NHTSA Office of Defects Investigation
Preliminary Evaluation PE06-017: ALLEGED HEADLIGHT FAILURE
- Closed
NHTSA's Office of Defects Investigation opened Preliminary Evaluation PE06-017 on May 15, 2006 and closed it on October 25, 2006. NHTSA's investigations file lists the 2001–2003 Chevrolet Impala for it.
Updated daily from NHTSA's investigations file
Key facts
- NHTSA number
- PE06-017 (also written PE06017)
- Investigation type
- Preliminary Evaluation The first stage of most defect investigations: NHTSA's Office of Defects Investigation gathers basic information about a possible safety defect, including from the manufacturer.
- Status
- Closed October 25, 2006
- Opened
- Closed
- Vehicle or equipment manufacturer
- General Motors, LLC
- Components
- Exterior Lighting; Exterior Lighting — Headlights; Exterior Lighting — Headlights — Switch
- Vehicles and equipment
- 2001–2003 Chevrolet Impala
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 Preliminary Evaluation PE06-017.
A TOTAL OF 646,038 SUBJECT VEHICLES WERE SOLD DURING MY 2001-2003, AND THE COMPLAINT AND WARRANTY DATA TABULATED ABOVE APPLY TO THE TOTAL VEHICLE POPULATION.COMPLAINT REPORTS ALLEGING HEADLIGHT OUTAGE REPRESENT SLIGHTLY MORE THAT ONE-HALF OF THE TOTAL NUMBER OF COMPLAINTS AND THE BALANCE ARE ALLEGATIONS OF FLICKERING AND DIMMING.INVESTIGATION DISCLOSED THE ROOT CAUSE OF THE MALFUNCTION TO BE WEAR OF A CONTACT PLUNGER IN THE MULTIFUNCTION SWITCH THAT MAY RESULT IN A TEMPORARY OPEN CIRCUIT, WITH THE PLUNGER IN A NEUTRAL POSITION BETWEEN HIGH- AND LOW-BEAM CONTACT POINTS.CONSUMERS CONSISTENTLY REPORTED THAT MANIPULATION OF THE SWITCH HANDLE ON THE STEERING COLUMN RESTORES EITHER HIGH OR LOW BEAM HEADLIGHT FUNCTION.NO OTHER POTENTIAL SAFETY RELATED ISSUES, E.G., FIRES OR WINDSHIELD WIPER FAILURE, WERE FOUND TO BE RELATED TO THIS ISSUE.THE MANUFACTURER RECOGNIZED THE SUBJECT HEADLIGHT ISSUES FROM FAILURE AND WARRANTY REPORTS, AND ISSUED A REDESIGNED PLUNGER IN 2003. THE MANUFACTURER DID NOT IDENTIFY A DEFECT REQUIRING RECALL AND REMEDY.ODI HAS DETERMINED THAT THE RATES OF OCCURRENCE, THE FAILURE MODE AND THE REAL-WORLD CONSEQUENCE OF THE ALLEGED DEFECT AS COMPARED TO OTHER SIMILAR INVESTIGATIONS FAIL TO IDENTIFY A SAFETY-RELATED DEFECT TREND.THIS PRELIMINARY EVALUATION HAS BEEN CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING THAT A SAFETY-RELATED DEFECT DOES NOT EXIST.THE AGENCY MAY TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.
Vehicles and equipment listed for this investigation
NHTSA's investigations file lists these vehicles and equipment for Preliminary Evaluation PE06-017. 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 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.
Chevrolet VIN check: decode a VIN to see its year, make and model.
Sources
NHTSA's investigation record for PE06-017
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.