Engine And Engine Cooling Problems of Hyundai Tucson - part 1

I have had the car in twice to the mechanic within the last 6 months for check engine light. He said I keep loosing oil, but there is no leak and it's something with the engine. Hyundai will not recall the engine, but I see so many people are having the same issue. On a 2020 vehicle, you should not have engine issues. At what point do they have a recall on this issue, as so many are reporting the same thing.

See all problems of the 2020 Hyundai Tucson 🔎.

Unknown -a catalytic converter clogged after being installed - only 14 months following installation, causing rough and unsafe acceleration, inability to shift gears properly, and need to drive with hazards on. It is clear that there is an issue with the engine/exhaust and system in this vehicle. Additionally, the car needs oil added regularly and seems to be burning it, as indicated by low level.

See all problems of the 2018 Hyundai Tucson 🔎.

I am submitting a complaint regarding a 2017 Hyundai Tucson ultimate awd equipped with the 1. 6l turbo gamma gdi engine. My vehicle currently has approximately 127,000 miles and has experienced sudden engine knocking consistent with rod bearing failure and/or catastrophic internal engine damage. The vehicle has been properly maintained, including regular oil changes. However, the engine began consuming excessive oil without warning. Upon inspection by an independent repair facility, the engine was found to have extremely low oil levels despite being within the normal oil change interval. After refilling the oil, the engine continued making severe knocking noises, and the repair facility advised that the engine is likely non-repairable and requires replacement. This failure appears materially similar to the rod bearing and engine failure issues already widely documented in Hyundai/kia engine defect investigations and class action settlements involving related gamma and gdi engine platforms. I have learned that Hyundai extended warranties for certain vehicles with similar engine defects up to 15 years/150,000 miles; however, my specific Tucson trim/engine configuration does not appear included despite experiencing the same type of failure. This vehicle has also previously required major drivetrain repairs under warranty, including two transmission replacements and turbocharger replacement. My concern is both financial and safety-related. A sudden engine failure or seizure while driving could create a serious roadway hazard and risk of loss of power in traffic. Additionally, Hyundai dealerships have advised that replacement engines for this vehicle are no longer readily available. I believe Hyundai should further investigate whether the 2017 Tucson 1. 6t gamma gdi engine should be included in existing engine defect warranty extensions and/or recalls.

See all problems of the 2017 Hyundai Tucson 🔎.

While operating the vehicle on the highway at speeds around 55 to 60 mph, without warning, the engine suffered a sudden, catastrophic internal mechanical engine failure that resulted in an immediate and complete loss of motive power, rendering the vehicle entirely undriveable. The vehicle was towed to an authorized Hyundai dealership for a formal tear-down and diagnosis. They Hyundai dealership technician formally diagnosed the issue as a catastrophic internal "pin failure" (structural failure of an internal engine pin component). This component defect caused a total mechanical breakdown of the engine assembly. Hyundai motor America has issued a corporate warranty denial for an engine replacement, despite the vehicle being covered under the Hyundai engine ii class action settlement (which extends powertrain protections due to widespread internal engine manufacturing defects), a sudden, un-warned loss of engine power while driving poses a severe and immediate safety hazard to the driver, passengers and other motorists on the highway. Hyundai's refusal to remedy this known structural defect leaves a dangerous vehicle un-repaired. I am requesting an investigation into Hyundai's denial of coverage for structural engine component failures on the 2. 0l nu engine platform.

The car has 57,000miles and needed a new transmission. Safety concern of the transmission failing while driving. There was a persistent and worsening rubbing noise once the car ran for 20 minutes or so. 4 visits to the dealer later, they confirmed the issue and Hyundai issued a warranty to replace the transmission with a remanufactured transmission. When I asked the dealer what happened, he said this was there 4th one in a few weeks. There were no indicator lights or anything besides the noise to indicate there was a problem.

See all problems of the 2023 Hyundai Tucson 🔎.

Oil drains very fast even with regular oil changes and maintenance. The vehicle began shaking and then completely stopped with very little warning. Check engine light flashed for under 60 seconds then vehicle would not move forward on the highway creating a major safety hazard. Engine smelled hot and like burning rubber.

See all problems of the 2016 Hyundai Tucson 🔎.

The vehicle will not get to highway speed causing it to impede traffic and presenting a safety risk for collision.

See all problems of the 2019 Hyundai Tucson 🔎.

2 years ago I had the engine replaced. Now on this new engine which has approximately 29k. The mechanic is telling me that I need a new engine. I called Hyundai and their telling me that is not under warranty anymore. What can be done?.

See all problems of the 2021 Hyundai Tucson 🔎.

Engine started knocking luckily I was right by my mechanics place. They said needs new engine. Not to drive as a rod might go right through the engine. Only 98000 miles on it. Maintenance always done on time.

See all problems of the 2012 Hyundai Tucson 🔎.

I experienced sudden unintended acceleration which propelled me over a curb, up an embankment, over a boulder and into a fence. I could have been killed or I could have killed others because I had no control of the car. The Hyundai corporation will not acknowledge this. The car was inspected and declared a total loss and is being moved to a location where it can be stored at no cost. There was no warning. Also this exact incident occurred with a Hyundai kona I owned. That incident occurred on January 8, 2026.

The cars speedometer screen and radio screen go black and sometimes flicker on and off. This makes it impossible to see the speed. Also the car stalls sometimes when this happens in traffic. The autonomous braking applies the brakes even when there is a large distance from other cars and objects to the point where it has almost caused me to get into an accident on numerous occasions. The driver attention alert comes on and off over and over again even though I’m fully focused on driving and well aware of what is going on and this sometimes happens in a sequence where all of the warning lights illuminate on dash. Sometimes all of the warning lights display on cluster after it goes black and then car says to shift to park when display goes back on causing safety concerns for me in traffic. In addition my sunroof glass is making a loud noise like it’s going to crack.

See all problems of the 2025 Hyundai Tucson 🔎.

The contact owns a 2016 Hyundai Tucson. The contact stated that while driving at an undisclosed speed, the check engine warning light was illuminated and there was an abnormal sound coming from the engine compartment. The vehicle was taken to a dealer where it was diagnosed that the vehicle needed an oil consumption cleaning. The vehicle was repaired however, the failure persisted. The manufacturer was not notified of the failure. The failure mileage was unknown.

The contact owns a 2019 Hyundai Tucson. The contact stated while driving at an undisclosed speed, the contact noticed an abnormal sound and the engine seized. The check engine warning light illuminated. The contact stated that while attempting to start the vehicle, the vehicle started. The failure reoccurred. The contact stated while attempting to start the vehicle, the vehicle started and the engine spuddered. The vehicle was towed to an independent mechanic where it was diagnosed with a failed engine. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The contact was advised to take the vehicle to the dealer. The vehicle was towed to the dealer where it was diagnosed with a failed engine. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and a case was filed. The contact was advised to take the vehicle to the dealer for diagnostic testing. The contact was later informed that the repair was not covered under the recall because of open recalls associated with the contact's VIN. The failure mileage was approximately 81,000.

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.

See all problems of the 2022 Hyundai Tucson 🔎.

I purchased this vehicle from carmax about 5 months ago. It had 74,xxx miles. Carmax showed no open recalls and a printed sheet from your site showing the same. Several weeks ago, while driving, the engine seized. I sent it to one of the local Hyundai dealers for repair. Hyundai said because recall campaign #966 had not been performed, they would not replace the engine under the extended warranty. When I purchased the vehicle, I had the foresight to purchase an extended warranty from assurant. Eventually I found they will cover the repair. I have to pay the $600 deductible, plus a $350 labor charge for diagnostic work. Here is my problem, carmax told me there was no open recalls (based on your web site), and I counted on carmax having an accurate knowledge about this when I purchased the vehicle. This is particularly disturbing because in 2022 carmax settled out of court with 30+ states in part, for failure to disclose open recalls on vehicles they sold. True, I could have checked myself, but how did your entity report no open recalls on this VIN, and carmax reported no open recalls on this VIN, but Hyundai was aware of the open recalls, and denied an engine warranty repair because the recall campaign had not been completed? there are two other open campaigns, # 933 and #p33 as well. The Hyundai dealer is going to perform these recalls after the repair. To summarize, I purchased this vehicle in good faith that the information provided on the NHTSA sheet, and the carmax sheet were correct there were no open recalls. My bank financed the auto under the premise it was a safe reliable risk for them. Now, I'm going to be out $950 plus rental car expenses I've already paid. Please contact me if you have more questions.

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.

Oil consumption is at an all time high. At last oil change I had milage 71847 on 3/8/26. I checked my oil on 4/26/26 with 73182 miles, oil was at the add mark on the dipstick which means 2 quarts was gone from my engine at about 1500 miles put on my car since the oil change. Upon reading up on this issue, it is a wide spread issue with several Hyundai models. I bought it used at a car dealship when it was only a year old, so the warranty is only for the original owner. I still owe $3400. 00 on this car and I am afraid the engine will go before it is paid off.

Sitting at a red light the vehicle seemed to almost stalled then lunged forward about eight feet almost colliding with the vehicle in front of me. To my knowledge the vehicle has not been inspected by the manufacturer nor has the problem been reproduced by a dealer or independent service center. To my knowledge there were no warning lights, messages or symptoms. I am somewhat unfamiliar with this vehicle since I've only owned it for 5 days. I picked it up on 4-25-26.

My hundai tuscon 2017 was making a whurring sound on the highway, at which time my rpm's were not going over 3. As I was looking for places to pull over on the highway, I heard a loud 'pop' and then my engine started smoking and an intense rattling ensued to where I could hear a series of parts drop out of the bottom of my car. My car began smoking and the engine completely stalled just in time for me to make it to the side of the road. I took it to a local shop for repairs and they showed me three holes in my engine.

My 2017 Hyundai Tucson is experiencing dangerous, sudden engine stalling, which are symptoms directly matching service campaign t1b. These critical safety issues surfaced following a total engine replacement in June 2025. Despite the vehicle being within the 12-month/12,000 mile workmanship warranty, the dealership is refusing to honor this coverage or offer goodwill assistance. My claim is based on a documented pattern of physical and technical negligence: - failure to update software: the dealership failed to perform the mandatory ecm/tcm software integration (campaign t1b) during engine swap, which is required to prevent the exact stalling I am now experiencing. - dismissal of warning lights (code p0456): one day after the engine replacement was “completed,” I returned to the dealership because the check engine light illuminated with code p0456. This was dismissed by the service provider without a proper diagnostic resolution, despite being a direct indicator of improper vacuum line reconnection during the engine installation. - mechanical negligence (coolant leak): post-engine swap, the vehicle developed a coolant leak, which was a direct result of improper reassembly. Additional proof of the lack of due diligence during the repair. The lack of follow-through, combined with the dismissal of a life-safety defect and poor physical workmanship, suggests a total failure in the case management process. I am urgently requesting assistance to resolve this hazardous situation.

2019 Hyundai Tucson experienced catastrophic engine failure, including internal damage. Vehicle previously had Hyundai campaign 966 (engine monitoring logic) completed. Despite this, engine failed without sufficient warning. Concern that prior campaign did not prevent engine failure.

See attached document for complaint.

Vehicle stalled approximately 15 times between April 17 and may 4, 2026, including once on interstate xxx at approximately 50mph with minor children ages [xxx] and [xxx] in the vehicle. The oil and battery lights illuminated simultaneously at each stall. Diagnosed as abs module failure first, then left front wheel speed sensor failure on the 2nd occasion, both confirmed by a Hyundai dealership. Multiple warning lights illuminated, including check blind spot and anti lock brake system messages on the dashboard but no error codes following the 2nd repair. The vehicle has been inspected and repaired twice by the manufacturer’s dealership with a 3rd repair currently pending as of may 11, 2026. An open case has been filed with Hyundai motor America regarding this issue. Issue remains unresolved and the vehicle is still at the dealership. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

The contact owns a 2019 Hyundai Tucson. The contact stated that while driving at an undisclosed speed, the vehicle unexpectedly stalled and was idling roughly. The message “stop driving” was displayed. The contact stated that the vehicle failed to accelerate and lost automotive power. The failure had occurred several times. On one occasion, the vehicle had to be towed. The vehicle was able to restart after several failures. The vehicle was taken to the dealer, where it was diagnosed with engine failure due to excessive oil consumption. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 59,000.

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

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.

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.

On Monday, [xxx], I was traveling northbound on [xxx] headed towards roanoke from salem at an approximate speed of 65 mph. At approximately mile marker [xxx], before the exit to [xxx] , the vehicle started to lose power rapidly, and the car began to go into what I perceived as "limp mode" and was shaking. In an attempt to not be stranded on one of busiest and most dangerous highways in va, I was able to get the vehicle pulled onto the shoulder of the on ramp of [xxx] going towards roanoke. By this time, the vehicle had completely lost power and was not able to move, so I shut it off. At this point, I was stranded on the side of [xxx] , and extremely busy highway. This was a great safety concern, as the shoulder was very narrow and cars were moving through 2 lanes of traffic with many drivers exceeding 75 mph. My own personal safety was greatly jeopardized with the failure occurring with absolutely no warning and shutting off the car while on [xxx]. The vehicles failure was catastrophic and was undriveable. The vehicle was then towed to a nearby shop. There were no warnings whatsoever before this failure occurred. No engine lights were on beforehand, and the car drove completely fine and has been comprehensively maintained its entire life. The problem of a rod-bearing failure has been confirmed with a local service center, one stop automotive in vinton. The service department at southern Hyundai based in roanoke va is refusing to look at the vehicle and submit a claim to Hyundai USA , even though the failure has already been confirmed by a licensed mechanic. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

See all problems of the 2013 Hyundai Tucson 🔎.

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.

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.

On March 21st, while driving my Hyundai vehicle, I noticed the vehicle began making a ticking sound. After stopping the vehicle, it slowly began catching on fire. The fire ultimately spread and resulted in the vehicle becoming a total loss. This created a serious safety concern and placed me at risk. I later learned there was a recall associated with the vehicle. However, I never received any recall notices because Hyundai reportedly had the wrong address on file. Had I been properly notified of the recall and potential safety risks, I would have done everything in my power to ensure the vehicle was inspected, repaired, and safe to drive. Because I was unaware of the recall issue, the vehicle continued to be operated without my knowledge of the potential danger. The incident caused significant financial and transportation hardship, including loss of reliable transportation and additional financial strain. Hyundai later reached a determination regarding the matter, but I remain concerned about the serious safety risk and the fact that I did not receive proper recall notification before the incident occurred. I am submitting this complaint because I believe the recall notification process and handling of this matter should be reviewed further due to the serious safety risk involved.

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.

The 2. 0l engine catastrophically failed during normal highway driving, consistent with a thrown connecting rod. The vehicle suddenly lost power on a roadway with tractor-trailer traffic. The driver and a child passenger narrowly avoided being struck by a semi-truck before the vehicle could be brought to a safe stop. No prior warning lamps, no check engine light, no abnormal noises, and no indications of any kind preceded the failure. The failed engine is currently at a Hyundai dealership and is available for inspection. The dealer has confirmed catastrophic engine failure and submitted an engine replacement request to Hyundai motor America. Hyundai motor America declined the engine replacement request, citing incomplete status on service campaign 966 (knock sensor detection system update for connecting rod bearing wear). The owner purchased the vehicle used and was never notified by Hyundai of service campaign 966. The owner also was never notified of NHTSA recall 20v543000 (abs module fire risk), which remains open and unrepaired on this vehicle, demonstrating a pattern of failed manufacturer notification to the current registered owner. This vehicle is a class vehicle in the Hyundai/kia theta ii engine class action settlement (in Hyundai and kia engine litigation), which extended powertrain coverage to a lifetime warranty for connecting rod bearing failure on 2018 Tucson vehicles equipped with the theta ii 2. 0l engine. The failure mode experienced is precisely the defect this settlement and campaign 966 were designed to address. Component that failed: engine, specifically connecting rod bearing/short block assembly. Component is available for inspection. Vehicle has approximately 71,000 miles. The failure created an immediate and severe risk of fatal collision involving a child passenger. Manufacturer has been contacted and has denied warranty coverage. Nhtsa action is requested regarding both the engine defect denial pattern and the unrepaired abs fire-ri.