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NHTSA defect investigation · Preliminary Evaluation

Jeep and Ram preliminary evaluation PE24018

Engine Stall With Intermittent Restart. NHTSA’s Office of Defects Investigation opened this preliminary evaluation about the 12v/24v/48v battery on 2 model years (2022). Opened Jul 19, 2024 and still open — 2.2 years so far, against NHTSA’s goal of eight months for a preliminary evaluation. open

What NHTSA says

Source: Office of Defects Investigation, as filed

The Office of Defects Investigation (ODI) has received 80 consumer complaints alleging an engine stall and loss of motive power on model year (MY) 2022 RAM 1500 pickup trucks and 2022 Jeep Wagoneer SUV vehicles. The particular engines in the subject vehicles are equipped with the Fiat Chrysler Automotive Group LLC (FCA) 5.7L Hemi eTorque system. The eTorque system is a mild hybrid system that lets the vehicle partially power itself. It accomplishes this by converting the captured energy from the braking system into electricity for the battery pack, which is then used to power a variety of electrical components. ETorque engines replace the alternator with a 48-volt battery-powered belt drive and a motor generator. The motor generator provides extra torque to the crankshaft during gear changes. Simultaneously, the motor generator uses the 48-volt battery pack to increase torque. Many of the complaints state that the vehicle's engine would shut off, often while travelling at slow speed, the vehicle would shift into park and apply the emergency brake. The vehicles were sometimes able to be restarted. In addition, complaints state that the malfunction warning light with the battery fault symbol appeared on the dash.  Many complaints state that a low voltage condition fault is present, sometimes not being able to restart the vehicle. On April 13, 2023, FCA announced recall 23V-265 describing a defect in certain 2021 Ram 1500 vehicles equipped with 5.7L eTorque engines.  The recall described a defect in the powertrain control module software can cause an incorrect fuel mixture condition in the engine, and result in an engine stall. In February of 2024, ODI provided the complaints on the 2022 Ram 1500 and Wagoneer vehicles to FCA. After reviewing the complaints, FCA stated that “the loss of motive power was likely not caused by an over rich fuel condition (as outlined in recall 23V-265), but rather some other cause (e.g., an electrical concern that causes the engine to shut down).� A Preliminary Evaluation has been opened to assess the scope, frequency, root cause(s) and consequences of these loss/stall of motive power incidents.  Additionally, ODI may expand the scope of the subject population during the investigation, if needed. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.

Stage Preliminary Evaluation — NHTSA works to complete one within eight months Opened Jul 19, 2024 Closed still open Manufacturer Chrysler (FCA US, LLC) Components Electrical System › 12V/24V/48V Battery, Electrical System › Alternator/Generator/Regulator, Electrical System › Body Control Module/Bcm, Electrical System › Body Control Module › Software, Electrical System, Engine And Engine Cooling › Engine › Engine Control Module (Ecu/Ecm)

A Preliminary Evaluation is the first formal stage: NHTSA has decided the complaints and other information it screened are worth a closer look, and asks the manufacturer for its own data on the condition. The summary is the agency’s own text from its investigation file, unedited; the opening and closing resumes with the full reasoning are on NHTSA’s site under this number.

What this means for an owner

Source: and what happens next

An investigation is not a finding that a defect exists, and it puts no duty on anyone. NHTSA opens a Preliminary Evaluation when complaints and other reports suggest a condition worth asking the manufacturer about; it upgrades to an Engineering Analysis when the answers warrant testing; it closes either when it recommends a recall, when the manufacturer recalls on its own, or when no defect trend is found. The agency’s own goals are about four months for a petition, eight for a Preliminary Evaluation or a Recall Query and eighteen for an Engineering Analysis; many run longer.

This one is open. Nothing is owed on the vehicle today; if it becomes a recall, owners are written to and the repair is free. The moment to know is the day the campaign number appears — Recall Watch checks each VIN against every new NHTSA campaign and emails you when one lands, or take a free one-line alert by model year.

Model years it names

Source: as NHTSA filed them

A vehicle page’s investigation list carries the same action; a name here is the scope NHTSA opened, not a list of affected VINs.

Common questions

Source: NHTSA Office of Defects Investigation

Is PE24018 a recall?

No. A preliminary evaluation is NHTSA asking questions, not a recall. A safety recall carries an NHTSA campaign number and a duty to repair for free; this one has not produced one. Whether one particular vehicle has an open recall is a VIN question at nhtsa.gov/recalls.

Is PE24018 still open?

Yes, as of NHTSA’s latest file: opened Jul 19, 2024, 2.2 years ago.

Which vehicles does PE24018 cover?

NHTSA opened it on 2 model years: 2022 Jeep Wagoneer, 2022 Ram 1500. That is the scope of the inquiry, not a list of affected vehicles; a recall, if one follows, defines its own population by VIN.