Engine And Engine Cooling Problems of Hyundai Tucson - part 1

Knocking noise in motor and metal flakes in the oil. Called local dealership. They report no recalls for this issue.

See all problems of the 2017 Hyundai Tucson 🔎.

Approximately one month ago I had a high pressure fuel pump installed in my 2018 Hyundai Tucson. While driving on the highway, about ten minutes from home, my car suddenly burst into flames. There were no warning lights in the cockpit. There was no smoke in the cabin. Another motorist flagged me down. I got out of the vehicle just in time for it to become fully engulfed in flame. It burned down on the highway. Police and fire responded. Insurance is investigating. If I was inside the vehicle, I would have certainly died.

See all problems of the 2018 Hyundai Tucson 🔎.

The contact owns a 2017 Hyundai Tucson. The contact stated that while driving at an undisclosed speed, the engine made a ticking sound. No warning light was illuminated. The vehicle was taken to the dealer and was repaired under NHTSA campaign numbers: 20v543000 (service brakes, hydraulic) and 21v727000 (engine); however, the failure occurred after the recall repairs were performed. The contact stated that while driving at an undisclosed speed, the vehicle stalled and failed to accelerate above 40 mph. Additionally, while depressing the accelerator pedal, there was an extremely loud ticking sound coming from the engine. The check engine warning light was illuminated. The vehicle was taken back to the dealer; however, the vehicle was not yet diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 67,700.

The oil consumption issue has begun. At about 75k miles, my 2018 Hyundai Tucson 1. 6l turbo is burning oil at an insane rate. And there is no indicator of it occurring (no codes or anything on the dash) until it's too late. Hyundai is now well known, and aware, for this problem and it is a catastrophic safety issue because of the possibility of the engine seizing and disabling the vehicle. It isn't negligence on the consumers part either, especially when timely and consistent oil changes are being done. *note* my vehicle has had the transmission (6 speed dual clutch) replaced at around 30k miles and is having the same issue again (at 75k miles). So first the transmission and now the engine!.

Car is a gas hybrid (not plugin). 3 occurrences over the last couple of months. Car emits a warning sound and a message on the dash says "check hybrid system. Stop safely". Basically right after this message the car starts losing power and stops. Doesn't matter if on freeway or not. You need to find a place to pull over or you stop traffic wherever you are. Looks like hybrid battery is completely drained. Can not be re-created. Dealer has it now for the 3rd time. Dealer in the past have not been able to find cause/cure since this issue is not posting any errors to the onboard diagnostic system. Temporary 'fix' is to power off car, and power back on. Looks like this is a 'known' issue though as its being reported by quite a few people online.

See all problems of the 2022 Hyundai Tucson 🔎.

The contact owns a 2017 Hyundai Tucson. The contact stated that while starting the vehicle and driving at an undisclosed speed, there was an abnormally loud grumbling sound coming from the engine. There was no warning light illuminated. The contact stated that the vehicle unexpectedly entered limp mode. There was no warning light illuminated. The vehicle was towed to the dealer but was not diagnosed or repaired. The manufacturer was made aware of the failure and informed the contact that documentation of previous oil changes was required. The contact stated that the manufacturer accused the contact of a lack of maintenance, which was associated with the engine failure. The failure mileage was approximately 98,000.

Vehicle has failed to start with no warning lights (completely blank infotainment screen) and no sounds when start button is pressed. Vehicle also completely shuts down when stopping in traffic and takes several attempts at restarting before the vehicle actually starts and able to move. This is a severe life threatening or serios injury situation that Hyundai seems to have no interest in solving. Incidents have been video when safety is not an issue.

See all problems of the 2025 Hyundai Tucson 🔎.

Hyundai Tucson sport 2016 gdi engine. I am the original owner of this truck I have taken care of this truck so much it being my first brand new purchase. No oil leaks nothing! when I first purchased the vehicle I noticed that it would stall when I would accelerate but did not think too much of it since it was brand new. A few years passed started to notice frequent oil changes were supposed to be made. Another few years turbocharger went out had to get it replaced. The engine consumes so much oil at first I thought it was because the turbocharger was out so when I got it fixed I thought that would fix that issue and it didn’t. I got an oil change March 2, 2026 and on March 21, 2026 I was on the highway and the truck started to shake really bad I exited the highway went straight to the oil place they said I had no oil on the dipstick I got another oil change (expensive) and when I turned on the car to leave the car shook again and the engine light was flickering on and off and finally stayed on the dash board. Barely made it home. Got a tow truck to tow it to Hyundai dealership they told me they will not see it unless I pay the diagnostic fee of $200 and even then they think it’s the engine with everything I described to them. They said since there are no recalls on the Tucson that Hyundai will not do anything for me I would have to pay out of pocket for everything. Had to pay the tow truck again to tow it to my house ($250). My car has all the symptoms all the other cars have that they have recalled. This is a huge safety issue because I drive on the highway a lot and everyone knows a car with no oil is extremely dangerous.

See all problems of the 2016 Hyundai Tucson 🔎.

I bought this car 6 months ago. I did not know it had a recall on the engine. The engine just died a week ago. I brought it to Hyundai and the confirmed it was a recall and go ahold of corporate. Corporate is refusing to fix the recall because they said "I should have brought it in at the original recall in 2020. " I did not own the car there and I was not aware of the recall at all. [xxx] is my husband he is the other owner of the car. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

My 2015 Hyundai Tucson with the 2. 4l engine developed a loud engine knocking sound while driving. The knocking became worse and the vehicle became unsafe to drive due to the possibility of sudden engine failure. The vehicle is currently at a Hyundai dealership and has been there for over a month. The dealership denied the warranty claim stating that a different engine component failed instead of the connecting rod bearing. This engine is part of the known theta ii engine defect issue that has caused engine failures in many Hyundai vehicles. A sudden engine failure while driving could result in loss of power, difficulty steering or braking, and could increase the risk of a crash. I am filing this complaint because the engine failure symptoms match the known defect pattern, and the vehicle may be unsafe if the issue is not properly addressed. Hyundai Tucson with 113,000 miles and failing engine. I’ve been told repairs have amounted to $10,000. I was told my car has severe engine failure and must be replaced by Hyundai of the shoals in tuscumbia, al. Engine failure is dangerous as a fire may start from a metal piece and also loss of control of vehicle is possible. Hyundai has denied warranty as they say the exact part in theta 2 engine settlement is not failing. I have had to complete recalls on this car since the first payment I made on it. The engine knocking began a month ago and that’s about how long the dealership has had my car.

See all problems of the 2015 Hyundai Tucson 🔎.

While driving my vehicle, the engine rpm suddenly revved very high, and the vehicle hesitated to accelerate. A warning messaged appeared stating "transmission too hot stop safely. " I was driving up a hill when this happened. I pulled over and turned the vehicle off for about two minutes. When I restarted the vehicle, the warning message disappeared even though the vehicle would not realistically have cooled down that quickly. The issue concerns me because it could create a dangerous situation in traffic if the vehicle loses power or hesitates to accelerate when pulling into traffic or climbing a hill. The problem has occurred without warning and does not leave and persistent warning lights afterwards. I am very scared to drive this car, especially when I have my child with me. If I need to move out of the way and someone is driving that is not paying attention, there will be an accident because of the hesitation and the non-movement when I accelerate. I am reporting this issue in case it is related to a defect with the transmission system in this vehicle.

While driving at highway speed, the engine suffered a sudden connecting rod bearing failure (cylinder 3) with no prior warning lamps, messages, or symptoms. The vehicle made a slapping noise, a belt came off, the engine died, and would not restart. The vehicle was towed to an authorized Hyundai dealership. The driver, a [xxx] [xxx] , was able to safely guide the vehicle to a stop without injury. The dealership inspected the engine and confirmed a complete cylinder 3 connecting rod bearing failure. The technician contacted Hyundai techline, who confirmed the diagnosis and recommended engine replacement. The estimated repair cost is $6,500. The failed engine is available for inspection at the dealership. This vehicle is a 2019 Tucson with the nu 2. 0l gdi engine, which is covered under the e2 class action settlement for connecting rod bearing defects. Hyundai service campaign 966 provides a ksds software update designed to detect abnormal bearing noise before catastrophic failure occurs. This update was never performed on the vehicle. The 2019 Tucson was not added to campaign 966 until April 2022, after the vehicle had already been purchased used. The owner was never effectively notified of the campaign and the vehicle was never at a Hyundai dealership where the update could have been performed. Hyundai denied warranty coverage solely because campaign 966 was not completed, despite confirming the failure is the exact defect type the campaign and settlement were designed to address. The vehicle had only 49,437 miles at the time of failure. The engine failed without any prior warning — the exact scenario campaign 966 was designed to prevent. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

See all problems of the 2019 Hyundai Tucson 🔎.

While driving on the freeway, my 2021 Hyundai Tucson se (72,021 miles) suddenly and without warning lost power and entered limp mode. I was able to safely maneuver to the shoulder and exit the freeway. The check engine light came on and is currently flashing. I took the vehicle to autozone where code p1326 was retrieved. I then took it to pep boys for a full diagnostic where p1326 was the only code present. The pep boys report states the vehicle requires immediate attention. The vehicle remains in limp mode and the check engine light is flashing. The vehicle is not being driven as it cannot safely reach freeway speeds. I contacted Hyundai customer care and was assigned case # xxx. I also contacted a Hyundai dealership who attempted to charge a $225 diagnostic fee despite p1326 being a known Hyundai defect covered under recall/service campaign. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

See all problems of the 2021 Hyundai Tucson 🔎.

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.

On March 10, 2026, my 2017 Hyundai Tucson entered 'limp home mode' while driving, a known safety defect that causes a sudden loss of engine power. Diagnostic testing confirmed error code p1326 (knock sensor detection system - ksds). Despite this vehicle being covered under the theta ii engine class action settlement (recall 209), which provides a 15-year/150,000-mile extended warranty for this specific issue, the dealership (jim ellis Hyundai of atlanta) is refusing to perform the warrantied repair. Instead, the dealership has provided an estimate (#xxx) attempting to charge me $816. 22 for the knock sensor replacement. They are also withholding the full gds diagnostic scan reports and freeze frame data despite multiple written requests. Furthermore, the dealership is threatening to charge daily storage fees while actively denying a mandated safety repair. This refusal to honor the settlement warranty leaves the vehicle in an unsafe, unrepaired condition. This vehicle is a subject of the in Hyundai and kia engine litigation ii settlement. The refusal of the dealership to perform the ksds-related repair (p1326}) is a direct violation of the court-approved settlement terms and a failure to address a documented safety defect. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

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.

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.

This car has major oil consumption that affects the engine and catalytic converter. This can cause engine damage and stalls in driving that affect safety on the roads because the car doesn't accelerate properly. There were no warning signals to indicate this being a problem with the car, especially at purchase. This car will get an oil change and in less than a week, the oil is gone and bone dry.

I am submitting a vehicle safety complaint regarding my 2024 Hyundai Tucson hybrid. The vehicle has a recurring engine warning issue (code p0471) that has not been resolved despite multiple repair attempts by an authorized Hyundai dealership. Additionally, there is a concerning discrepancy regarding vehicle usage while in dealership custody. My records indicate a substantial increase in mileage during service, which is not reflected in official service documentation. This raises concerns about vehicle handling and accountability. Hyundai has declined to escalate or properly address the issue and has advised that they will continue repair attempts without further resolution. Given the recurring nature of the issue and the lack of accountability, I am concerned about potential safety risks. I respectfully request that this matter be reviewed and recorded as part of any ongoing safety investigations.

See all problems of the 2024 Hyundai Tucson 🔎.

The transmission began slipping and hesitating within days of purchase. The vehicle intermittently fails to accelerate when pressing the gas pedal, especially when pulling into traffic or crossing intersections. This creates a serious safety risk because the vehicle does not respond when needed, leaving me exposed to oncoming traffic. The issue is intermittent and does not always trigger warning lamps or fault codes. The problem has been reproduced multiple times by me while driving under normal conditions. The selling dealer performed only a brief test drive and stated they could not duplicate the issue, but the hesitation and failure?to?accelerate continue to occur. The vehicle has not yet been inspected by Hyundai, but the symptoms match known issues with the 2016 Tucson’s dual?clutch transmission and tcm logic. There were no warning lights prior to the failure, and the symptoms first appeared within the first week of ownership. The vehicle is available for inspection upon request.

The contact owns a 2017 Hyundai Tucson. The contact stated that the vehicle was consuming an excessive amount of engine oil. There was an abnormal knocking sound coming from the vehicle. There was no warning light illuminated. Due to the failure, the vehicle was towed to a dealer, and the excessive oil consumption was confirmed. The contact was informed that the vehicle was included in NHTSA campaign number: 21v727000 (engine), and the engine was replaced. The vehicle was repaired, and a family member retrieved the vehicle and drove it to the residence without failure. Several days later, the family member started the vehicle, and fuel started pouring out from underneath the vehicle. Due to the failure, the vehicle was towed back to the dealer and was diagnosed the vehicle with an o-ring failure inside the fuel injectors. The dealer repaired the o-ring, and the contact picked up the vehicle from the dealer. Soon after retrieving the vehicle, fuel started pouring out from under the vehicle at start-up. The vehicle was towed back to the dealer and remained with the dealer. The manufacturer was notified of the failure, and a claim was filed. The vehicle was not repaired. The failure mileage was approximately 68,000.

"on [xxx], my 2016 Hyundai Tucson (VIN [xxx] ) experienced severe engine power loss and mechanical noise under load while driving uphill, creating a dangerous safety situation. This occurred 2 days after a dealer visit (February 19, 2026) where an open ksds service campaign (TSB hce22-14-e600-tl, issue 10d021) — directly related to engine monitoring — was left incomplete. The dealer subsequently denied an engine evaluation citing mileage over 150,000, despite the open campaign having no mileage restriction and despite a prior verbal commitment to cover repairs. Multiple follow-up attempts by phone, email, and whatsapp have been ignored. " information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Oil extremely hot and burnt to oil stick. Running really hot. Dangerous possible fire hazard.

Low oil, burnt oil on dip stick, engine running dangerous hot, lights on on dash, engine knocking.

I have experienced two near-fatal incidents involving a sudden, uncommanded loss of motive power while traveling at highway speeds (approx. 70 mph). On February 11, 2026, the vehicle entered "limp home mode" without warning, dropping speed to 60 mph and 2000 rpm in heavy traffic. This caused an immediate and dangerous speed differential, nearly resulting in a high-speed rear-end collision. Simultaneously, the ac system disabled, indicating a severe engine protection event. Manufacturer negligence: the vehicle was taken to courtesy Hyundai of tampa twice for this issue (code p0087). They performed a "knock sensor" replacement and cleared data points, assuring me the vehicle was safe. The failure recurred immediately. I subsequently took the vehicle to brandon Hyundai on February 13, 2026. Despite my reports of near-fatal highway failures, brandon Hyundai was instructed by Hyundai corporate to merely repeat the "knock sensor" replacement—a repair that had already failed to resolve the dangerous condition. Critical safety admission: on 02/23/2026, brandon Hyundai service advisor abel gomez explicitly admitted that this repair is "not a fix, it is a temporary thing until it shows again," yet stated they must follow corporate’s directive to release the car. Requested action: Hyundai is knowingly releasing a vehicle with a recurring, life-threatening defect (p0087/sudden power loss) by performing "band-aid" sensor swaps instead of addressing the high-pressure fuel system or internal engine failure. This practice is a direct violation of the safety act. I request an immediate investigation into Hyundai’s refusal to perform permanent repairs on gdi engines displaying these catastrophic failure codes.

I am submitting this complaint regarding Hyundai safety recall #290 (NHTSA recall no. 25v893) as it applies to my vehicle, VIN [xxx] . I received the official recall notice by mail on February 13, 2026. The recall identifies a defect involving the tow hitch wiring harness control module, which may allow water intrusion. According to the recall documentation, this defect can cause inoperative stop lamps and, in rare cases, an electrical short that could result in overheating or a vehicle fire. Since receiving the notice, I have contacted Hyundai motor America corporate customer care three separate times seeking escalation and guidance on how to safely address this recall. During each call, Hyundai stated that no repair solution, parts availability, or timeline exists for remedying the defect. Despite the recall involving a documented fire risk and potential brake/stop lamp failure, Hyundai representatives advised me that I could continue driving the vehicle while waiting indefinitely for a remedy. No interim safety measures, inspections, alternative repairs, or mitigation steps were offered. I am concerned that Hyundai is failing to properly execute a federally mandated safety recall and is placing consumers in the position of operating vehicles with known, unresolved safety defects. Being advised to continue driving under these circumstances creates a risk to vehicle occupants and to other motorists. I am requesting that NHTSA review Hyundai’s handling of recall #290, specifically regarding recall remedy delays, lack of escalation, and failure to mitigate an acknowledged safety risk, and take any enforcement or compliance action deemed appropriate. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

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.

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.

I am writing this letter to formally document a series of catastrophic safety failures and gross negligence regarding my 2018 Hyundai Tucson. On two separate occasions, including as recently as Wednesday, February 11, 2026, I narrowly escaped a fatal high-speed collision because this vehicle entered "engine protection mode" while traveling at highway speeds. Incident timeline: previous service: I have visited courtesy Hyundai of tampa twice for engine-related symptoms and code p0087. They replaced the knock sensor and assured me the vehicle was safe. Safety incident (Feb 11, 2026): while driving on the highway, the vehicle suddenly lost power, dropping to 60mph and 2000 rpm (limp mode) in heavy traffic. This sudden deceleration nearly caused a high-speed rear-end collision. Current status: the vehicle is currently at brandon Hyundai (as of Feb 13, 2026). I have been told a review will take 3-5 business days, leaving me without safe transportation or a loaner vehicle. Negligence and liability: courtesy Hyundai of tampa was aware of the recurring p0087 code and engine performance issues. By clearing codes or replacing minor sensors (knock sensor) without addressing the underlying high-pressure fuel or internal engine failure, they released a dangerous, defective product onto the road. This vehicle is clearly covered under the theta ii gdi engine settlement and service campaign 966. The local dealerships are willfully avoiding a necessary engine replacement to save on internal costs, despite knowing the vehicle is prone to sudden failure. Demand for action: immediate loaner vehicle: I require a safe rental/loaner vehicle immediately, paid for by Hyundai, while my car is being inspected. Full engine replacement: I am demanding a full engine replacement as previously indicated by technicians should the light return. Expedited review: I am extremely unsatisfied to be told again I have to wait "3-5 business days" for a safety-critical evaluation of a vehicle that has alre.

Component: engine / electrical system / fuel system incident date: February 9th, 2026 vehicle speed: 45-50 mph description: while traveling at highway speeds on a major roadway, the vehicle experienced a catastrophic and sudden engine stall without any prior warning or dashboard indicators. The engine shut off completely while in motion, resulting in an immediate and total loss of power steering and power-assisted braking. I was forced to perform a high-effort emergency maneuver in heavy traffic to reach the shoulder and avoid a collision. This vehicle is used to transport myself, my coworker and my family whose lives was placed in immediate danger by this failure. Since the start of the financing agreement, this vehicle has a documented history of recurring sensor issues and failed repair attempts at the dealership (route 1 Hyundai). The dealership has previously attempted to address electrical/sensor malfunctions, but the root cause remains unresolved, leading to this life-threatening stall. I believe this is a significant safety defect in the vehicle’s electrical or fuel management system that poses an unreasonable risk of accidents and injury.

See all problems of the 2020 Hyundai Tucson 🔎.

My truck started knock and losing power as I drove it. I took it to get serviced put the machine same is was a recall on the engine. I took it to the Hyundai dealership with in 2 weeks he said it was rejected by Hyundai to replace my motor. I service my car but they said I didn't. If it's a recall and not my fault.

See all problems of the 2014 Hyundai Tucson 🔎.

The vehicle has consumed the oil and no light came on. I drove and I checked when the running engine start doing a dry noise and loose the power. The stick was completely dry, I filled with 2 litters and now the stick show in the half. My vehicle has 60k miles and tomorrow will check on the servis. It is unacceptable first how the vehicle consumed the oil and the second the system didn't notify risking an overheat and posing an elevated risk to spop in the middle of the road causing an accident or starting a fire due to overheat.

This engine has 70,000 miles on it and has burned a quart of oil every 2500 to 3000 miles, two full quarts between oil changes. In talking to others Hyundai owners, they have similar issues. I have owned multiple other brands of vehicles with well over 150k miles and they did not burn any oil. Fords, bmws, volvos, and subarus.

The contact owned a 2021 Hyundai Tucson. The contact stated that while driving at 10 mph, an abnormal clicking sound was coming from under the hood. No warning lights illuminated. In addition, the contact managed to pull over to the shoulder of the road, where white smoke was noticed leaking from under the hood, and the intensity was increasing while the smoke turned black. The local fire department arrived on scene to extinguish the fire. The source of the fire was not identified. It was unknown if a fire report was filed. A police report was filed. No injuries were sustained, and medical attention was not sought. The vehicle was towed to the contact's residence. The vehicle was deemed a total loss as it was majoily consumed by the fire. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 65,000.

On Saturday January 31, 2026, I was driving and the tachometer started to go low like the car was going to stall out and the car began to shake. Then the check engine light came on. I was afraid to drive it, so I parked it in a church parking lot and had it towed to burlington Hyundai on Sunday February 1, 2026. On Monday February 2, 2026 burlington Hyundai said there was a problem with the spark plugs and that was why the check engine light came on. They replaced the spark plugs and it was covered under warranty. I got my car back on Tuesday February 3, 2026.