NHTSA Office of Defects Investigation
Preliminary Evaluation PE23-021: Seat Belt Pretensioner Inadvertent Deployment
- Closed
NHTSA's Office of Defects Investigation opened Preliminary Evaluation PE23-021 on November 22, 2023 and closed it on July 29, 2024. NHTSA's investigations file lists the Ford Expedition and Lincoln Navigator for it and links recall 24V-099 to it.
Updated daily from NHTSA's investigations file
Key facts
- NHTSA number
- PE23-021 (also written PE23021)
- 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 July 29, 2024
- Opened
- Closed
- Vehicle or equipment manufacturer
- Ford Motor Company
- Component
- Seat Belts — Pretensioner
- Recall linked by NHTSA
- 24V-099: Seat Belt May Lock and Fail to Retract or Extend, reported
- Vehicles and equipment
- Ford Expedition and Lincoln Navigator
NHTSA's summary
As NHTSA's Office of Defects Investigation wrote it for Preliminary Evaluation PE23-021.
try.vin does not copy NHTSA's investigation documents; NHTSA's investigation record lists the ones NHTSA has published.
On November 22, 2023, the Office of Defects Investigation (ODI) opened PE23-021 to investigate instances of seat belt pretensioner inadvertent deployment in model year (MY) 2019 Ford Expedition vehicles manufactured by Ford Motor Company. Some complaints allege hearing a loud, explosion-like sound immediately followed by the seatbelt tightening around the occupant’s torso area. The complaints do not allege a crash occurred that may have resulted in the deployment of the pretensioner system. The investigation revealed certain seatbelt pretensioners may develop corroded squib pins where the bridge wire (heating element of pyro-technic device) is welded. Extended corrosion and a partial separation of the weld may cause a high resistance or an open circuit condition to occur, potentially resulting in pretensioner inadvertent deployment. Inadvertent pretensioner deployment will result in the seatbelt being locked in position, no longer able to extend or retract as designed, which may result in injury in the event of a crash. 11 minor injuries were reported due this failure. Most injuries were bruising to the torso area caused by the rapid tightening of the seatbelt during an inadvertent deployment. On February 9, 2024, Ford filed recall 24V099 for certain MY 2018-2020 Ford Expedition and Lincoln Navigator vehicles with production dates between October 1, 2018, and June 30, 2019. The recall remedy provides the replacement of both front seatbelt retractors if found to have a production date code within the suspect production date range. In view of the recall action being taken by Ford, ODI is closing this Preliminary Evaluation. The agency reserves the right to take additional action if warranted by future circumstances. To review the reports cited in the Closing Resume ODI Report Identification Number document, go to NHTSA.gov.
Vehicles and equipment listed for this investigation
NHTSA's investigations file lists these vehicles and equipment for Preliminary Evaluation PE23-021. 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.
Ford
Ford Expedition
Lincoln
Lincoln Navigator
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 PE23-021
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.