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NHTSA Office of Defects Investigation

Engineering Analysis EA99-024: WINDSHIELD WIPER

  • Closed

NHTSA's Office of Defects Investigation opened Engineering Analysis EA99-024 on August 20, 1999 and closed it on January 13, 2000. NHTSA's investigations file lists 4 models from 3 makes for it.

Updated daily from NHTSA's investigations file

Key facts

NHTSA number
EA99-024 (also written EA99024)
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 January 13, 2000
Opened
Closed
Vehicle or equipment manufacturer
General Motors, LLC
Component
Visibility
Vehicles and equipment
4 models from 3 makes, including the Buick Century and Buick Regal

A recall appears here only when NHTSA's investigations file links one to the investigation; NHTSA's summary or record can name others.

NHTSA's summary

As NHTSA's Office of Defects Investigation wrote it for Engineering Analysis EA99-024.

BY LETTER DATED DECEMBER 12, 1999, GM NOTIFIED NHTSA OF ITS PLANS TO CONDUCT A SAFETY RELATED DEFECT CAMPAIGN TO REMEDY 155,149 OF THE SUBJECT VEHICLES.THE VEHICLE POPULATION FOR THE CAMPAIGN INCLUDES THE 1997 BUICK REGAL/CENTURY AND PONTIAC GRAN PRIX MODELS BUILT DURING THE PERIOD FROM THE START OF PRODUCTION THROUGH MAY 1, 1997.

GM DETERMINED THAT THE WIPERS INSTALLED PRIOR TO THIS DATE COULD STOP WORKING, USUALLY DURING HEAVY LOAD CONDITIONS, DUE TO SEPARATION BETWEEN THE DRIVE PIN AND THE CRESCENT IN THE WIPER CRANK ARM ASSEMBLY.EFFECTIVE MAY 1, 1997,GM CORRECTED THIS PROBLEM IN PRODUCTION BY MODIFYING THE DRIVE PIN AND STRENGTHENING THE CRESCENT.THESE SAME IMPROVED PARTS WILL BE INSTALLED IN THE VEHICLES TO BE RECALLED.THE SCOPE OF THE CAMPAIGN WILL INCLUDE ALL VEHICLES PRODUCED PRIOR TO THE MAY 1, 1997 CORRECTION (THE OLDSMOBILE INTRIQUE PRODUCTION DID NOT START UNTIL AFTER MAY 1, 1997, AND IS THEREFORE NOT INCLUDED).

VEHICLES WITH THE SCOPE OF THIS INVESTIGATION AND PRODUCED AFTER MAY 1, 1997, CONTAIN THE MORE ROBUST CRESCENT AND IMPROVED PIN DESIGN AND ARE NOT INCLUDED IN THE RECALL CAMPAIGN.ODI WILL CONTINUE TO MONITOR COMPLAINT REPORTS ON THE VEHICLES PRODUCED AFTER MAY 1, 1997 AND RESERVES THE RIGHT TO TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.BASED ON GM'S RECALL ACTION (ODI 99V-348) THIS INVESTIGATION IS CLOSED.

Vehicles and equipment listed for this investigation

NHTSA's investigations file lists these vehicles and equipment for Engineering Analysis EA99-024. 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.

Buick

All Buick recalls

Oldsmobile

  • Oldsmobile Intrigue

All Oldsmobile recalls

Pontiac

All Pontiac recalls

What 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 EA99-024

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.