Jeep Wagoneer loss of power problems

Filed Oct 30, 2026 · Engine, Transmission · 93,392 miles · IN

Issues began on 9/29/26 - The transmission was slipping and failed to shift numerous times when accelerating causing a loss of power. This happened several times at highway speeds when passing. Warning lights came on after this issue occured. This issues happend several times over the course of about a month. These issues put my safety at risk multiple times when I was suddenly not able to accelerate to pass or in some instances not able to accelerate to enter the interstate. This issue also occured at a low speed in stop and go (interstate) traffic. The vehicle would not shift out of 1st gear and I was forced to drive on the interstate at a dangerously low speed until I could exit the interstate. Warning lights came on due to this issue. The Jeep dealership assessed the vehicle and determined that the transmission needed replaced. The transmission was replaced at a certifed Jeep Dealership. The vehicle was tested, deemed repaired, and returned to me. The next day the same issue occured where the transmission would slip, grind, and then lose power. That same day the vehicle lost power completely while driving. The engine shut off while I was driving. When I pulled over began to slow the vehicle automatically and abruptly shifted itself into park. This again put my safety at risk by the loss of power while driving and unexpectedly shifting into park. The vehicle is currently at the same Jeep Dealership being assessed. I

Filed Oct 6, 2026 · Electrical, Engine · NC

I am writing to formally submit a dangerous and sudden electrical system failure on my 2024 Jeep Wagoneer. I purchased this vehicle brand new from Lee Jeep in Wilson, NC and it currently has only 38,000 miles—just 2,000 miles past the standard factory bumper-to-bumper warranty. This issue represents a severe safety hazard and appears to be a direct, consequential chain reaction resulting from a dealer-performed service and software flash completed just 1,000 miles ago. Chronology of Events: 37,000 Miles: The vehicle's thermostat failed. Lee Jeep replaced the thermostat and performed a required computer system software update. 38,000 Miles: Immediately following these updates, the vehicle began completely shutting down and stalling at stoplights and stop signs. Simultaneously, the Electric Power Steering (EPS) completely cut out, leaving me stranded in active traffic with heavy, unassisted steering. Current Status: The dealership diagnosed a blown main engine fuse and is demanding $450 to replace it. They have refused to cover this under a goodwill adjustment, claiming their local branch "cannot do it." A full vehicle shutdown and loss of power steering at intersections puts my life and the lives of my passengers at immediate risk. Unresolved Root Cause: A high-amperage engine fuse does not blow without an underlying cause. I am deeply concerned that charging $450 to swap a fuse without diagnosing the systemic current spike—likely tied to the recent software update or the auxiliary stop-start battery logic—will leave me stranded again. Proximity to Warranty: Given that the vehicle is a 2024 model and barely past the 36,000-mile mark, a catastrophic electrical failure of this nature should be covered by the manufacturer.

Filed Oct 1, 2026 · Electrical · AR

My 2022 Jeep Wagoneer has experienced four separate incidents of complete power loss while being operated. During these events, the electrical displays went dark and electrical functions stopped working on the entire vehicle On [XXX], the vehicle lost all power while I was pulling into my garage. It would not release from Park normally and required wheel skates and towing. The dealership replaced the battery, but the symptoms later returned. On [XXX], the vehicle lost all power while traveling approximately 20–30 mph near [XXX] and [XXX] in heavy holiday traffic. I could not reach the shoulder and stopped in a turning lane without a collision. The vehicle required towing. The dealership told me it performed a computer reset and software update. In approximately February 2026, associated with a February 11 service entry, the vehicle again lost power while driving. I was able to restart it and drive to the dealership. My recollection is that I was told another reset/software update was performed, although the online service summary says “Check Battery.” On [XXX], the vehicle lost all power while traveling approximately 35–40 mph on [XXX]. I was able to pull into a service station, restart the vehicle, and deliver it to Chris Crain Chrysler Dodge Jeep Ram in Benton, Arkansas, that day. As of September 30, 2026, the vehicle had remained at the dealership for 33 days without a completed repair communicated to me. A dealership representative, Kim, told me by telephone that technicians had reproduced the failure, suspected an electrical component or connector short, and contacted Jeep engineers. I do not have a confirmed written diagnosis. I am concerned that another unexpected complete power loss in traffic could cause a collision. Similar symptoms have recurred after prior repair efforts, but they all share the same underlying cause. I request review of these incidents as a potential safety defect. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Sep 28, 2026 · Electrical, Engine · AR

To Whom It May Concern, I am writing to report a serious safety concern involving my Jeep Wagoneer. The vehicle has experienced intermittent stalling issues, creating a hazardous driving situation and leaving me stranded. The vehicle unexpectedly stalled, causing a loss of power and leaving me without reliable transportation. Given the potential safety risks associated with a vehicle stalling while in operation, I am extremely concerned about the possibility of this occurring again, particularly in traffic or at highway speeds. Adding to my frustration, after contacting the dealership for assistance, I was informed that it would be approximately eight days before the vehicle could even be inspected. A delay of this length for a vehicle experiencing a potentially dangerous drivability and safety issue is unacceptable and leaves me without confidence in the safety and reliability of the vehicle. I am requesting that this matter be investigated promptly and that appropriate action be taken to address the stalling condition. I also believe this issue warrants review for any potential broader safety concerns affecting other Jeep Wagoneer owners. Please document this complaint and advise me regarding any available assistance, escalation options, or known remedies related to this condition. Thank you for your attention to this matter. I look forward to your prompt response.

Filed Sep 12, 2026 · Electrical, Engine · MI

Within less than 24 hours of picking the vehicle up from the thermostat repair on XXX6, it began shutting off on its own and losing engine RPM, including while being driven on the freeway and while stopped at a red light. It shut off completely on its own two times in the first 24 hours back in my possession, with no warning that the vehicle was about to lose power. Losing power on the freeway risks a sudden loss of motive power at highway speed and a high-speed collision, and shutting off at a red light risks being unable to move out of an intersection or accelerate away from a hazard, with a heightened risk of being struck. During these failures the vehicle displayed a battery warning code and, separately, a "service transmission" warning; both appeared and then cleared. These symptoms first appeared on XXX, within hours of the vehicle being returned from the prior repair. The failures have not yet been reproduced by a service center; the vehicle is scheduled to return to the place of purchase, Grogans Town Dodge Jeep Ram on XXX for diagnosis, and the same vehicle was in this dealership's service department of another dealership 2 hours from our home because thats where we were when the thermomstat issue occured on XXX for the separate cooling-system failure. The vehicle is available for inspection on request. Mileage: approximately 78,000. VIN: [XXX]. (For context only: I have since learned that 2024 Jeep Wagoneers have been reported to have a battery/electrical drain issue that can cause the vehicle to shut off.) INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Aug 30, 2026 · Electrical · GA

Vehicle Information: 2022 Jeep Wagoneer (5.7L V8 eTorque Mild-Hybrid System)Component Affected: Electrical System / Hybrid Propulsion System Defect: My 2022 Jeep Wagoneer continuously experiences sudden engine stalling and unexpected shutdowns while operating in Auto Start-Stop mode. When the vehicle comes to a complete stop at a red light or intersection, the engine shuts off normally to save fuel. However, when I release the brake pedal to accelerate, the vehicle fails to restart automatically. Instead, the vehicle suffers a total loss of power, drops the transmission directly into Park (P), and abruptly engages the emergency parking brake. This creates an immediate, severe safety hazard as it leaves me completely stranded in active traffic and at busy intersections. To get moving again, I am forced to completely cycle the push-button ignition manually. Additionally, the vehicle regularly fails to remote-start, turning itself off immediately due to the electrical fault. A diagnostic scan reveals DTC P0B42 (Hybrid/EV Battery Voltage Sense "B" Circuit Low). This dangerous stalling pattern directly matches the active federal probe under the federal safety agency Investigation PE24018 regarding 2022 Jeep Wagoneer 48-volt electrical and power distribution failures.

Filed Aug 25, 2026 · Engine, Steering · KS

Vehicle shut down 4 times in traffic almost causing an accident each time loss of power and steering. This all occurred in 1 day.

Filed Aug 3, 2026 · Electrical, Engine · MO

I own a 2022 Jeep Wagoneer with the 5.7L HEMI eTorque system. The vehicle has lost all power while being driven on two separate occasions. The first occurred on October 22, 2025, on a major interstate. The second occurred on January 30, 2026, on a state highway. In both cases the engine shut off without warning while the vehicle was in motion, with my wife and four children aboard. Power steering and braking assist were lost. The vehicle locked into Park, and I could not get power to shift into neutral or restart it. The January 30 incident required towing. The vehicle was inspected by a mechanic, who was unable to replicate the problem. Since the second failure, I have observed that system voltage drops rapidly during normal driving on nearly every trip. To avoid another shutdown in traffic, I now monitor voltage and pull over to shut the engine off and restart it once it reaches 12.4V. This takes several efforts each trip to pull over and restart the system. It has produced anxiety in my family about the safety of this vehicle. This is a full-size SUV losing power in highway traffic without warning. It endangers my family and every driver around us. I am aware of ODI Preliminary Evaluation PE24018 covering this vehicle and system, and I am submitting this so my incidents are part of that record.

Filed Jul 27, 2026 · Electrical, Engine · MO

While driving on the highway going 70 mph, the vehicle lost all power and shut down engaging the automatic emergency brake system. This is the second time it has happened. Car is currently at dealership awaiting service.

Filed Jul 9, 2026 · Engine · CA

While driving at low speed, the vehicle suddenly shut down completely without any warning. The engine lost power while I was cruising, causing the vehicle to stop responding. On separate occasions, the vehicle has also shut off while idling. This condition creates a serious safety concern because the vehicle can stall unexpectedly in traffic, increasing the risk of a collision. The issue has occurred multiple times and appears to be happening everytime i drive the vehicle. It started nov of 2025 up to now dealership cannot fix the problem.