2021 Jeep Wrangler Powertrain & Transmission Problems

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

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.

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

I just had the 68C recall done to my Jeep Wrangler 4XE recently. Before the recall, it was running fine. But now, every time I go uphill in electric only mode, the car would suddenly lose power (eg. slowing down from 50 MPH to 20 MPH). Pressing the accelerator does nothing, until I fully depress it, at which point the gas engine would start and the car jerks forward. It's very dangerous with the sudden slow down and speed up for no reason.

I was driving on the freeway, 65mph, in Los Angeles and the '21 Jeep Wrangler 4xe started showing a bunch of error messages telling me to safely pull over, loss of propulsion, etc. I lost power and was unable to drive past 38mph. Upon getting to the end of the off-ramp and before coming to a full stop, the vehicle threw itself into parking gear. I shifted to Park, and it wouldn’t shift out of Park, while I was blocking traffic on the off-ramp, which could have been a dangerous incident. I required a tow truck. There was a Check Engine Light and a 12V battery light while I was bricked. The tow truck was unable to jump start it. The dealer provided a pre-scan report showing stored codes P0607 (ECU Internal Performance) and P1B13 (Park-By-Wire Unintended Out of Park). Refusal to Repair: The dealer just replaced the 12V battery and "cleared the codes" (per their invoice). There is a known TSB 08-054-22 (NHTSA ID 10248015) specifically relating to code P0607 software logic, but they refused to look into it further. I didn’t have confidence in their diagnosis, and when requesting them to do a safety test drive with me, they refused. When I pressed for safety verification, the Service Director told me to “leave the dealership and never come back.” I was genuinely concerned about the safety of this vehicle and their lack of investigative diagnosis, specifically their refusal to verify if the TSB was performed to ensure the Hybrid Control modules have up-to-date software. They refused to offer any help and just told me to “take the vehicle and leave.” I don’t believe it’s normal for a car to lose propulsion from a weak 12V battery while driving. There seems to be a more complicated communication issue (P0607) that is happening, and it very much concerns me as losing propulsion on the highway is very dangerous.

I purchased (traded into) a 2021 Jeep Wrangler on October 31, 2024. The vehicle already had an open safety recall (68C) at the time of purchase. Shortly after, the vehicle began experiencing severe and dangerous safety failures. While driving, the Jeep suddenly goes into “turtle mode,” loses power without warning, and drops to 7–12 mph in traffic. The engine light comes on and the vehicle becomes almost undrivable. This creates an extremely hazardous situation where I could be rear-ended or left stranded on the road. This is a serious safety risk to me and to other drivers. I contacted Jeep/Stellantis Recall Customer Care to report the issue. Only after calling did I receive an email telling me I must pay out of pocket for a rental vehicle, even though the vehicle is unsafe and the recall remedy is not available. I immediately responded saying I cannot pay upfront. Since November 25, Jeep/Stellantis has ignored my messages completely. The vehicle remains unsafe, undrivable, and under a recall with no available parts. Jeep has refused to provide a direct-billed rental or any safe alternative transportation. I have been left without a usable vehicle while the manufacturer fails to communicate or offer assistance. This is a major safety defect, and the lack of manufacturer response puts me in danger. If this vehicle loses power in traffic again, it could cause an accident. I am requesting NHTSA intervention because Jeep/Stellantis is not addressing this safety issue, not providing a remedy, and not honoring their recall responsibilities. Symptoms: •Sudden power loss •Turtle mode activation •Speed dropping to 7–12 mph unexpectedly •Engine warning light on •Vehicle unsafe to operate Manufacturer Failure: •Recall 68C remedy unavailable •Denied direct-billed rental •Required me to pay upfront for rental •No response to my communication since Nov 25 •Left me without transportation

Jeep continues to apply bandaids to the high voltage battery system. The latest recall, 68c, is another software fix that doesnt address the root cause, high voltage battery. after the recall, the car drives horrible when in electric mode - engine kicks on all the time, loss of power until you stomp on the accelerator (which then kicks on engine). NHTSA needs to hold Jeep Stellantis accountable for selling an inferior product and take care of the customers who have supported them for the past 5 years until they stopped selling them! there are 320,000 jeeps impacted, lets fix this!!! I will be scheduling service soon, but you cant expect customers to stop our lives to live at the service center. Jeep really needs to start offering a large scale buyback OR fix the issue which would be to replace the battery with new improved updated one that doesnt become a fire risk every year! Thats where the NHTSA should come in to play - which is "dedicated to saving lives, preventing injuries, and reducing economic costs associated with motor vehicle crashes. It achieves this by setting safety standards, investigating defects, issuing recalls"

My local dealer has all the documentation on this jeep. It has been into the dealership many times now the check engine light is on for another problem which I am taking it in again this weekend . When I ask the dealer, I’ve been seeing things on Facebook about these jeeps having issues they just filled me full of a bunch of Bull and says every vehicle has issues. I’ve ran the VIN number and found out that mine is one of them that just catches on fire plus sometimes shakes when it’s driving down the road but that’s been minor considering everything else. One time I was driving up the driveway and it felt like the transmission slipped or something. They said it was something in the four-wheel-drive that went out. This is a new vehicle. It has very low miles on it. I’ve had it going on maybe the fourth year now it’s only got 31,000 miles on it I don’t drive it very far. It’s been in the shop several times for recalls or things that’s happened to it. When I first got it, it left me stranded would not start. I’d only had it a few days. It has been a lemon from start to finish. I am terrified to drive it and I don’t have another vehicle. I paid $55,000 for this jeep just a few years ago. I don’t know what I’m supposed to do. I desperately need help if the manufacturer is refunding people’s monies I want to make sure that I get enough money to buy another vehicle because this one is only a few years old and it’s been in the shop numerous amount of times. The other day it shimmied a little bit on the highway and I thought it was the road and now I’m reading that there’s problems with that also, it’s clearly a lemon. But as I said, I’m scared to death to drive it now. The newest development as I’ve said is now the check engine light is on. It’s only been out of the shop for maybe three weeks since they fixed something in the four-wheel-drive which I’ve never even used. I love the looks of this Jeep, but it’s not dependable so I need help.

My vehicle is subject to an open safety recall (NHTSA Recall 25V-741) involving high-voltage battery separator damage that may cause a vehicle fire when parked or charging. The recall has been active on this vehicle for over four months. The manufacturer and dealers have confirmed the recall applies but have not provided a remedy timeline or parts availability. The vehicle is considered unsafe to park near structures or other vehicles and I have been advised to avoid recharging. No repair has been performed. The condition places occupants and others at risk of fire and prevents safe use of the vehicle. I am reporting this because the manufacturer has failed to remedy this safety recall in a timely manner.

2021 jeep wrangler 4xe , power loss twice after recall was completed in 2022. INCIDENT AFTER RECALL completed. 1st - power loss, turtle sign. got stuck in hope BC, Canada. ECU FLASH fixed it, chilliwack, BC. 57000 miles roughly. Hv battery voltage sensor ckt performance issue. 2nd time- 62000 miles roughly, ABRUPT POWER LOSS on a highway, driving in passing lane 75mph, engine check lights on, after few secs full power loss, all lights on. After 30 mins of park mode, all lights went away. Towed it to dealership. They ordered a part, and is still stuck at dealership, since 15 days. Used my judgement & managed to safely coast and avoided risk of any incident. Turtle sign, and i think and something with battery verbiage popped up. Couldn't take an image as was in reactive mode. Parked and turned off the engine, called tow truck. After coming back from home waiting on a tow truck, turned on the car. All lights gone. Dealership found DTC's , crown jeep dublin perimeter drive, but couldn't recreate as per my knowledge, at this time. I am hoping dealership might fix my car soon. I am reaching out to let you know the recall countermeasure didnt fix the issue. Please push jeep for a permanent hard countermeasure, not a band aid. It's not just a severe inconvenience, but major risk for accidents on road. Dealership told me other cars came in for similar issue, due to OTA update for 24my and 25my 4xe's, and it was not applied on my car 21MY. Thanks

Put a brand new battery in my vehicle - 3 days later driving on the highway had full loss of power - if said to service the charging system, and to put the car in park, then to press the brake and start button to start the vehicle. Went from 75MPH to 25MPH - rolled off the highway.

I was driving my 2021 Jeep wrangler and it started running poorly. I was near the dealership. I called them and told them I was headed to them asap. (I was within 3 mile range). The car died in the middle of an intersection. I could not put the car in neutral to move it out of the way of traffic. I got a tow truck to bring it to the dealership. Where they told me that the coolant tube fasteners for my vehicle were gone, and that the engine was blown, including the pump. Elbow screws were missing for the vehicle and coolant was everywhere in my vehicle. My car has 46,000 miles on it. It has had every single oil change ,reported recall done and service request to complete completed.. It has been taken very well care of and has only been to this one dealership.. according to the dealership, it is not covered under my powertrain warranty, and that I must pay for the engine and other parts myself. Upon looking into this, I looked into the NHTSA and also the FCA for recalls on a 2021. I found that that my 2021 would have been recalled for recall number ZD8. Recall code is exactly what is wrong with my 2021 vehicle. I don’t know why they didn’t did not add my VIN number to it, but I am requesting that it be investigated to help me get this covered under warranty. I have contacted Chrysler currently they’re telling me that the engine is not available until November 17 at the earliest so at this time I am in a rental car that I am paying for.. I do believe that my VIN number for my vehicle should have been added and that it should be investigated for other owners of Jeep Wrangler 2021 and 2022 vehicles that possibly were not listed with their VIN numbers. Please help expedite. chrysler case # 94425835. Dealer code 45091 and customer number 81103. Thank you

While pulling into parking lot jeep suddenly accelerated deployed brakes it would not stop. Hit pillar in front of store. Did considerable damage to build and vehicle.

Vehicle rear locker light flashing indicating the rear locker was turned on when, leaving a retail shop, and the rear locker engaged in 2WD on its own! No indication prior to this, it came out of the blue. Tried to disengage the rear locker via selector switch but unsuccessful. Any attempts to drive were met with severe jumping and jerking of the vehicle with loud metal banging noises. Tried both reverse and forward as well as putting it in 4WD and then back to 2WD to disengage the locker. Not successful. Vehicle towed to Jeep dealership. Luckily I was in a parking lot and not on the main road. If this happened on the main road at speed, I fear I may have lost control of the vehicle as it was jerking and jumping and the vehicle was uncontrollable which would have put other drivers at risk of collision and possible injury. Dealership has confirmed the issue, replaced the rear locker and sensors in the axle, and the symptoms persist for them too. They are currently looking into the electrical system and computer as the root cause. Chrysler is recommending the dealer replace the rear axle as the only means of fixing the issue. Apparently this is a growing issue that Chrysler has been aware of for several years. Vehicle is currently in the shop at the dealership for troubleshooting.

Timing chain tensioner gone bad

It started with the engine sounding louder then normal. Then a bad smell in the cab of the vehicle. Later found out it was a exhaust leak that was getting into the vehicle causing headaches and other symptoms of carbon monoxide. Also note the burn marks around the broken bracket that could cause a fire if not mechanically inclined to notice. Not check engine light for this. But when I spoke to the dealership it wasn't new to them. Apparently this has happened to alot of the ecodiesel jeep and gladiators. A common problem that should be resolved before and life threatening injuries result in loss of consciousness or fire.

Vehicle check engine light illuminated along with multiple other lights on the dashboard. It had a difficult time accelerating on its own, very sluggish. At the next light the gas pedal was just tapped and the vehicle began to over accelerate increasing to over 30 MPH in a turning lane while crossing an intersection. Avoided a car accident and pulled into the nearest parking lot. That was the second time that type of incident occurred. The first time, the vehicle was self accelerating during 5 o’clock traffic in Los Angeles. We had to constantly press on the brakes only to avoid accidents until we could exit the freeway.

Transmission refuses to shift. Or will loose power and Have to pull off or just stop on the highway to shut vehicle off and restart to fix the problem. I was on i85 and had to pull off twice and the shoulder is a dangerous area to be on that highway. Also torque converter ticks and I’ve noticed a lot of the 2.0 4 cylinders having the same issues.

Hybrid systems loss communication with transmission modules hybrid battery shakes the whole when idle

At 10,400 miles a safety recall was performed on clutch for manual transmission. The dealership replaced clutch bearing, clutch press kit, and other clutch components. After 800 miles were driven (11,200 total miles on vehicle) and after the recall service, the clutch went out again while driving. Dealership is telling me the slave cylinder went out and will need to be replaced.