Investigations
Service Jack Failure
NHTSA Preliminary Evaluation PE11033 - closed, opened 2011-09-13.
NHTSA investigation PE11033 is a Preliminary Evaluation opened on 2011-09-13 and currently closed. The subject is tracked inside the Office of Defects Investigation queue. Latest activity on this investigation was logged on 2012-12-07 - NHTSA updates that field whenever an Information Request goes out, a supplement is filed, or a status change is recorded in the public docket.
A Preliminary Evaluation like PE11033 is the entry point of the federal defect-investigation process. NHTSA engineers scan complaint databases, field reports, and manufacturer data to decide whether an Engineering Analysis is warranted, whether a voluntary recall is already sufficient, or whether the pattern does not rise to a defect finding.
Investigators summarized the matter as follows: "The subject vehicles (SV) are all automatic transmission, front wheel drive vehicles with hand actuated mechanical park brakes. The investigation focused on allegations that the service jack failed and caused the vehicle..." Investigations are the early-warning layer of the federal auto-safety system, sitting upstream of formal recalls and defect orders. Whether this one closes without action or escalates into an Engineering Analysis, the full history stays in the ODI archive so researchers, litigators, and buyers can pull the paper trail at any time.
Investigation Summary
The subject vehicles (SV) are all automatic transmission, front wheel drive vehicles with hand actuated mechanical park brakes. The investigation focused on allegations that the service jack failed and caused the vehicles to fall. The subject scissors-type jack appears to fail at the slotted hinge joints where the jack screw is located (bends at mid-point). The failures occur while the jack is in use, and vehicle movement (forward or backward) is typically reported coincident with the failure. Ford reported that most MY 2003 Windstar and all MY 2006-2007 Freestar/Monterey also use the subject jack, an additional 223,246 vehicles. NHTSA has received six consumer complaints (VOQs) involving three injury incidents and a fatality. Ford reported 26 complaints for the SVs involving an additional 4 injuries. In the fatal incident, the van fell on a person working on the engine under the otherwise unsupported vehicle; ODI was unable to determine whether the vehicle was adequately chocked or the park brake was properly set. Reported injuries include a broken arm, head and hand injuries, arm and rib bruises, and muscle strains. NHTSA has received just one new report since opening this investigation. The complaint trend in ODI and Ford data is flat if not declining. Ford provides instructions and warnings in the owner's manual, on a placard placed with the jack, and on the jack itself. These instruct consumers to put the vehicle gear selector in Park, properly set the parking brake, chock the opposite wheel, use the jack only for changing a tire, loosen the lug nuts prior to jacking, and to not get under a vehicle supported by the jack only (NHTSA also recommends that jacks only be used for tire changing). In the VOQs, roughly half the consumers were using the jack for something other than tire changing, half had not chocked a wheel, and half had not properly set the parking brake. ODI notes that since the front wheels are drive wheels (with an open center differential) the Pa
About This Investigation Type
A Preliminary Evaluation (PE) is the first phase of NHTSA's investigation process. It is opened when the agency identifies a potential safety defect pattern, usually triggered by consumer complaints, manufacturer reports, or field monitoring. During a PE, NHTSA gathers information to determine whether a formal engineering analysis is warranted.
Data from NHTSA Office of Defects Investigation. Cross-references: NHTSA recall campaign API and NHTSA FARS where fatality records overlap. PlainCars does not rate or recommend vehicles. about how PlainCars sources NHTSA data.
Read our methodology - how this data is sourced, computed, and verified.