ERRATIC OR OVERLY SENSITIVE WIPER OP IN AUTO MODE

SUBJECT: ERRATIC OR OVERLY SENSITIVE WIPER OPERATION IN AUTOMATIC MODE (REMOVE AIR BUBBLES/REPLACE RAIN SENSOR MODULE OPTICAL TAPE)

MODELS: 1997 BUICK PARK AVENUE (RAINSENSE EQUIPPED VEHICLES ONLY)

CONDITION:

SOME OWNERS MAY COMMENT ON ERRATIC AUTOMATIC WIPER OPERATION OR THAT THE WIPERS ARE OVERLY SENSITIVE TO SMALL AMOUNTS OF MOISTURE ON THE WINDSHIELD.

CAUSE:

CONDITION MAY BE DUE TO AIR BUBBLES PRESENT BETWEEN THE INSIDE SURFACE OF THE WINDSHIELD AND THE RAIN SENSOR MODULE OPTICAL TAPE.

CORRECTION:

REMOVE THE AIR BUBBLES FROM BETWEEN THE INSIDE SURFACE OF THE WINDSHIELD AND THE RAIN SENSOR MODULE OPTICAL TAPE OR REPLACE THE OPTICAL TAPE (P/N 25645365). PERFORM THE SYSTEM DIAGNOSTICS ON ATTACHMENTS 1 AND 2.

PARTS INFORMATION:

P/N DESCRIPTION === ===========

25645365 RAIN SENSOR REPAIR KIT

PARTS ARE CURRENTLY AVAILABLE FROM GMSPO.

WARRANTY INFORMATION:

FOR VEHICLES REPAIRED UNDER WARRANTY, USE:

LABOR OPERATION NUMBER: N3572 USE PUBLISHED LABOR OPERATION TIME.

FIGURES: 03 ATTACHMENTS: 02

FIGURE 1 1. AIR BUBBLES 2. OPTICAL TAPE 3. WINDOW 4. RAIN SENSOR MODULE

FIGURE 2 1. RAIN SENSOR MODULE

FIGURE 3 1. RAIN SENSOR MODULE 2. SPRAY WATER HEAVILY OVER ENTIRE RAIN SENSOR AREA FOR 5 SECONDS.

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 1997 GENERAL MOTORS CORPORATION. ALL RIGHTS RESERVED.