Plug-in hybrid Jeep Wrangler owners have received an unusual instruction from the manufacturer: leave the vehicle outside, away from the house, the garage and other cars, and stop plugging it in. The advisory traces back to a defect in the high-voltage battery pack that can fail internally and ignite a fire whether the ignition is on or off, and it has followed the Wrangler 4xe through three successive recall campaigns as the scope of the problem widened.
Federal filings show the guidance has stayed remarkably consistent even as the affected population grew from tens of thousands of vehicles to more than 300,000, a pattern that traces a defect regulators and the manufacturer still have not fully diagnosed.
A 2023 Recall Began With Two Field Reports of Fires
Chrysler (FCA US, LLC), the Stellantis subsidiary that builds Jeep-brand vehicles, opened its investigation in May 2023 after receiving two field reports of 2021 model-year Wrangler 4xe plug-in hybrids catching fire with the source traced to the high-voltage battery. By September 2023 the company had logged seven battery-related fire reports and requested buybacks of the affected vehicles for teardown analysis. That work led to a voluntary recall, filed with NHTSA as campaign 23V-787, covering about 32,125 Wrangler 4xe vehicles built between September 2020 and March 2023 with battery cells manufactured in a specific nine-month window in 2021.
The Remedy Instructions Told Owners to Park Away From Structures
The original 2023 recall notice was direct about the interim risk: owners were told to refrain from recharging their vehicles and not to park them inside garages or other structures, or near other vehicles, until a permanent fix was completed. The initial remedy was a software update to the battery pack control module, with a full battery replacement reserved for vehicles that failed a diagnostic integrity check afterward. Dealers were barred from delivering any new or used vehicle covered by the recall until that check was completed, a restriction carried into each of the later, larger recalls as well.
The Root Cause Still Has Not Been Identified
More than two years after the first fire reports, the manufacturer has not identified the underlying defect in the battery cells. Each successive recall filing has described the cause as unidentified and the investigation as ongoing, even as the company narrowed the fire risk to internal separator damage inside the high-voltage cells that can develop into a short circuit. That unresolved diagnosis is part of why the park-away-from-structures guidance has persisted rather than being lifted once a fix was issued, a pattern visible across the successive campaigns logged in NHTSA’s public recall lookup for the 2021 Jeep Wrangler.
Fires Kept Happening on Vehicles That Already Had the Fix
The 2023 software fix did not hold. Between June and July 2024, the manufacturer received three reports of battery fires on Wrangler 4xe vehicles that had already received the original software remedy, leading the company to conclude that fix was ineffective at detecting the abnormalities inside the battery that can precede a fire. A renewed investigation, opened after two additional fire reports outside the original recall’s scope, tied the defect to cells built with a specific type of internal separator damage that a battery supplier later linked to complex reactions inside the cell itself. By September 2024, the company counted 13 field reports and two injuries connected to the issue, along with 13 separate customer assistance records and one warranty claim tied to the same battery packs.
A 2024 Recall Expanded to the Grand Cherokee 4xe
That renewed investigation produced a second recall, campaign 24V-720, filed in September 2024 and covering 154,032 vehicles: 118,230 Wrangler 4xe models from 2020 through 2024, plus 35,802 Grand Cherokee 4xe models from 2022 through 2024 built with battery packs from the same suspect production window. The filing was explicit about why depleting the battery lowers the danger: vehicle fire risk is reduced when the battery charge level is low, which is why owners were told again to stop recharging and to park away from structures or other vehicles until a working remedy was available.
Owners Are Still Waiting on a Remedy That Works
A third filing arrived in November 2025, campaign 25V-741, widening the affected population to 320,065 Wrangler 4xe and Grand Cherokee 4xe vehicles across model years 2020 through 2026. The manufacturer’s own paperwork acknowledges there is still no finished repair: interim letters describing the fire risk were expected to reach owners in early December 2025, with a second round to follow only once a final remedy is validated. Until that remedy exists, the standing advice for owners of an affected plug-in Wrangler or Grand Cherokee has not changed since the first recall in 2023: keep the vehicle unplugged and parked in the open, away from the house and away from anything else that could catch fire alongside it.
This article was produced with the assistance of AI and reviewed by Morning Overview editors prior to publication.
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