Power Train Problems of Jeep Wrangler - part 1

- the all electric drive system intermittently fails. The vehicle drive shuts down and stops suddenly when decelerating to a stop in full electric mode while in drive. The vehicle "drive" light on the gear shift then starts flashing when the drive system shuts down. Vehicle motors lock up and the vehicle comes to an abrupt stop. The vehicle then has to be shifted into park, and then back into drive, in order for it to re-engage. The incidents happened at all different levels of soc - from 98% charge to 1% charge. All happened at different times of day. Temperatures between 73-85 degrees. All in daylight with different sun/clouds. Yes it is available for inspection upon request. - safety is an obvious issue when the vehicle comes to a compete and sudden stop in traffic unexpectedly. - yes the problem has been reproduced and confirmed my an independent automotive engineer. I am an experienced professional automotive test driver/engineer for multiple oem's. - not as of this time. It is due for service on Thursday July 2nd for its 78c recall completion. At that time, I will have the dealership inspect it. - there were no warnings of any kind prior to each failure. I have only owned the vehicle for 14 days, and in that time, the issue has repeated 6 times. All when in full electric/battery mode, or, when in hybrid mode but the vehicle was operating solely on electric propulsion and the ice was not on or engaged.

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On 6-22-26 at approximately 1035 am, I was traveling southbound on rte 140 in taunton. I was in the left lane, traveling at a speed of approximately 55 mph. The Jeep was in electric mode. I attempted to accelerate so that I could get around a tanker truck. I pressed down on the accelerator, but my speed only went up to 56 mph before slowly starting to come down. I pressed harder on the accelerator, but my speed continued to drop. There was a vehicle traveling close behind me that was clearly getting aggravated by my slow speed (posted 65mph zone). I came off the accelerator and moved into the right lane. At this point the gas engine finally came on and gave me additional acceleration power.

While driving, regardless of whether at neighborhood or highway speeds, my Jeep Wrangler 4xe suddenly loses drive power without warning. Electric propulsion drops in stages — to about 50%, then 25% — then the dash displays "electric mode temporarily unavailable" and the vehicle forces itself into hybrid mode. When this happens, I press the accelerator and get little or no response for several seconds before the gas engine engages. This is a serious safety hazard when merging or pulling into traffic. I have had a couple of close calls due to the lack of acceleration. It is repeatable and occurs during normal driving. This all began after having the 68c recall performed. Also, while driving in electric mode at highway speeds, the engine constantly starts and stops, causing a lurching each time. In other instances, when the acceleration is lagging, and the engine does start and engage, the vehicle accelerates more than expected, which could be a serious safety risk.

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The contact owns a 2018 Jeep Wrangler. The contact stated that while driving 20 miles away after an hour, the vehicle lost power steering and power braking functionality, and the transmission unexpectedly downshifted to a lower gear. The vehicle was turned off. The check engine warning light was illuminated. The vehicle was towed to the residence. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 91,300.

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Was traveling approximately 55 mph down the highway for 15 min in electric mode. Moved to the shoulder and stopped quickly using regenerative braking for an oncoming emergency vehicle. I got back on the highway and I suddenly lost almost all pedal response and it would not accelerate. I kept pushing the accelerator pedal harder and harder. That's when the ice kicked on and there was a sudden violent lurch forward and the engine was screaming at over 5000 rpm. There were cars approaching behind me and they had to suddenly stop and they honked horns and avoid hitting me. This sudden throttling of the battery/electric and very erratic switch over to ice is dangerous.

1. The vehicle caught fire during normal operation. It is a 2021 Jeep Wrangler (VIN [xxx]) subject to fca us recall 21d / NHTSA campaign 26v363000, which identifies the electric hydraulic power steering (ehps) pump and its wiring as a fire source that can overheat and ignite. The exact failed component has not yet been confirmed by diagnostic, but the fire is consistent with the defect described in that recall. The vehicle is intact and available for inspection — it was towed to waxahatchie Jeep, an authorized stellantis dealer in waxahachie, TX, on June 19, 2026 and remains in their custody under repair order [xxx]. 2. The vehicle caught fire while being driven on the highway between waxahachie and ennis, texas, with two occupants returning from a boy scout trip, my husband, the driver, and our [xxx] son. The driver was forced to take evasive action, steering off the roadway into a service station to get the occupants clear and stop the fire from spreading further. This created a serious risk of burns, of a collision during the evasive maneuver, and of harm to the occupants and other motorists. 3. Has the problem been reproduced…? no. No diagnostic has been performed. The vehicle has been in the authorized dealer’s custody since June 19, 2026 ([xxx]), but the manufacturer has not completed an inspection or diagnostic. The underlying defect is the subject of an active recall (21d / 26v363000) affecting more than one million 2021–2025 Jeep Wrangler and gladiator vehicles, for which the manufacturer has stated no remedy is yet available. 4. The vehicle was towed by aaa to waxahatchie Jeep on June 19, 2026 and has remained there since. It has not yet been formally inspected or diagnosed by the manufacturer. 5. There were no warning lamps or messages prior to the fire. The first indication of a problem was smoke from the engine area at which point the driver immediately pulled off the road and saw a plume of smoke coming from the exhaust. Information redacted pursuant to the freedom of information act (foia), 5 u. S.

On [xxx] at approximately [xxx] pm I was at the intersection of [xxx] and [xxx]. When the light turned green I attempted to make a left turn. The Jeep was in e-save mode, but the gas engine was not on at the time. I stepped on the accelerator, but the vehicle moved very slowly through the turn, no matter how hard I pressed down on the accelerator (electric motor engaged at this time). I feared that I would get struck by other vehicles due to the very slow rate of speed. When I cleared the intersection, the gas motor finally turned on and supplied me with the required amount of acceleration. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

After the latest 68c recall fix, Jeep has adjusted the behavior of how the vehicle's electric mode operates. When the battery gets to a certain temperature when driving, the engine is supposed to turn on (to prevent the fire risk hazard). However, instead of the vehicle making the powertrain switch, the vehicle power will just stop. The pedal will go to the floor but no forward movement. It is dangerous in many driving situations, like the highway or among other vehicles when mine unexpectedly stops. Jeep has tried to fix this exact issue in 3 separate recalls, but it still occurs. They should buy back the vehicles as they seem to not be able to fix and they are not safe to drive.

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This is apparently an ongoing problem with all Jeep 4xe's that have passed the 68c recall. The vehicle will no longer operate in "electric" mode in normal driving conditions, this is our second Wrangler 4xe and we have a total in excess of 50k miles of typical driving in "electric" mode. The vehicle will no longer function safely in "electric" mode as it did prior to the recall, it now fails to accelerate for minor hills and slows down to the point of causing following vehicles to come dangerously close to the rear of the vehicle. After a long delay with the pedal now to the floor and the vehicle slowing further as it's trying to go up an incline the ice (gas engine) violently starts and lurches forward in an unnatural manner. The response by stellantis is that this is "normal" operation of the vehicle. I can 100% tell you this is not normal as neither of our 4xe's operated in this manner prior to the recall. I can only imagine what would happen if we attempted to merge into traffic or try to cross an intersection and this "normal" operation happened.

While driving in ev mode my Wrangler 4xe starts to limit power when the battery falls below 50%. The dash display which shows power output clearly starts to limit around 75%, then 50% once the battery hits 40-45% and then even lower as the battery depletes. This makes the car barely powerful enough to hold 50mph and it cannot even climb a hill and hold speed. Then the engine abruptly kicks on in the high 30% battery soc and ev mode is locked out until you charge it or park, turn it off and let it cool off. This is after the latest battery recall that Jeep performed. They seem to be limiting the battery output at lower soc to protect the battery but this means I am no longer able to operate the car I purchased in the way it was designed to originally, the way it was marketed, or even safely on a main road with moderate speeds without the engine kicking on. It is also limiting overall power which means I'm not getting the advertised hp and torque ratings. Jeep needs to do a real fix for the battery issue and not just a software band-aid.

Our Jeep 4xe underwent the recall for the hybrid battery. The battery was replaced in may 2026, since then the vehicle hesitates to accelerate at speed causing a safety concern. This vehicle has been recalled so many times we have no confidence in the vehicle.

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While driving my 2024 Jeep Wrangler 4xe on the garden state parkway and approaching traffic on the driscoll bridge, a turtle warning icon suddenly appeared on the dashboard, indicating limited vehicle performance. Moments later, the dashboard displayed a message instructing me to "shift to park. " immediately after this warning, the vehicle suffered a complete hybrid/electrical system failure and lost all motive power. The vehicle became completely unresponsive, and I was unable to accelerate, move the vehicle, or restart it. The vehicle came to a stop in an active travel lane of the garden state parkway on the driscoll bridge, leaving me stranded in live highway traffic. This created an immediate and serious safety hazard, as vehicles were approaching from behind and I was exposed to the risk of a high-speed rear-end collision. The vehicle could not be moved under its own power and had to be removed from the travel lane and towed to a nearby parking lot. Roadside assistance later performed a battery reset, which temporarily restored vehicle operation and allowed me to drive the vehicle home. No permanent repair was performed, and the cause of the failure remains unresolved. The vehicle currently has multiple open safety recalls, including recall 68c involving the high-voltage battery system. Stellantis has also recently announced an additional recall involving electric hydraulic power steering pump wiring and fire risk. The primary defect is the sudden loss of propulsion and complete electrical/hybrid system shutdown while driving, resulting in the vehicle becoming disabled in active highway traffic without warning. This defect created an immediate risk of a serious crash and could have resulted in severe injury or death.

In June 2025, I had the clutch recall (NHTSA 23v-116) performed on my 2019 Jeep Wrangler at autonation Jeep southwest in littleton colorado. Prior to this recall repair, the vehicle had no transmission faults or warning lights. Following the recall work, I began experiencing a recurring 'service transmission' warning. On a return visit, the dealership discovered they had incorrectly reinstalled the shifter cables during the recall repair, making it difficult to shift into first gear. The cables were redone. The 'service transmission' warning continued after the cable rework. The dealership performed a software flash on a subsequent visit, which did not resolve the issue. The vehicle later experienced a 'service transmission' warning accompanied by a clutch overheat alert and limp mode activation. The dealership has since diagnosed fault codes p082c and p082f (gear lever position sensor circuit high) and is recommending a transmission range sensor replacement at my expense. The dealership has acknowledged they cannot confirm the root cause of these codes. When I contacted Jeep customer care, they called the dealership and accepted their assessment that the issue is unrelated to the recall repair. I believe the ongoing fault codes are a direct result of the defective recall remedy, specifically the incorrect shifter cable installation and subsequent cable disturbance during rework. I am requesting NHTSA investigate whether the recall remedy as performed at this dealership is defective.

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Jeep engine stopped running while driving on high way 20. Had to coast to stop in middle of side street. Jeep did start back up but would not go into drive until an hour of trying to get it into gear. Drove it home. Next morning I started Jeep but would not go into drive. It was stuck in park.

On April 17th 2024 my vehicle received a recall update 68c regarding the plug-in hybrid electric vehicle battery. Two days later, I was driving on a major freeway in southern California, noticed that the ev battery was not being depleted as it remained at 100%. Shortly thereafter, a check engine light came on, and the power was severely restricted. Within a few minutes, the vehicle completely lost power in the middle of the freeway and I was able to get over to the right shoulder. At this point, the vehicle had no power and I could not turn the vehicle off either regarding the electronics. I had the vehicle towed to the dealership in san diego, and by the time it was at the dealership, the vehicle was in full lockout mode and had zero battery power left and could not even lock the doors. This caused a significant safety hazard as I was with my [xxx] child and the vehicle just completely lost power on the freeway. The vehicle is now at the dealership and they are giving me a very hard time saying that there is nothing wrong with it, but I have read that there have been many problems with this recall update. The dealership told me that the problem was a bad 12 v battery and that I needed to pay to replace that and I argued with them that that was not the problem and they are not addressing the major issue with a complete power loss on the freeway after a required software update that has known problems. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

I was driving 70-75 mph on interstate xxx going south from [xxx] to [xxx] after picking up my friends. I had e-save mode on to save the battery for later and out of nowhere the car lost all power and would not accelerate. Some writing flashed across the screen telling me to pull over in the emergency lane and stop and then restart the Jeep in hybrid mode. I had to throw on my hazards and pray someone who wasn't paying attention didn't hit me while I was no longer accelerating and trying to change lanes to get into the emergency lane. One in the emergency lane I was able to shut off the Jeep and restart it but e-save mode was no longer available. I was able to resume driving but only in hybrid mode. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Safety complaint following recall 68c (NHTSA recall number 24v-111 / mopar 68c) I am the owner of a 2022 Jeep Wrangler rubicon 4xe. Prior to having safety recall 68c performed, the hybrid system functioned flawlessly. Immediately upon receiving the vehicle back from the dealership after the 68c software flash, a severe drivability and safety hazard emerged. When driving in standard hybrid/electric mode, the vehicle experiences a sudden loss of power, hesitation, and a physical 'bogging down' sensation. Following this lag, the vehicle violently surges into gasoline mode, causing a sudden and unpredictable acceleration lurch after the vehicle hesitates to accelerate. This behavior occurs randomly at both low neighborhood speeds and highway speeds, making it impossible to smoothly modulate throttle input. This creates an immediate safety hazard when attempting to pull out into cross-traffic, merge onto highways, or maintain a safe, predictable following distance. The vehicle hesitates when throttle is demanded, creating a risk of being rear-ended, followed by an uncommanded surge. The dealership states the vehicle is 'operating as designed' according to a regional Jeep field engineer, implying this dangerous lag-and-surge behavior was intentionally introduced into the vehicle's management software by the manufacturer to mitigate, the recall notice noted above, battery thermal risks at the expense of occupant driving safety. The manufacturer’s recall remedy has traded a fire risk for an active moving traffic hazard. " several forums and ai searches show this is a common problem the manufacturer has created to avoid a costly recall by addressing the real issue with the battery’s fire risk. Instead they have intentionally reduce the battery’s performance causing a safety issue with the vehicle’s acceleration and operation.

One day out of the blue, my Jeep Wrangler received a "service shifter" error code. The error code threw about 40 other codes at the same time. Loss of power steering, loss of abs, engine kept revving on its own, windshield wipers turned on. While in park it felt as if it was trying to shift itself into other gears. Loss of steering while driving as well as the engine revving up and down while on the interstate. Every warning light came on and stayed on. I can let it sit for awhile and it'll drive fine for a little while until it does it all again and again. I have not taken it to a dealership yet due to all the threads on being charged $2000 and it not get fixed.

While driving, my 2023 Jeep Wrangler 4xe suddenly loses drive power without warning. The car is a plug in hybrid vehicle. The vehicle routinely displays 'electric temporarily unavailable'. When it happens, I press the accelerator and the vehicle does not respond; there is a delay of several seconds with little or no power before the gas engine engages. This is a serious safety hazard — the loss of power is sudden and unpredictable, and the delay leaves me unable to accelerate when merging or pulling into traffic. The condition is reproducible and began after the 68c recall software update. The driver expects a continuous level of power by the car, not a sudden power loss. This is reported by countless other drivers on all social media platforms as a consequence of the 68c recall that affects 350,000 Jeep Wrangler 4xe and grand cherokee 4xe. I have taken the vehicle to the dealer multiple times; each visit results in 'no codes found' and 'operating as designed,' and it has not been repaired. Jeep does not respond to customer complaints or requests for clarification.

Vehicle dropped off at the mcgovern Chrysler Jeep dealership in newton, MA on March 31, complete transmission failure, vehicle has active recall 25v-741 and resolved recalls including 25v-766 (engine sand contamination affecting propulsion).

What component or system failed or malfunctioned, and is it available for inspection upon request? -after the 68c recall update for the hv battery failures, the vehicle has not been able to consistently maintain or provide power due to the limitation of the battery introduced as part of the recall. This is most noticeable driving in electric mode below 60% charge. The throttle behavior is inconsistent and unpredictable due to the recent updated how was your safety or the safety of others put at risk? -I was merging onto a controlled access highway and unable to accelerate after pulling into the travel lane from the merging lane due to the limitations of the battery power. The engine did not respond in time to provide power to the vehicle. The occurrence of the loss of power is unpredictable. Some times the electric battery and motor can provide the necessary power, and in others it does not respond to the throttle demand at the same state of charge with no indication of the issue. Has the problem been reproduced or confirmed by a dealer or independent service center? -it has not yet has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? -it has not were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? -no warning lamps were provided.

The issues lies in the hybrid systems electric only function. When climbing grades, the vehicle experiences severe power loss which can be felt by the driver and is displayed by the vehicle on the dashboard information cluster. Power output from the hybrid system drops to or below 50% output even when pressing the accelerator to maximum. This issue occurs almost every time climbing a steep grade regardless of exterior temps. After losing speed and power on a steep grade while working the accelerator to or near maximum application the engine is activated abruptly without warning and without the proper hybrid warm up sequence and causes startling shifting by the powertrain and jerks the vehicle. This behavior began after recall 68c was performed and hybrid battery replacement.

The vehicle is a 2018 Jeep Wrangler with a 3. 6l engine and approximately 124,000 miles. The engine has experienced a failure involving multiple components, including suspected head gasket failure, significant oil loss with no visible external leak, low oil pressure, and engine knocking. Diagnostic trouble codes p0365 and p06dd were present, indicating camshaft position sensor issues and oil pressure control failure. The vehicle is available for inspection upon request. This condition creates a safety risk due to the potential for sudden engine failure and loss of power while driving, which could occur without warning and increase the risk of an accident. The problem has been confirmed by an independent repair facility, which identified low oil levels, coolant loss, and symptoms consistent with internal engine damage. The vehicle has not been inspected by the manufacturer. Prior to the failure, warning signs included a low oil pressure condition and engine performance changes. These symptoms developed rapidly over a short period of time. The vehicle is currently not safe to operate due to the risk of further engine damage or sudden failure.

I am submitting this complaint regarding a new safety incident involving my 2024 Jeep Wrangler 4xe after completion of the repair associated with recall 68c. The recall 68c repair was completed on January 28, 2026. After that repair, the vehicle experienced new and serious operating failures. The vehicle repeatedly tripped my home charging circuit during charging attempts. In addition, the vehicle's electric mode malfunctioned despite the battery showing charge. The vehicle then experienced loss of propulsion and stalled while driving, creating a serious safety risk. Because of this incident, the vehicle was towed through Jeep roadside assistance and is now at schumacher Jeep in [xxx] for diagnosis. The vehicle is currently not safely operable. Recall 78c also remains open with no available remedy. This complaint is being submitted as a new safety incident following completion of the recall 68c repair, and it should be reviewed together with my prior odi complaints, including odi xxxand odi xxx. I can provide supporting documentation, including recall records, repair records, tow documentation, and dealer information. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

After a recent recall (68c) for my 4xe the driving characteristics of my vehicle have totally changed. Accelerationis delayed and jerky with the engine cutting in and out very unpredictavely now. Electric range has also gone down in a real world scenario. Jeep has not clarified or explained that the recall did to the driving dynamics of the vehicle after the recall.

Component/system failure: the hybrid/electric propulsion system intermittently loses power while driving. Electric output is progressively reduced to approximately 50%, then 25%, and then fully disabled, even when sufficient battery charge remains. The condition appears to involve the hybrid control/electric drive system. The vehicle is available for inspection upon request. What happened / safety risk: the loss of electric propulsion occurs unpredictably during normal operation, including both highway and city driving. The reduction in available power and sudden loss of electric functionality creates a potential safety concern, particularly when driving in traffic or at higher speeds, where reduced or inconsistent propulsion may impact the ability to maintain speed or respond to driving conditions. Additionally, the vehicle is subject to a high-voltage battery recall involving fire risk, which raises concern regarding safe operation and storage of the vehicle. Reproduction / dealer confirmation: the issue has been reproduced and confirmed by the dealership (johnson auto plaza, brighton, CO). The dealership also confirmed that the same issue was reproduced on another Jeep Wrangler 4xe vehicle on their lot. Inspection by manufacturer / others: the vehicle has been inspected by the dealership and escalated to Jeep engineering. The manufacturer has been unable to diagnose the issue due to the absence of diagnostic codes and has not identified a repair. Warning lamps / messages / symptoms: no consistent warning lamps or diagnostic codes are present when the failure occurs. The loss of electric functionality happens without a predictable pattern and without clear diagnostic indicators. Additional notes: the issue occurs unpredictably under all normal driving conditions, including: highway driving at speed city driving at low speed various battery charge levels (low and high) the dealership has suggested possible driver-related causes; unsupported by car behavior.

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Car began slipping not wanting to shift gears humming loudly and driving rough at 61k miles on a 2023. Being told it’s dclutch and possible transmission needed. No warning just out of nowhere.

The contact owns a 2015 Jeep Wrangler. The contact stated that while driving at 45 mph, the clutch started slipping, causing the vehicle to accelerate independently. The vehicle was driven to an independent mechanic to be diagnosed. The contact was informed that there was an oil leak from the oil filter housing, causing the clutch failure. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 83,000.

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In highway speeds the death wobble is uncontrollable. To the point my daughters in the back got scared and cried thinking we would crash. I take to Jeep and they told me nothing was wrong. They lied to me.

After 68c recall has been performed and "passed" the car will lose acceleration and power when trying to go up a hill. Will not accelerate when in electric mode.

The contact owns a 2017 Jeep Wrangler. The contact stated that while driving approximately 30-45 mph, the vehicle lost power. On another occasion, while driving at 20 mph, the vehicle lost motive power. While shifting into gear, the vehicle failed to respond as intended. The check engine warning light illuminated after the failure. The driver was able to pull over safely. The vehicle was running, and the heat was functioning. The vehicle was towed to a aaa service center, where the filter and oil were changed; however, the failure reoccurred. The vehicle was towed to aaa again, but no assistance was provided. The vehicle was taken to the local dealer, where it was diagnosed, and it was determined that the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 100,000.

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I am writing to report an additional safety?related incident involving my 2024 Jeep Wrangler rubicon 4xe. This vehicle previously experienced propulsion issues that I reported under NHTSA case number 11692887. On the morning of February 4, 2026, while driving to work on a busy interstate (approximately 12 miles from home), the vehicle again began exhibiting propulsion instability. The vehicle experienced repeated surging and thrusting movements that became progressively more severe during the drive. During these events, the check?engine light intermittently illuminated and then turned off. This incident occurred exactly seven days after my vehicle was evaluated by sam leman Dodge on January 27, 2026, for three open safety recalls. At that visit, I was provided paperwork indicating that the issues had been addressed. However, as of today, the official Jeep/mopar recall website still shows multiple serious and active safety recalls for my VIN, including recalls involving fire risk and sudden loss of motive power. After the February 4 incident, I contacted the dealership, and their service department advised me not to drive the vehicle and recommended that it be towed to the dealership for evaluation. I followed this guidance due to the severity of the propulsion behavior and the safety concerns involved. Given the recurrence of propulsion instability, the worsening severity of the surging behavior, the dealer’s recommendation not to drive the vehicle, and the presence of multiple unresolved safety recalls, I am requesting NHTSA’s assistance in ensuring that the manufacturer addresses these issues and restores the vehicle to a safe operating condition. Thank you for your attention to this matter. Recognize that this is the second time I have emailed the NHTSA regarding propulsion issues with this vehicle (earlier case number 11692887). Please help me build a relationship with Jeep to ensure this vehicle is restored to a safe condition.

My Jeep Wrangler 4xe now has controlled/limited electric propulsion while driving in electric only mode after 68c recall was performed. With no warning while driving in electric only mode, my vehicle will not accelerate without accelerator press almost to the floor to activate the internal gas engine. This behavior on a cold run starts out fine, but as the vehicle(electrical system) warms, the limitations come on strong can catch the driver completely off guard if needing to accelerate quickly to merge into traffic or enter freeway on ramps. This erratic behavior is both dangerous to the driver along with other drivers on the road. My dealer has driven the vehicle on a short(in town) test drive and concluded the vehicle drives as intended by the manufacture. No warning are lamps visible, and as outside temps rise, this issue seems to be more apparent. This electrical behavior started the day I received my vehicle from the dealer after 68c recall was performed. The software that is now installed on these 4xe vehicles seem to be limiting/cutting the electrical output of the onboard high voltage battery to limit or eliminate heat stress on the internal battery known to catch fire and burn under heavy load. This creates a safety hazard to owners who drive these vehicles that basically stall out(no acceleration/dead pedal) without warning given to the operator prior to the software limiting the battery output to the vehicle drive train at will. When this occurs the electrical boost gauge on the 4xe dash will not rise above 25% no matter how far down you push the accelerator pedal, where normally(when not limited by software) the gauge can reach 100% during the electrical acceleration process.

Am the original owner of this 2015 Jeep Wrangler, which I purchased new. The vehicle has been properly maintained according to the manufacturer's recommended maintenance schedule. I have records documenting routine maintenance, including regular oil changes. At approximately 75,000 miles, I began hearing a persistent ticking noise from the engine. Because I was concerned that the noise could indicate a mechanical problem, I scheduled an inspection with an authorized Jeep dealership. The dealership diagnosed the vehicle with a failed rocker arm that caused damage to the exhaust camshaft. The dealership advised that the intake camshaft remained in good condition, indicating that the failure was isolated to the exhaust valvetrain at the time of diagnosis. This type of internal engine failure at approximately 80,000 miles was unexpected for a properly maintained vehicle. My concern is that if this condition is not diagnosed promptly, continued operation could result in further engine damage, loss of engine performance, engine misfire, or potential engine failure while the vehicle is being driven, creating a potential safety hazard. While researching this issue after receiving the diagnosis, I found numerous reports from other owners of vehicles equipped with the 3. 6l pentastar engine describing similar rocker arm and camshaft failures across Jeep owner forums, reddit, facebook owner groups, and youtube. Although I understand there has not been a recall for this condition on my vehicle, I believe the number of similar owner reports suggests the issue may warrant further review. I am submitting this complaint so that NHTSA is aware of the issue and can evaluate whether similar failures are occurring with sufficient frequency to justify additional investigation.

My 2021 Jeep Wrangler rubicon (3. 6l etorque, automatic transmission) has experienced recurring drivetrain instability beginning at approximately 2,000 miles while under factory warranty. The vehicle intermittently exhibits a high-rpm flare during acceleration, where the engine speed increases without a commensurate increase in vehicle acceleration. The transmission then abruptly engages, causing sudden jerking. At low speeds (approximately 10–5 mph), the vehicle shudders and harshly downshifts, creating a sudden grabbing sensation. Engine rpms fluctuate during deceleration as if the transmission cannot smoothly match engine speed. Braking feels inconsistent, and at times it feels as though the vehicle is accelerating or resisting braking input before abruptly slowing. The vehicle has felt as though it would stall at low speeds and has stalled intermittently. Additionally, the forward collision warning / automatic emergency braking system has activated without an obstacle present. There have also been intermittent instances of loss of power steering assist. The engine has developed a ticking noise and a high-pitched ringing/whining sound from the engine area during operation. In January 2026, the transmission catastrophically failed and required replacement of the transmission, torque converter, cooler, and control module. The vehicle was out of service for over 24 days. Following installation of a mopar remanufactured transmission and torque converter, the same symptoms have recurred, including rpm flare, delayed shifting, shuddering, harsh downshifts, unstable deceleration, and abnormal engine noises. These conditions present a safety concern due to loss of expected acceleration, unpredictable torque engagement, unintended braking activation, intermittent power steering loss, stalling behavior, and drivetrain instability. The vehicle is currently under further diagnostic evaluation. I have multiple documents, but the file is too large to upload.