NHTSA Office of Defects Investigation
Engineering Analysis EA04-002: WINDSHIELD WIPER FAILURE
- Closed
NHTSA's Office of Defects Investigation opened Engineering Analysis EA04-002 on January 6, 2004, the day it closed Preliminary Evaluation PE03-042, whose summary cites it, and closed it on February 10, 2004. NHTSA's investigations file lists 4 models from 4 makes for it and links recalls 04V-046 and 04V-061 to it.
Updated daily from NHTSA's investigations file
Key facts
- NHTSA number
- EA04-002 (also written EA04002)
- Investigation type
- Engineering Analysis A more detailed stage of a defect investigation, opened when NHTSA's Office of Defects Investigation decides an issue merits further review, often after a Preliminary Evaluation or a Recall Query; it can include vehicle testing, surveys and further information requests.
- Status
- Closed February 10, 2004
- Opened
- Closed
- Vehicle or equipment manufacturers
- General Motors, LLC; Isuzu Motors Limited
- Components
- Visibility — Windshield Wiper/Washer; Visibility — Windshield Wiper/Washer — Motor
- Recalls linked by NHTSA
- Vehicles and equipment
- 4 models from 4 makes, including the Chevrolet Trailblazer and GMC Envoy
NHTSA's summary
As NHTSA's Office of Defects Investigation wrote it for Engineering Analysis EA04-002.
ON SEPTEMBER 17, 2003, THE OFFICE OF DEFECTS INVESTIGATION (ODI) OPENED A PRELIMINARY EVALUATION (PE03-042) TO INVESTIGATE ALLEGED WINDSHIELD WIPER FAILURE IN CERTAIN MODEL YEAR (MY) 2002 AND 2003 CHEVROLET TRAILBLAZER AND TRAILBLAZER EXT, GMC ENVOY AND ENVOY XL, AND OLDSMOBILE BRAVADA VEHICLES.THE INVESTIGATION WAS UPGRADED TO AN ENGINEERING ANALYSIS ON JANUARY 6, 2004, AND THE SCOPE WAS EXPANDED TO INCLUDE CERTAIN MY 2003 ISUZU ASCENDER VEHICLES.ALL SUBJECT VEHICLES ARE BUILT ON GENERAL MOTORS? GMT360 AND GMT370 PLATFORMS AND WERE ORIGINALLY EQUIPPED WITH A WINDSHIELD WIPER ASSEMBLY REFERRED TO AS THE FAMILY DESIGN MODULE (P/N 15171306 BASE, P/N 15171307 FOR VEHICLES EQUIPPED WITH RAINSENSE AUTOMATIC MOISTURE SENSITIVE WIPERS).
WATER ENTERS THE WINDSHIELD WIPER MODULE CAUSING THE ELECTRICAL COMPONENTS ON THE CONTROL CIRCUIT BOARD TO CORRODE AND SHORT OUT, THUS RENDERING THE WIPER MOTOR/MODULE INOPERATIVE.IN NOVEMBER 2002, GM INTRODUCED INTO VEHICLE PRODUCTION A REDESIGNED WINDSHIELD WIPER ASSEMBLY REFERRED TO AS THE ?GLOBAL? DESIGN MODULE (P/N 15094704 BASE, P/N 15094705 FOR VEHICLES EQUIPPED WITH RAINSENSE) TO BETTER CONTROL WATER INTRUSION.ODI HAS RECEIVED A TOTAL OF 1,179 NON-DUPLICATIVE OWNER AND FIELD REPORTS ALLEGING WINDSHIELD WIPER FAILURE ON VEHICLES ORIGINALLY EQUIPPED WITH THE ?FAMILY? DESIGN MODULE.BY LETTER DATED FEBRUARY 2, 2004, GM HAS NOTIFIED ODI THAT IT WILL CONDUCT A SAFETY RECALL (NHTSA RECALL NO. 04V-046).
ACCORDINGLY, THIS INVESTIGATION IS CLOSED.
Vehicles and equipment listed for this investigation
NHTSA's investigations file lists these vehicles and equipment for Engineering Analysis EA04-002. A listed model year means only that an investigation names it; it says nothing about any particular vehicle. Model years with a try.vin recall page link to that page's NHTSA investigations section.
Chevrolet
All Chevrolet recallsGMC
All GMC recallsIsuzu
Isuzu Ascender
Oldsmobile
All Oldsmobile recallsWhat an NHTSA investigation is
NHTSA's Office of Defects Investigation (ODI) looks into possible safety defects in vehicles and equipment, often after owner complaints. An investigation usually starts as a Preliminary Evaluation, or as a Recall Query when it concerns whether an existing recall covers the right vehicles or fixes the problem, and ODI can upgrade it to a more detailed Engineering Analysis. A Defect Petition asks NHTSA to open an investigation, and Audit and Equipment Queries are administrative investigations into whether companies complied with federal vehicle safety requirements, such as reporting, recall and certification rules.
An open investigation is not a finding that a safety defect exists, and NHTSA can close one without a recall.
To see whether a specific vehicle has an open recall, enter its VIN at nhtsa.gov/recalls.
Free VIN check: decode a VIN to see its year, make and model.
Sources
NHTSA's investigation record for EA04-002
Investigation details come from NHTSA's investigations file, which try.vin imports once a day. The investigation types are described from the U.S. Department of Transportation Inspector General's May 2023 report on NHTSA's Office of Defects Investigation, NHTSA's petition rules (49 CFR Parts 552 and 557) and NHTSA's Office of Defects Investigation procedures. How try.vin reads NHTSA investigations.