NHTSA Office of Defects Investigation

Engineering Analysis EA03-005: REAR AXLE TRAILING ARM FAILURE

  • Closed

NHTSA's Office of Defects Investigation opened Engineering Analysis EA03-005 on April 23, 2003 and closed it on January 12, 2004. NHTSA's investigations file lists 5 models from 3 makes for it.

Updated daily from NHTSA's investigations file

Key facts

NHTSA number
EA03-005 (also written EA03005)
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 12, 2004
Opened
Closed
Vehicle or equipment manufacturer
General Motors, LLC
Components
Suspension; Suspension — Rear
Vehicles and equipment
5 models from 3 makes, including the Chevrolet U-Van and Chevrolet Venture

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 EA03-005.

try.vin does not copy NHTSA's investigation documents; NHTSA's investigation record lists the ones NHTSA has published.

ON NOVEMBER 18, 2002, ODI OPENED A PRELIMINARY EVALUATION (PE02-086) TO EVALUATE ALLEGATIONS OF REAR AXLE TRAILING ARM FAILURES IN THE SUBJECT VEHICLES (U-VAN) WHICH INCLUDED TWO REPORTING CRASHES.ON APRIL 9, 2003, ODI UPGRADED PE02-086 TO AN ENGINEERING ANALYSIS (EA03-005) TO CONTINUE ITS EXAMINATION OF THE ISSUE. THE TRAILING ARM DESIGN IN THESE VEHICLES HAS BEEN USED IN THE U-VAN FROM MY 1997 THROUGH THE PRESENT.THE GM ANALYSIS CONCLUDED THAT THE SUBJECT TRAILING ARMS COULD CRACK OR BUCKLE IF THEY WERE DAMAGED DURING ASSEMBLY, PRE-DELIVERY HANDLING, OR SUBJECTED TO CERTAIN SERVICE RELATED ABUSE CONDITIONS SUCH AS IMPROPER TOWING OR JACKING.ANALYSIS OF ODI AND GM DATA HAS IDENTIFIED 19 INCIDENTS OF REAR AXLE TRAILING ARM FAILURES IN THE SUBJECT VEHICLES.THERE HAVE BEEN NO NEW REPORTS TO ODI OR GM IN THE LAST 12 MONTHS AND ONLY ONE NEW COMPLAINT IN THE LAST 21 MONTHS. DUE TO THE LOW COMPLAINT RATE AND THE ABSENCE OF A CONTINUING TREND IN REPORTED FAILURES, A SAFETY-RELATED DEFECT HAS NOT BEEN IDENTIFIED AT THIS TIME AND FURTHER USE OF AGENCY RESOURCES DOES NOT APPEAR TO BE WARRANTED.ACCORDINGLY, THIS INVESTIGATION IS CLOSED. THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT A SAFETY-RELATED DEFECT DOES NOT EXIST. THE AGENCY WILL TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES. FOR ADDITIONAL INFORMATION, SEE THE ATTACHED CLOSING REPORT.

Vehicles and equipment listed for this investigation

NHTSA's investigations file lists these vehicles and equipment for Engineering Analysis EA03-005. 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 recalls

Oldsmobile

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 EA03-005

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.