RoadVitals

2021 Jeep Wrangler Fuel system Problems

Owner-reported complaints naming the fuel system system, filed with NHTSA

Data refreshed

Fuel system reportsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
143
Latest Nov 3, 2026
Share of all reportsThis category as a share of every owner report on file for this model year. One report can name more than one component, so the categories overlap.
15%
of 962 total
Crash or fire reportedReports in this category whose submitter recorded that a crash or a fire occurred. The reporter's own answer on the NHTSA form, not a verified finding.
6
Injuries or deaths reportedTotals the submitters entered on their own reports in this category. Not verified by NHTSA and not a casualty statistic.
0

What this page shows

Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks. Every record below is an owner-reported complaint about the 2021 Jeep Wrangler submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 143 reports on file name it.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Owner reports naming fuel system

The 25 most recent of 143, in the owner's own words

EngineFuel system
Filed Nov 3, 2026

Engine fuel pump Cavitates and dies while at Idle or under power on highway. Fuel leaks out of the fuel tank vent in the Right Aft Fender well over the exhaust pipe. This is an intermitting problem.

NHTSA ID
11775531
Incident
Oct 3, 2026
EngineFuel system
Filed Oct 24, 2026

When driving about 50 miles per hour on the highway, it felt like my engine suddenly gave out and my dash turned off. When it came back in, there were multiple indicator lights and a message that read "Pull over safely and shift to Park." I did just that, but after that I couldn't get the car to turn back on or shift out of park. I had to have to towed to the dealer and it has been there since 10/13.

NHTSA ID
11773408
Incident
Oct 13, 2026
EngineFuel systemPowertrain (other)
Filed Oct 15, 2026

I have owned this vehicle since August of 2021 and consider myself very familiar with the normal operation and performance of the vehicles propultion system. From August of 2021 through December of 2025: - I could operate the vehicle at highway speeds in full electric mode - I could reliably tell when the vehicle would transition to the internal combustion engine and how the vehicle would respond when it transitioned (a smooth transition) - I could have confidence in how the vehicle would accelerate when the gas pedal was pushed. I had the 68C recall performed on 12/23/25 and since the recall, the vehicle's propultion system has not been the same to the point where it is a safety concern. - I cannot operate the vehicle at highway speeds in full electric mode and in many cases cannot operate in electric at lower speeds. - When the vehicle transitions to internal combustion, the engine climbs to an unsafe RPM, then reduces RPM in stages until transitioning back to full electric. This process repeates iteslf over and over as if the vehicle is trying to find the right balance between electric and gas. These transitions cause unreliable fluctuations in speed and power and put unecessary strain on the engine. - There are times when I will go to accelerate and nothing will happen for a couple of seconds. This is particularly dangerous at intersections. - There are times when I will go to accelerate and the vehicle will start in electric for a second and then immediately jump to 4500 RPM on the internal combustion engine, jetting the vehicle forward in an unsafe manner. The dealership noted the behavior, but cannot identify any codes and the official message from Jepp is that this is "Normal Operation." I've driven this vehicle for over 5 years and over 60,000 miles. I can confirm that this is not normal, this is not how it always has been, and there has been a change made to the performance of the vehicle since the recall. I have videos of the behavior.

NHTSA ID
11771298
Incident
Dec 23, 2025
EngineFuel system
Filed Oct 14, 2026

My 2021 Jeep 4XE is not safe after the 68C battery recall, this recall has caused the combustion engine to start intermittently even though I am in hybrid or electric mode, when this happens, the jeep will not respond to the accelerator pedal for a few seconds while the computer figures out what to do, when pulling away from a stop sign or turning left in traffic this lag has made it very difficult to drive in traffic. I feel the 68C recall has made this vehicle unsafe to drive unless you know it's going to lag and make driving corrections because of it. At this point I will not let anyone but myself drive it for fear they will experience the lag and end up in an accident because of it. I have had it back to the dealer 2 times and they acknowledge my complaint but since it has no codes they can't or don't know h0w to fix it. They have contacted Stellantis and they advise the jeep is operating as designed. It didn't do this prior to the 68C recall. Not sure what to do at this point but I now have a vehicle that I bought because I liked the performance of the Hybrid system but now that performance is compromised to the point, I feel it's not safe, and Jeep cant seem to rectify the issue even though the dealer acknowledges its and issue

NHTSA ID
11771112
Incident
Jan 7, 2025
EngineFuel systemPowertrain (other)
Filed Oct 12, 2026

I purchased my 2021 used with 29k miles in April 2024. Since then I have had to deal with three recalls but one of particular concern- 68c, meant to reduce the incidence of fire caused by the battery cell separators. Since then I have experienced a very noticeable change in how the Jeep drives. There is a large gap in available power, the gas engine sometimes kicks in unexpectedly at high RPM, other times I press the accelerator to the floor with no response, and at times there is a severe lag between the time I need to accelerate and the time that power is available. Overall not only did the recall fundamentally change the vehicle I purchased it also introduced unsafe driving characteristics because it is less predictable in its response.

NHTSA ID
11770522
Incident
Dec 31, 1969
Fuel systemPowertrain (other)
Filed Oct 2, 2026

After application of the most recent battery recall/Software update, 68C, the vehicle operates differently than it previously did. In fact, it now nearly stalls while climbing a hill to my home when the battery charge indicated is less than about 35%. Vehicle speed drops from 25 to nearly 5mph, independent of accelerator pedal position, before the engine starts abruptly. Not only am I creating a traffic hazard for those behind me, but the cold gas engine engages at full load. Secondly, the overall response to accelerator input seems to be much slower, both in time and power, than before the software update. This causes issues when pulling out into traffic and is especially alarming when the Jeep won't respond as it did for the previous 50K miles.

NHTSA ID
11768452
Incident
Aug 1, 2026
Fuel system
Filed Sep 30, 2026

This vehicle has become unsafe to drive and no longer has the performance that it had when originally purchased since the 68C recall. In electric mode, I experience low power and the acceleration is almost non-existent. This has caused significant safety issues when merging onto highways and maintaining flow of traffic speeds on hills. In electric mode, after about 10-15 mins, it will also abruptly start the engine and spike at 4K RPM (even when the vehicle is not under strain or accelerating), then drop to 1K RPM, then spike back up to 4K RPM, then go back down, then up, over and over, causing concern over engine wear and gas mileage impacts. It will not go back into electric mode when this happens until the vehicle is turned off and back on again. We have reported this repeatedly to the dealership, and they have stated that since there are no codes, their hands “are tied”, and there is nothing they can do. I do not want a buy-out or money settlement; I simply want this vehicle to operate the way it did prior to the 68C update.

NHTSA ID
11767963
Incident
Jun 1, 2026
Fuel system
Filed Sep 29, 2026

After 68C my Jeep doesn't respond the way it used to, theres reduced power when staying with the flow of traffic or climbing hills. It seems to be unsafe bc I can't accelerate like I used to, I think Jeep is limiting the power

NHTSA ID
11767762
Incident
Aug 12, 2026
BrakesElectricalFuel system
Filed Sep 28, 2026

Manufacturer corporate and its dealer network are failing to provide a safe, timely remedy for a vehicle subject to high-voltage battery fire recalls (Recall 68C / NHTSA Campaign 25V-741) and a power steering fire recall (Recall 21D / NHTSA Campaign 21V-363). The vehicle has an active check engine light, a disabled hybrid propulsion system, and has now suffered a catastrophic electronic brake booster failure on a college campus, rendering the brake pedal rock-hard like compressed air and leaving the vehicle unable to stop normally. This is a direct, recurring safety failure of Diagnostic Trouble Code DTC C0580-00 (Brake Booster Motor Circuit Low), which was officially documented by a franchise dealer in June 2026. The vehicle also has an extensive history of severe manufacturing defects, including an extraordinary 72-day out-of-service period at a dealership in Miami, FL for a disintegrated rear axle bearing that destroyed the differential housing, alongside advanced structural body rust on hinges found to be unsafe. The manufacturer was formally notified of this active safety emergency and loss of vehicle utility on Sunday, September 27, via email and corporate phone logs, but failed to respond or secure the vehicle. We are formally demanding an expedited manufacturer repurchase/buyout due to total loss of vehicle utility, structural housing conflicts under 'park outside' directives, and severe physical safety liability.

NHTSA ID
11767597
Incident
Sep 27, 2026
Fuel system
Filed Sep 27, 2026

After completing the Jeep Wrangler 4XE '68C' recall, my Wrangler started having erratic RPM / engine surges. Moreover, the powertrain system will jump between electric and hybrid gas (ICE) modes while driving at highway speeds when in 'Electric' mode. It actually does this in Hybrid mode but Electric mode is far worse. The Jeep did not do this before completing the 68C recall. The safety issue is erratic RPM and engine surges. The battery will have plenty of charge and should not need to jump back to hybrid mode. It did not do this before the 68C recall update. My car has not lost 'full' power but I've heard of others that have lost full power or have had major dead spots during acceleration. I have noticed reduced power and loss of acceleration (also a safety issue), as well. My theory is the battery and maybe the hybrid system is faulty. The battery used in the 4XE has been confirmed to have fire risk issues and the 68C seems to have changed the driving function by software update to keep it from over heating but they have created new safety issues with this patch and did not actually correct the original problem (only hide it). Not to mention, the Jeep does not function as originally sold from a powertrain standpoint. My EV battery was replaced after 68C recall but my 'new' battery has the same chemistry and cells so it still has the same fire risk as before but now with the powertrain problem meant to keep to battery cool to hide the fact that nothing was actually corrected (beyond creating new safety issues). If Jeep says that this is functioning as intended that is not correct. This car did not do this before the 68C updates and they have created new problems. Not to mention, possible engine problems resulting with this behavior.

NHTSA ID
11767266
Incident
Sep 26, 2026
Driver assistanceFuel systemPowertrain (other)
Filed Sep 23, 2026

My vehicle is currently in the shop getting the High voltage battery replaced for the second time due to a code showing battery voltage variation as well as getting the latest 21D recall completed. The Jeep currently has about 90,000 miles and has received all other recalls. The jeep no longer functions or performs like it did when I took ownership in February of 2022. It routinely loses power when trying to accelerate onto Highways or into traffic lanes or up hills. You can push the pedal down and there is a noticeable delay of several seconds before the vehicle starts to accelerate. The car no longer will stay in selected "Electric mode" and will instead kick the engine on at random times or take the vehicle out of "electric" and into "Hybrid". When at slow speeds (under 15MPH) in traffic the jeep lurches and slows, unable to maintain a constant speed. Also I have no way of proving that the overall power has been reduced through programming but the acceleration and advertised 375HP/470lb-ft does not seem to have the same feeling that it once did when first purchasing this vehicle. I believe there is a dangerous ongoing safety issue possibly with the programming, as well as the HV batteries. There were no warning lights coming on during the course of the last several months until I had a CEL for battery voltage variation and then it was taken to the dealership on the same day. There has been no communication with Jeep/Stellantis other than them issuing an unlimited mileage warranty on the HV battery. They seem to be replacing it with the same design, and therefore not addressing the issue only putting a band aid on the problem.

NHTSA ID
11766301
Incident
Aug 28, 2026
Fuel system
Filed Sep 22, 2026

Since recall 68C was completed in February, the performance of the vehicle in Electric mode has degraded significantly. Prior to 68C, the gas engine was nearly impossible to engage in electric mode which was a good thing and clearly intended for extreme circumstances where unusually rapid acceleration was required. Also prior to 68C the electric acceleration was dependable and predictable both around town and at highway speeds. I live atop a 1.5 mile hill and could travel bottom to top without the engine engaging. Since 68C, I have consistently observed multiple changes in performance in electric mode: 1) the engine will engage much sooner and more frequently upon acceleration in any conditions. Wherever it happens, this is an unpredictable behavior that puts instant load on a cold, unlubricated engine. 2) At and approaching highway speeds in electric mode, the vehicle will begin to lose acceleration, hesitate and the gas engine will engage - again putting load on a cold, unlubricated engine. This can happen after several miles or after just a few miles. When the engine engages, it does not engage smoothly - the engine will rev high then drop down, then rev high then disengage - all inconsistently and all unexpectedly. While this is happening, the vehicle's acceleration or ability to maintain speed is inconsistent and constant manipulation of the throttle is necessary to ensure I'm not losing too much speed relative to the traffic around me. I don't know what changes were made as part of the 68C recall remedy but it has dramatically changed how electric mode is managed, has significantly decreased vehicle performance in electric mode and puts my and my passengers' safety at risk when I'm driving. The problem has not been reproduced by a dealer and I've confirmed that the latest software is installed. The component has not been inspected. The issues described above only presented after the 68C recall work was performed and occur without warning.

NHTSA ID
11766181
Incident
Sep 18, 2026
Fuel system
Filed Sep 21, 2026

Since the 68c recall my vehicle has not been performing as it should. It is in the shop for the 110th day since i had the recall installed.

NHTSA ID
11765835
Incident
Jan 8, 2026
Fuel system
Filed Sep 20, 2026

I had a 68c recall completed by Jeep and immediately after the recall, I noticed a reduction in power when accelerating, which causes me issues when trying to merge on the freeway and stay with the flow of traffic. This has been an ongoing daily issue. Also, the gas engine kicks on when it should not and loads immediately causing an erratic shifting of the gas engine, which causes the vehicle to lose power when it is needed the most. The recall was designed to supposedly protect the electric battery, but the software update that Jeep implemented has drastically changed the functionality and response timeframe at which the vehicle can respond when accelerating. I have tried to have Jeep address the issue, but they indicated the Jeep is operating as intended. It never operated like this until after this recall update and many other Jeep 4xe owners are reporting similar issues with propulsion and the gas engine loading erratically. Thank you for looking into this safety concern.

NHTSA ID
11765678
Incident
Dec 15, 2025
Fuel system
Filed Sep 20, 2026

2021 Jeep Wrangler 4xe Sahara, VIN [XXX]. 1. The exact malfunctioning component is UNKNOWN; I suspect the hybrid propulsion system. The vehicle is available for inspection. After recall 68C was completed, accelerator response, electric-power availability, and combined gasoline/electric performance changed substantially. The Jeep hesitates when I press the accelerator, the gasoline engine starts at unexpected times, and full electric-mode operation becomes restricted. Combined acceleration is noticeably weaker than before the recall. My complaint concerns restricted propulsion power, not reduced driving range. Horsepower loss has not been independently measured. Whether battery overheating or thermal-protection controls cause these restrictions is UNKNOWN. 2. I regularly pull out into traffic expecting the acceleration the vehicle previously provided, but the Jeep hesitates or fails to gain speed quickly enough. The approaching driver behind me then has to slow down. This recurring delayed response and reduced acceleration make safe gaps harder to judge and create a risk of a rear-end collision. 3. No dealer or independent service center has reproduced or confirmed these post-recall problems. 4. Recall 68C was completed, but these subsequent drivability problems have not been inspected by the manufacturer, police, insurance representatives, or others. 5. I first noticed these symptoms on XXX, at 62,000 miles, after recall 68C. They became more pronounced during summer 2026 as warmer weather set in. No warning lamps or messages accompanied these problems. I suspect a connection to the recall work based on the timing, but the exact cause is UNKNOWN. I request that NHTSA investigate whether the 68C remedy causes or leaves unresolved restricted propulsion power and delayed accelerator response. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID
11765628
Incident
Jan 22, 2026
Fuel system
Filed Sep 19, 2026

When driving my Jeep 4xe hybrid powertrain in "electric" mode, I noticed loss of power at highway speeds, and other times at lower speeds. Pushing on gas pedal doesn't translate to acceleration. Engine kicks on but doesn't have a gear to find. This happens at various speeds, going 25mph up a hill or 55mph on a highway either flat or up a hill.

NHTSA ID
11765540
Incident
Sep 1, 2026
Fuel system
Filed Sep 19, 2026

This vehicle had a 68c recall (software) that has resulted in a significant change in the vehicle performance that resulted in unexpected power loss during its electric vehicle propulsion system that has nearly resulted in accidents on the road and on the freeway. This never happened before and it happens often now. The Jeep dealership claims there are no known error malfunction codes however there has been a material change in the operating environment and is very unsafe.

NHTSA ID
11765463
Incident
Sep 1, 2026
Fuel system
Filed Sep 18, 2026

Following the recent Recall 68C service administered by Jeep, my vehicle has exhibited several severe performance issues that pose direct mechanical and safety risks. 1. Erratic Gas Engine Engagement & Mechanical Strain Previously, under normal operation, if the vehicle required the gasoline engine while in electric mode, the engine would start at a standard idle (around 1,500 RPM). It would run briefly to lubricate moving parts before contributing to power delivery. Currently, the system behaves erratically. When electric operation exceeds 25% power under load, the gas engine frequently kicks on with absolutely no warm-up period. It immediately jumps to the 3,000 to 3,500 RPM range, forcing high-RPM operation on dry, unlubricated moving parts. 2. Severe Acceleration Lag (Critical Safety Hazard) The most alarming issue is a frequent 5-to-10-second lag during which the vehicle refuses to accelerate, and the electric power meter will not exceed 25%. This lag occurs during critical driving maneuvers, including: accelerating from stoplights or stop signs, changing lanes, and merging into active traffic. For example, while driving in electric mode in a 40 mph zone, the vehicle will begin accelerating normally under mild throttle. However, once the power delivery meter reaches 25%, the vehicle barely increases speed. Even with increased throttle pressure, there is a 2-to-5-second pause before the gas engine abruptly kicks on to resume normal acceleration. Conclusion: This unpredictable delay in throttle response is a severe safety hazard for myself, my passengers, and the general public. While I do not know the exact software or mechanical modifications included in the latest recall "fix," it has undeniably compromised the vehicle's drivability and safety. These performance defects need to be addressed and corrected immediately.

NHTSA ID
11765329
Incident
Sep 18, 2026
Fuel system
Filed Sep 18, 2026

Jeep did a recall that was called 68C and ever since that update, the jeep has not been the same. The jeep is a hybrid (4XE) model that has an electric mode that has become virtually useless since the recall. I have experienced loss of power almost every time i drive the vehicle. The engine starts and loads almost immediately at random times which i can only imagine hurts the engine without any sort of warm up time. I was waiting for jeep to offer another recall to fix the problems, but i have reached my limit on waiting for them to act. I just want my jeep to act and drive the way it drove before the failed 68C recall. Hopefully this will be the start.

NHTSA ID
11765229
Incident
Sep 1, 2026
Fuel system
Filed Sep 18, 2026

Since the 68c recall the performance of the vehicle when merging into traffic, in extended periods of time in electric or going up hill while maintaining speed in electric will slow the vehicle down to have no power to maintain the speed. This causes a safety issue with the vehicle and to other motorists around the vehicle. After having to press harder on the accelerator to get back up to speed the vehicle take many seconds before turning the gas motor on to get it to this speed. Again making this a safety issue with the vehicle. There needs to be investigation as the vehicle no longer performs the same as when purchased and causes a safety issue to the driver and other motorists.

NHTSA ID
11765207
Incident
Sep 18, 2026
Fuel system
Filed Sep 18, 2026

Since the 68C Jeep Wrangler recall was applied to my vehicle this past July, it has been exhibiting erratic behavior during acceleration. At varying times, when the accelerator is pressed from a stop, the vehicle will begin accelerating at normal rate, but then suddenly the power will drop off, resulting in the acceleration rate being dropped to where the car is barely accelerating. For instance, I was making a left hand turn from a stop, and when I accelerated onto the road, my speed quickly rose to 20 mph, but then the vehicle stopped accelerating, and remained at 20 mph. At the time, the vehicle was operating on battery power only. I immediately began increasing my throttle input, but the car failed to increase acceleration. Only once I had the pedal to the floor for a few seconds did the internal combustion engine activate, allowing the car to begin accelerating again, albeit at a slow rate that was not commensurate with the throttle position. This event has almost resulted in other vehicles colliding with my car when I was attempting to enter a busy road. This has occurred on a number of occasions, and the fact that this happens randomly presents an extremely dangerous situation that is not predictable. Other people who own the same Jeep Wrangler 4xe platform as me have also reported this occurring to their vehicles. Jeep, however, has not responded to this alarming problem, and simply has been telling customers who call Jeep customer service or take their vehicles to a dealer that there is nothing wrong, and the vehicles are operating normally. This is not acceptable, and with tens of thousands of these vehicles on the road, presents a significant danger to the owners and public at large. For the record, there were no warning lamps, messages, or any other symptoms prior to each incident for me. It also has occurred no matter the current capacity of the battery.

NHTSA ID
11765186
Incident
Aug 11, 2026
Fuel system
Filed Sep 18, 2026

Following the completion of the 68C recall, My Jeep does not have the responsiveness and speed that it did before. Even with lots of battery left, the engine will kick on resulting in a loss of power and then difficulty getting it back up to speed. There’s also hesitations when going to make a turn or accelerating through an intersection after slowing down. This vehicle is not like it was before that recall work was done. I view this is a huge safety factor if I’m not able to maintain my vehicle speed or accelerate when I need to.

NHTSA ID
11765158
Incident
May 1, 2026
Fuel system
Filed Sep 17, 2026

Ever since the 68C recall, my jeep constantly changes back and forth from electric to gas and causes an unsafe driving condition. Some of the shifts are rough, and the vehicle has stalled out as well. The acceleration and performance has also gotten worse. The vehicle feels like it is holding back / restricted. I can floor the gas and the jeep barely moves and then all of a sudden it kicks in and has caused scary and unsafe bursts of speed. I have brought this numerous times to the dealer for performance issues and they were able to replicate the issue. I am on my third hybrid battery and only have 34k miles on the vehicle. I have been stranded multiple times and have had to get towed. This vehicle is unsafe and I say a prayer every time I drive it.

NHTSA ID
11765126
Incident
Feb 1, 2026
Fuel system
Filed Sep 17, 2026

After the latest 68C recall, something has been altered in the vehicle that has changed its operability. It has lost total available power when in electric mode. The system now doesn't respond as well as it used to. This has caused a loss of acceleration and often time transitions to using the gas engine poorly when trying to get up to speed. It causes issues with climbing hills and when pulling out in to traffic. It feels as though it has been current limited to protect the faulty battery instead of replacing the battery with a better design. The fault with the battery is also causing early degradation. The issue that lead to the B9A, 95B and 68C recalls still resides in the battery. It seems as though Jeep has attempted to compensate for a poor battery design by altering the performance capabilities of the vehicle.

NHTSA ID
11765068
Incident
Jun 24, 2026
Driver assistanceEngineFuel system
Filed Sep 14, 2026

After the safety recall 68C, the vehicle no longer operates as designed. In electric only mode, the gas engine engages, which is bad for the engine. This fails to give the engine time to prepare for short sudden use. When driving, the high voltage battery will lag or not produce power as it did prior. This can cause an accident (which it almost did already for myself). The acceleration lags before engaging. This vehicle performed properly prior to this software (1/1/2026) update. I don't trust or feel safe in my vehicle at this juncture. I seek the manufacturer to correct this for the safety of those who drive these vehicles.

NHTSA ID
11763990
Incident
Jan 1, 2026

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