NHTSA Office of Defects Investigation

Engineering Analysis EA04-035: FRONT TURN SIGNAL/DRL FAILURE

Closed

NHTSA's Office of Defects Investigation opened Engineering Analysis EA04-035 on December 22, 2004, the day it closed Preliminary Evaluation PE04-061, whose summary cites it, and closed it on October 20, 2005. NHTSA's investigations file lists the 2003–2004 Saturn Ion for it.

Updated daily from NHTSA's investigations file

Key facts

NHTSA number: EA04-035 (also written EA04035)
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 October 20, 2005
Opened: December 22, 2004
Closed: October 20, 2005
Vehicle or equipment manufacturer: General Motors, LLC
Component: Exterior Lighting — Turn Signal
Vehicles and equipment: 2003–2004 Saturn Ion

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 EA04-035.

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

THE COMBINATION FRONT TURN SIGNAL/DRL IN MY 2003 SATURN ION COUPES EXPERIENCED SIGNIFICANT EARLY-LIFE FAILURES DUE TO VARIOUS BULB QUALITY ISSUES DUE TO INADEQUATE DESIGN AND MANUFACTURE.THIS PROBLEM TREND APPEARS TO HAVE DISAPPEARED AFTER THE FALL OF 2003.

THE CHANGE OF LEAD WIRE MATERIAL NEAR THE START OF MY 2004 VEHICLE PRODUCTION APPEARS TO HAVE REDUCED THE FAILURE RATE FOR MY 2004 SATURN ION COUPES.ALTHOUGH OPERATING TEMPERATURES IN THE SUBJECT VEHICLES' LAMP ASSEMBLIES ARE BELOW THE SOCKET MATERIAL MAXIMUM TEMPERATURE SPECIFICATION, THEY ARE ONLY SLIGHTLY BELOW THE SPECIFICATION.IN DECEMBER 2004, GM REDUCED THE VOLTAGE TO THE LAMP ASSEMBLY IN ORDER TO REDUCE THE TEMPERATURE IN THE ASSEMBLY OF THE SUBJECT VEHICLES.WARRANTY CLAIMS ON THE SUBJECT VEHICLES DO NOT INDICATE AN INCREASING TREND OVER TIME.WARRANTY CLAIM RATE OF SUBJECT VEHICLES (EXCLUDING EARLY MY 2003 CLAIMS) IS NOT SIGNIFICANTLY HIGHER THAN OTHER GM VEHICLES THAT USE COMBINATION TURN SIGNAL/DRLS.A SAFETY-RELATED DEFECT TREND HAS NOT BEEN IDENTIFIED AT THIS TIME.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.SEE ATTACHED SUMMARY REPORT.

Vehicles and equipment listed for this investigation

NHTSA's investigations file lists these vehicles and equipment for Engineering Analysis EA04-035. 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.

Saturn

Saturn Ion
- 2003, 2004

All Saturn 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 EA04-035

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.