REAR SPEAKER POP ON VEHICLES W/CELLULAR TELEPHONES. Pontiac Bonneville 1992

SUBJECT: REAR SPEAKER POP ON VEHICLES WITH CELLULAR TELEPHONES (REPLACE AMPLIFIER)

MODELS: 1992-93 PONTIAC BONNEVILLE SSE AND SSEI EQUIPPED WITH RPO U85 8-SPEAKER SOUND SYSTEM

CONDITION:

SOME OWNERS OF VEHICLES EQUIPPED WITH THE RPO U85 8-SPEAKER SOUND SYSTEM MAY COMMENT ON A POPPING/CLICKING OR "MOTOR BOATING" SOUND IN THE REAR SPEAKERS (SOUNDS LIKE A SLOW BOAT MOTOR). THIS CONDITION MAY OCCUR WHEN THE PHONE USES AN INTERIOR MOUNTED ANTENNA (SUCH AS A HAND HELD OR TRANSPORTABLE PHONE).

CAUSE:

THE RADIO FREQUENCY ENERGY TRANSMITTED BY THE PHONE CAUSES FEEDBACK IN THE INSTRUMENT PANEL MOUNTED RADIO AMPLIFIER.

CORRECTION:

REPLACE AMPLIFIER WITH NEW AMPLIFIER, P/N 16183532. THE NEW AMPLIFIER IS NOT AFFECTED BY CELLULAR TELEPHONE OPERATION.

PARTS ARE CURRENTLY AVAILABLE FROM GMSPO.

WARRANTY INFORMATION:

FOR VEHICLES REPAIRED UNDER WARRANTY, USE:

LABOR OPERATION NUMBER: R0820 USE PUBLISHED LABOR OPERATION TIME.

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.