NHTSA Office of Defects Investigation
Preliminary Evaluation PE11-013: Rear Suspension Control Arm Failure
- Closed
NHTSA's Office of Defects Investigation opened Preliminary Evaluation PE11-013 on April 18, 2011 and closed it on September 15, 2011, the day it opened Engineering Analysis EA11-013, which this investigation's summary cites. NHTSA's investigations file lists the 2002–2005 Jeep Liberty for it.
Updated daily from NHTSA's investigations file
Key facts
- NHTSA number
- PE11-013 (also written PE11013)
- 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 September 15, 2011
- Opened
- Closed
- Vehicle or equipment manufacturer
- Chrysler (FCA US, LLC)
- Component
- Suspension — Rear
- Vehicles and equipment
- 2002–2005 Jeep Liberty
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 PE11-013.
During Preliminary Evaluation (PE11-013), the Office of Defects Investigation (ODI) conducted an analysis of consumer field data from its Vehicle Owner Questionnaire (VOQ) database and from complaint data submitted to ODI by Chrysler. ODI's analysis of VOQ data identified 13 complaints alleging failure of either the right or left rear lower control arm due to excessive corrosion.
All of these complaints were associated with vehicles originally sold or registered in a salt belt state (for the purposes of this investigation, 'salt belt' includes Connecticut, Delaware, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia, Wisconsin and the District of Columbia).
All of the complaints were associated with vehicles manufactured in model years (MY) 2004 or 2005. Three of these complaints also allege a loss of vehicle control due to the rear lower control arm failure. No complaints related to the alleged defect were identified on vehicles manufactured during MYs 2002 or 2003. Similarly an analysis of Chrysler complaint data identified 11 complaints (2 of which are duplicative of VOQs) alleging failure of a rear lower control arm due to excessive corrosion.
All 11 of these complaints were from consumers operating vehicles in a salt belt state and vehicles manufactured in either MY 2004 or 2005. Three of these complaints (not duplicative of VOQs) also allege a loss of vehicle control due to the rear lower control arm failure.
The original scope of PE11-013 included MY 2002 through 2005 Jeep Liberty vehicles as they were in the same generation.
In response to an Information Request (IR) letter sent by ODI, Chrysler provided information and sample components identifying a substantial design change of the rear lower control arms after MY 2003 and beginning with MY 2004.
Analysis of complaint data from both data sources (ODI and Chrysler) did not identify any applicable complaints (lower control arm failures due to excessive corrosion) from vehicles manufactured during MY 2002 or 2003.
Similarly no complaints from either data source were found in states outside of those identified as salt belt states.
Chrysler stated in its IR letter response that its investigation and analysis is ongoing to determine the scope, possible root causes of the unusual lower control arm corrosion, and define possible consequences to motor vehicle safety. Based on ODI's data analysis from both sources (ODI and Chrysler data), this investigation has been upgraded to an Engineering Analysis (EA11-013) focused on vehicles originally sold or registered in a salt belt state and produced during MY 2004 and 2005, to further assess the scope and potential safety consequences of the alleged defect.
Vehicles and equipment listed for this investigation
NHTSA's investigations file lists these vehicles and equipment for Preliminary Evaluation PE11-013. 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.
Jeep
All Jeep 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.
Jeep VIN check: decode a VIN to see its year, make and model.
Sources
NHTSA's investigation record for PE11-013
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.