NHTSA Office of Defects Investigation
Preliminary Evaluation PE04-012: HEADLIGHT SWITCH FAILURES
- Closed
NHTSA's Office of Defects Investigation opened Preliminary Evaluation PE04-012 on February 2, 2004 and closed it on June 9, 2004. NHTSA's investigations file lists 3 Thomas models for it.
Updated daily from NHTSA's investigations file
Key facts
- NHTSA number
- PE04-012 (also written PE04012)
- 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 June 9, 2004
- Opened
- Closed
- Vehicle or equipment manufacturer
- THOMAS BUILT BUSES, INC.
- Components
- Exterior Lighting — Headlights — Switch; Interior Lighting
- Vehicles and equipment
- 3 Thomas models, including the Bus and School Bus
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 PE04-012.
ODI HAS RECEIVED SEVERAL FAILED SWITCHES THAT SHOW SIGNS OF MELTING OR DAMAGE FROM OVER- HEATING.THE SWITCH SUPPLIER HAS INITIATED A TEST PROGRAM TO DETERMINE THE CAUSE OF THESE FAILURES.ODI IS CONCERNED ABOUT THE PRESENCE OF A HEAT SOURCE THAT POTENTIALLY COULD LEAD TO AN ELECTRICAL FIRE, AS WELL AS THE ABSENCE OF NECESSARY VEHICLE LIGHTING.ODI WILL CONTINUE ITS INVESTIGATION TO VERIFY THE EXTENT OF THE PROBLEM REPRESENTED BY THE REPORTED FAILURES AND EVALUATE THE ASSOCIATED RISKS.
Vehicles and equipment listed for this investigation
NHTSA's investigations file lists these vehicles and equipment for Preliminary Evaluation PE04-012. 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.
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 PE04-012
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.