNINTENTIONALLY TUNES TO 98.1 MHZ AFTER AN IGNITION CYCLE.

2.* RADIO DISPLAYS "LOC" IN THE GRAPHIC DISPLAY, REQUIRING A BATTERY TEST.

#### CAUSE:

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FAULTY MICROPROCESSOR IN RADIO.

#### CORRECTION:

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REMOVE RADIO AND SEND TO AN AUTHORIZED DELCO SERVICE STATION FOR REPLACEMENT. THE REPLACEMENT UNIT WILL HAVE A NEW MICROPROCESSOR ELIMINATING THE ABOVE CONDITIONS. INCLUDE NOTE ON REPAIR TICKET: "REFERENCE DELCO ELECTRONIC BULLETIN RD93TBA05".

* NOTE THAT FOR CONDITION 2 ABOVE, THE BATTERY RESET IS ONLY A TEMPORARY SYMPTOMATIC FIX AND NOT A REPAIR.

FOR VEHICLES REPAIRED UNDER WARRANTY, USE:

LABOR OPERATION NUMBER: R0750

FIGURES: 0

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.

COPYRIGHT 1993 GENERAL MOTORS CORPORATION. ALL RIGHTS RESERVED.