NHTSA Office of Defects Investigation
Defect Petition DP18-004: Frame Weld Deficiencies
- Closed
NHTSA's Office of Defects Investigation opened Defect Petition DP18-004 on November 16, 2018 and closed it on September 17, 2019. NHTSA's investigations file lists the 2018–2019 Jeep Wrangler for it.
Updated daily from NHTSA's investigations file
Key facts
- NHTSA number
- DP18-004 (also written DP18004)
- Investigation type
- Defect Petition A petition asking NHTSA to open a defect investigation; NHTSA grants or denies it, and granting one opens an investigation.
- Status
- Closed September 17, 2019
- Opened
- Closed
- Vehicle or equipment manufacturer
- Chrysler (FCA US, LLC)
- Components
- Steering; Structure — Frame and Members
- Vehicles and equipment
- 2018–2019 Jeep Wrangler
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 Defect Petition DP18-004.
In a letter received on October 24, 2018, a citizen petitioned the National Highway Traffic Safety Administration (NHTSA) to initiate a safety defect investigation into frame weld deficiencies on model year (MY) 2018 'JL' Jeep Wrangler vehicles. The petitioner described a broad list of frame weld deficiencies, including porous welds, excessive slag, lack of weld penetration, over penetration of welds, overweld or weld drip, and weld splash. The weld defects are allegedly located at a variety of locations on the frame assembly.
On November 16, 2018, the Office of Defects Investigation (ODI) opened a Defect Petition (DP18-004) to evaluate whether to grant or deny the petition. On March 8, 2019, ODI sent an Information Request letter to Fiat Chrysler Automobiles (FCA) requesting information on frame weld related issues on all MY 2018-2019 Jeep Wrangler 'JL' vehicles. Due to a previous steering related recall that was caused by a misaligned weld on the front track bar (NHTSA Recall No. 18V-675), ODI opted to include a request for additional information concerning reports of steering shimmy or wobble, loose steering, and steering lockup in the March request letter. ODI has performed a preliminary analysis on the information obtained from FCA. Based on ODI's review of the applicable materials, NHTSA has decided to grant the petition. While reviewing the applicable materials obtained from the manufacturer, ODI identified various reports and references to frame welded component detachments that were outside of the scope of NHTSA Recall No. 18V-675. Additionally, the information that FCA provided did not adequately address whether frame weld quality deficiencies compromise the structural integrity of vehicles, and therefore may pose an unreasonable risk to motor vehicle safety. Finally, ODI needs to further evaluate the alleged steering-related defects reported through MY 2019 and the alleged defects' relation to weld quality.
The petition was granted on September 16, 2019. Preliminary Evaluation PE19-012 has been opened to further assess the scope, frequency, and potential safety-related consequences of alleged weld quality deficiencies and steering related concerns on the MY 2018-2019 'JL' Jeep Wrangler vehicles.
The ODI reports cited above can be viewed on NHTSA.gov under the following reference numbers:11234967, 11222390, 11219370, 11217080, 1204905, 11179954, 11171786, 11161243, 11155523, 11153044, 11143617, 11142722, 11142426, 11141336, 11141035, 11140637, 11140344, 11140262, 11140085, 11140057, 11139880, 11139866, 11139557, 11139467, 11139436, 11138974, 11138758, 11138757, 11132030, 11129738, 11129667, 11124312, 11120232, 11119676, 11119650, 11119454, 11119450, 11115658, 11115137, 11113029, 11112515, 11110583, 11109903, 11093172, 11088501, 11076098
Vehicles and equipment listed for this investigation
NHTSA's investigations file lists these vehicles and equipment for Defect Petition DP18-004. 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 DP18-004
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.