What 364 owners told NHTSA about the 2022 Hyundai Tucson Fuel Cell

My 2022 Hyundai Tucson Experience, a sudden transmission failure at approximately 92,520 miles. The vehicle develop shifting issues and abnormal noises before losing propulsión. While driving. Hyundai diagnosed and internal Transmission failure and approved transmission replacement. I’m concerned about the sudden loss of proportion and the safety risk this creates. Hyundai proposed repair is to replace the transmission with a rebuild remanufacture transmission rather than a new transmission. I am concerned about the reliability of the repair following a complete transmission failure.

NHTSA ODI 11743833

I am submitting this complaint regarding my 2022 Hyundai Tucson equipped with the 2.5L engine. The vehicle has experienced multiple incidents of severe engine misfiring while driving. During these events, the engine begins to shake violently, the entire vehicle vibrates, and engine power is significantly reduced. The vehicle becomes unable to accelerate normally, creating a serious safety hazard, especially when driving on highways or in traffic. The malfunction has occurred several times. Diagnostic trouble codes P0302 and P0303 have been recorded, indicating cylinder misfires. In some cases, turning the engine off and restarting it temporarily restores normal operation. On other occasions, adding fuel system cleaner appeared to temporarily improve the condition. However, the problem eventually returns. Because the condition is intermittent, the Hyundai dealership has been unable to reproduce the failure during inspection and therefore has not performed a repair under warranty. Despite multiple visits, the root cause remains unidentified. I am concerned that the sudden loss of power and severe engine vibration could result in an accident if the vehicle is unable to maintain speed or accelerate while traveling at highway speeds. This issue has significantly affected the safe operation of the vehicle. I request that this matter be investigated, as it appears to be a recurring safety-related defect.

NHTSA ODI 11742609

Multiple DTC codes on car at 25,120 miles,32,344, 34,324, 47,484, 51,853, 53,521, Consistent Fuel Injector failing under warranty, prior to 60,000 miles and not replaced correctly, as I have had to see dealership 4 times for ineffective fuel injector replacement and consistent problem. First DTC code reading @ 25,120 miles as stated on DTC coding Reports through Hyundai/Bluelink app. SEVERE Fuel leak into interior cabin and Fuel failure due to Powertrain/Injector Issues from 25,120 miles, and many more mileage as seen above. AUTO start does not work, Catalytic Converter is in need of replacement as codes read DTC code past readings and Engine Failure: P04567A, P030300, P022200,P012300,P210013,P042033,P042033 With FUEL INJECTOR/Powertrain Error. Caused car to engine fail in middle of driving!! *SAFETY CONCERN. I Have started multiple cases with Hyundai Motor America, and they had done nothing to report the problem or keep car for further testing and safety priority. Car is brand new, has about 66,800 miles on it now, had to replace all FUEL INJECTORS, FUEL RAIL, and now needing to replace Catalytic Converter due to Hyundai not covering issue that was consistent with Fuel Injector and initial GAS leak into Cabin. I had to visit the doctor many times due to GAS FUMES. 2025-2026-DTC codes stated under individual mechanic, and within my Hyundai Blue Link app as reading multiple DTC codes that Hyundai Refused to cover or fix initially. (Wrights Car Care, Atlanta, GA) stated that car is not safe to drive and is FIRE HAZARD (Technical Bulletin Alert) for Catalytic Converter is now pending and previously read as powertrain issue.

NHTSA ODI 11739618

The rocker arm of the engine has failed, causing a repair for a full engine replacement. The car has always undergone maintenance timely, and upon inspection by the dealership technician, the report state the vehicle was up to adequate level. There were no symptoms before the issue occurred, only the sudden catastrophic engine failure.

NHTSA ODI 11737252

Check engine light appeared, Car began shaking and struggling to accelerate. Independent mechanic and OReileys test stated cylinder 3 misfirw. Dealership stated GDI fuel injectors were leaking and is a known issue in several 2022 Hyundai Tuscon and needed to be replaced.

NHTSA ODI 11735939

1st Incident: Merging on to the freeway car started to stall but was able to safely make it off the freeway at next exit. Less than 2 miles was unable to accelerate to properly merge on freeway. A slow merge & slow driving on to a freeway is extremely dangerous. 2nd Incident: 6 months later, Nov. 2023. Driving about 65-70 MPH on the freeway with my son, the car started to stall again. I was able to safely move from the 2nd lane, to the shoulder. Waited over 2 hours in the dark for AAA to safely move us. 1st time documented issues with Hyundai dealership. Fuel injector was main issue and was replaced. No check eng light. 3rd Incident: May 2024 was driving about 75MPH in the fast lane when the car stalled. I was unable to move fully out of the lane as the car just died. I was half in the shoulder and the fast lane. I was crying with fear while I had to wait for CHP to move me. Multiple times feared other cars would hit me at 80MPH+ while I waited 30mins+ for CHP to stop traffic and move me to the shoulder. Took the car to the dealership for the second time to be "fixed" for the same issue as Nov. 2023. Fuel injector, and catalytic converter were "replaced". This now being the second time for the fuel injector issue. No check eng light. 4th Incident: April 2026 driving on a school night home from dinner with my son at about 9:45pm. It was raining and was traveling at about 55MPH on the highway. Car started to stall/ shut down again. Was able to go about15MPH to a safe spot and waited for assistance late at night. This happened on a highway where people tend to drive recklessly and try to pass other vehicles which causes a lot of head on collisions, [XXX] . Vehicle was towed to Hyundai dealership for the 3rd time & 3rd time documented for the fuel injector and 2nd for the catalytic converter. The vehicle's main purpose is to safely transport and I've had nothing but nightmares and put in extremely dangerous situations with my son. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11732532

While driving, I accelerated to merge onto the highway. The check engine light flashed a few times and the engine started wobbling like it was misfiring. I have also been having a parasitic drain on my auxiliary batter that makes the car not open to my key fob that I know works. The dealership told me it was bad fuel, but they “tested the fuel” with no diagnostic report/proof/records, saying that the fuel was bad and had a high concentration of 5% alcohol. They re-did the test and took pictures which shows the fuel is within tolerance but no diagnostic report and are refusing to complete a warranty checkup on my engine/electrical system. Also, the misfires with acceleration due to merging has happened 3 times. From the start back in July 2025 till now.

NHTSA ODI 11727825

The contact owns a 2022 Hyundai Tucson. The contact stated that while stopped, the vehicle hesitated to respond, with the check engine warning light illuminated. The contact stated that while the vehicle was parked, it was shaking unexpectedly with a misfire coming from the engine, and the check engine warning light illuminated. The vehicle was taken to the dealer, where it was diagnosed and determined that the fuel injector had failed and needed to be replaced. The vehicle was repaired. The contact later stated that while driving at an undisclosed speed, the vehicle lost motive power, with the check engine warning light illuminated. The vehicle was taken back to the dealer, where it was diagnosed and determined that the cylinders had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 69,000.

NHTSA ODI 11723900

Bought the 2022 Hyundai Tucson. It was driving perfect no issues then I hit 52,000 miles and the check engine light illuminated. The vehicle started sputtering and idling hard like it wasn’t getting fuel when the gas was pressed. I was on the interstate and the vehicle wouldn’t go over 35mph. Now the check engine light illuminates off and on when it feels like it.

NHTSA ODI 11723446

This vehicle has a considerate amount of oil dilution problems. I have had this vehicle taken in for service several times due to gasoline mixed into the engine oil. Again on March 6 2026 for the 4th time now the vehicle has a check engine light extreme hesitation with an almost stopping jerking motion due to dilution problems. Multiple dealerships claim there is nothing wrong with the car.. there is a distinct gasoline smell in the engine oil. The vehicle at times is almost unsafe to drive due to the hesitation and halting it does on its own. Every time a dealership is contacted my problem is dismissed. There is a burning smell due to the oil gas dilution issue. The car reaches higher temperatures than it should. And now the Hyundai dealership is making me wait almost a month again to have the problem looked at again which then puts me as the driver in an unsafe situation to drive a vehicle with such hesitation and fire risk. If they dismiss this oil and gas mix again and do not repair the car it could seize my engine or maybe possibly even cause fire damage.

NHTSA ODI 11722593

I am dealing with this issue where I am getting fuel injector issue and getting cylinder 3 misfire and air fuel imbalance code. It comes and goes. I spent 1500 bucks flushing fuel system and replacing spark plugs and coil. But the issue is still there! i changed the battery and got it to dealership they said they could find the issue. I was on freeway going southbound near exit 34 when the car starts shaking and I lost acceleration

NHTSA ODI 11720884

I have had 2 failures of the EGR valve. The first was covered under warranty. Hyundai is refusing to cover the second repair even though I think it should be covered under the 80,000 mile federal emissions warranty. The vehicle currently has 73,000 miles.

NHTSA ODI 11719176

The contact owns a 2022 Hyundai Tucson. The contact stated that while driving at an undisclosed speed, there was a misfire in the engine, and the check engine warning light illuminated. The vehicle was taken to the dealer, where it was diagnosed with engine cylinder failures. The contact was informed that the cylinders needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 55,000.

NHTSA ODI 11717859

The contact owned a 2022 Hyundai Tucson. The contact stated that while the vehicle was parked, the contact's neighbor knocked on the contact's residential door and informed the contact that the contact's vehicle was on fire. The contact stated that when she went outside, the contact noticed that the entire front of the vehicle was on fire. The fire department was called, and the fire department extinguished the fire. A fire report was filed. The contact stated that the vehicle was burned all the way to the rear seat of the vehicle. The fire burned another vehicle that was parked in the contractor's yard. In addition, the contact stated that the fire burned a good portion of the contact's residential yard. The vehicle was towed to a local tow yard. The vehicle was condemned a total loss by the insurance company. The fire inspector informed the contact that the fire started in the engine near the battery. The manufacturer was not made aware of the failure. The failure mileage was approximately 76,500.

NHTSA ODI 11707652

While operating the vehicle, the engine shut down. Complete loss of power. Engine would restart, stall and then not restart. Vehicle immobile. Vehicle towed to dealership since could not be driven. Strong smell of gasoline.

NHTSA ODI 11705875

The contact's wife owns a 2022 Hyundai Tucson. The contact stated that his wife reported that the vehicle shuddered significantly and failed to exceed 30 MPH while driving. The check engine warning light was illuminated. The vehicle was taken to the dealer, where it was diagnosed that the fuel injectors were leaking, and the dealer determined that the fuel injectors needed to be replaced. The dealer informed the contact that the manufacturer had redesigned the fuel injectors due to the known failure. The dealer informed the contact that the repair could not be covered under the extended warranty because the vehicle had exceeded the required mileage. The contact was informed that parts needed to be ordered to repair the vehicle. The vehicle had not yet been repaired. The contact related the failure to TSB Number: 22-FL-002H. The manufacturer was notified of the failure, and a case was filed; however, no assistance had been provided. The failure mileage was approximately 65,000.

NHTSA ODI 11699255

2022 Tucson (NX4, Alabama built) 2.5L Engine experienced a catastrophic failure leading to Hyundai dealer diagnosis that "Cylinder #3 is not contributing properly," which requires a full engine replacement. The vehicle is currently located at home and is available for inspection upon request. The engine scuffing has resulted in a severe loss of power contribution from Cylinder #3, leading to potential for sudden engine stall or complete loss of motive power while driving. If the engine seizes or stalls at highway speeds or during a critical maneuver (e.g., merging onto a freeway or turning across traffic), it creates an unreasonable risk of a rear-end collision or a catastrophic accident, endangering both the driver and others on the road. Furthermore, the internal mechanical failure creates a significant FIRE RISK due to potential oil leakage onto hot exhaust components. The problem has been confirmed by Hyundai Service Center in El Paso, Texas and three independent service centers in Arizona and Texas. All four assessments concluded that the vehicle requires a full engine replacement due to severe internal damage. Inspected by Hyundai Service Center in El Paso, TX. Despite confirming failure, Hyundai refuses to provide critical diagnostic data (Power Balance Test, Endoscopic Inspection, DTCs) and the determined root cause. This refusal hinders warranty transparency. The Check Engine Light (CEL) did not illuminate. Symptoms appeared late September 2025 at approximately 88,000 miles (audible engine noise/scuffing, rough idle, significant power loss). This failure at non-typical mileage demonstrates a severe internal defect and a safety system malfunction (failure of the ECU/CEL to adequately warn the driver). Note: Dashcam video documentation of the engine failure symptoms (audible noise and power loss) is available and can be presented to investigators upon request.

NHTSA ODI 11699028

I am submitting this complaint regarding an ongoing and dangerous issue with my 2022 Hyundai Tucson involving repeated fuel injector failures that have caused the vehicle to stall and lose power while driving, without any prior warning indicators. The first incident occurred in October 2023, at approximately 16,000 miles, when the car suddenly died while I was driving. There were no warning lights or signs of a problem before the stall occurred. The vehicle had to be towed to the dealership, where they replaced two fuel injectors. Just two weeks later, the same issue happened again—the car died while driving and was towed back to the dealership. The remaining injectors were then replaced. Unfortunately, this problem has continued. In November 2024, at around 26,000 miles, the vehicle again stalled while driving, with no warning, due to another fuel injector failure ( more failed injectors). Most recently, on October 18, 2025, with 31,000 miles on the odometer, my Tucson lost power and died while I was merging onto an interstate—once again with no warning or alert of any kind. I am still waiting for confirmation of how many injectors have failed this time. This is an extremely serious safety hazard. Losing engine power unexpectedly, especially while merging into highway traffic, puts both the driver and others on the road at significant risk of a collision or serious injury. Despite multiple occurrences, Hyundai has not identified the root cause of the injector failures and continues only to replace the faulty parts, which clearly does not resolve the underlying issue. It is unacceptable that a relatively new vehicle would experience repeated fuel system failures of this nature, and it is clear that there is a systemic defect affecting safety and reliability. I urge the NHTSA to investigate this issue to determine whether other Hyundai Tucson owners are experiencing similar failures and whether a recall or safety action is warranted.

NHTSA ODI 11696131

On August 14, 2025, at approximately 12:40 AM, my 2022 Hyundai Tucson Limited suddenly stalled while driving and became completely non-functional. The vehicle had about 25,000 miles at the time. This left me stranded on the highway in the middle of the night, creating a serious safety risk for myself and other motorists. The vehicle was towed to a Hyundai dealership. The dealer claimed the issue was caused by “carbon buildup” and stated that the problem would only be considered “repaired” if I paid for a fuel injection cleaning and fuel induction decarb service (about $500). These services are not listed in the Hyundai factory maintenance schedule, and no diagnostic evidence (photos, test results, or measurements) was provided to support the claim. Because the stall made the vehicle inoperable, I believe this should have been handled under warranty. Instead, I was pressured to pay for optional services in order to have the safety issue resolved. Safety Risk: The vehicle stalled without warning at highway speed, placing myself and others at risk of collision. Based on the dealerhip this needed to be serviced every 20k miles and hyundai deosnot recommend to consumers for some reason..

NHTSA ODI 11686205

I have had 3 fuel injectors go out on my 2022 Hyundai Tucson. When this happened it was completely random and my car would stall and I would be stuck on the side of the road. I have had to miss work due to this happening. They told me that they are only able to replace the broken one each time instead of replace the all 4 while covered under warranty. They also told me that fuel injectors breaking is a common problem in 2022 and newer Tucson's as they are higher pressure systems than previous models. Im worried that this is going to keep happening and I'm going to keep breaking down due to fuel injectors breaking and end up stranded somewhere.

NHTSA ODI 11685850

Hyundai has a known issue with GDI fuel injectors. Car begins to shake and lose power and eventually will stall due to cylinder misfire caused by defective injectors.

NHTSA ODI 11685103

Fuel injector failure. Car was losing power completely when pressing the gas pedal then would suddenly catch and go again. Then go very slowly with little power, almost got into an accident because of the loss of acceleration. They replaced the fuel injectors and it is now happening a second time with the check engine light coming on again. A RECALL NEEDS TO BE MADE! SEVERAL OF THE SAME COMPLAINTS ON HERE!!!!!!!

NHTSA ODI 11681043

While driving on highway going 65 MPH my car 22 Hyundai Tucson SEL dashboard lights turned red and shut off on the highway with no warning, was not able to put in park for 10 minutes. My safety was put at risk, the vehicle stopped mid drive on the highway with other vehicles. Dealership has not fixed or looked at the issue.

NHTSA ODI 11676949

While merging onto [XXX] in Southington, CT, the vehicle would not accelerate past 25 MPH which is very dangerous for merging onto an interstate highway. Luckily, my wife was able to safely pull over onto the shoulder. We shut the vehicle off for a minute, restarted it, and have had no problems since. There were no warnings, and no check engine indicator was displayed. I'll contact the dealer this month at a regular maintenance visit. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11667363

My high pressure fuel injectors and spark plug had to be replaced at 72,000 miles. My check engine light came on and the car started vibrating and was not accelerating properly. I spoke to three Hyundai dealership service centers and each of them acknowledged that it was a known issue with 2022 Hyundai Tucsons.

NHTSA ODI 11667496