What 983 owners told NHTSA about the 2017 Hyundai Tucson Fuel Cell

This unresolved issue has created serious safety risks. On two separate occasions, my vehicle lost power while crossing the Leo Frigo Bridge in Green Bay—an extremely dangerous scenario for both my family and other drivers. Most recently, within just ~40 miles of picking up the vehicle from service, the issue recurred. The service department reported finding oil on the ignition coils—symptoms consistent with known and documented warranty concerns such as: Valve cover gasket leaks Spark plug tube seal failure High-pressure fuel pump gasket leaks The vehicle has been brought multiple times to a certified Hyundai dealership for recurring problems including power loss, poor engine performance, and excessive oil consumption. Despite these repeated service visits, the underlying issue has not been properly addressed. I have now been informed that I am responsible for diagnostic charges—even though the vehicle is covered under the TXXM Engine Warranty Extension / Powertrain Limited Warranty due to known oil consumption-related defects.

NHTSA ODI 11679213

The contact owns a 2017 Hyundai Tucson. The contact stated that while attempting to accelerate, the transmission failed. There were no warning lights illuminated. The vehicle was taken to the local dealer, where it was diagnosed and determined that the transmission needed to be replaced. The vehicle was repaired, but the failure reoccurred. The contact stated that while driving approximately 25-30 MPH, the vehicle was making an abnormal rattling and knocking sound that was coming from the engine while accelerating. The transmission was shaking continuously while driving at 10 MPH. The vehicle was taken to the local dealer, where it was diagnosed with camshaft and engine failure and needed a cam finish over an advanced timing system overhaul. The contact was informed that the camshaft, CVT, timing chain and tensioner, front valve cover and valve cover gasket, turbocharger, turbocharger gasket, and turbocharger lines needed to be replaced. The vehicle was not repaired. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 92,000.

NHTSA ODI 11676554

While driving, the vehicle started knocking and jerking, lost power and began to run roughly. The check engine light initially flashed and then turned solid before the vehicle shut off. The next day, I took the vehicle to the dealership for a diagnostic after experiencing problems with knocking when the check engine light illuminated. The codes were P302 and 304 indicating misfiring. The diagnostic tech wrote the problem up as having oil in the cylinder and suggesting engine/turbo replacement for approximately $15,000.00. The engine has less than 100,000 miles. I asked about the 10/100. After inquiring about the recalls for GDI engines in the 2017 Tucson for rods causing engine fires due to oil leaking into the cylinders, the service agent stated that it was only the 2.0 and not the 1.6 with recalls. I said sir it is the same issue: high oil consumption, sputtering and knocking, check engine light indicating misfire. Now the oil is accumulating in the cylinders. He stated that because I am the secondary owner neither the dealership nor Hyundai will correct the problem. However, if I was the original owner the powertrain warranty would cover the repair. The problem with the 2017 GDI, DCT in the Tucson is a safety issue for all owners. Escalated the issue to Hyundai Motor America, agent Kyrillos, who said that he would contact the dealership to check for prior authorization with the dealership to see if they would cover it under the recall. After numerous calls (on my behalf) and finally speaking with Kyrillos, I was advised that the dealership denied the repair. I requested supervisor contact and have not had any further communication from the company. I did send a follow up email asking when I could expect to hear from them.

NHTSA ODI 11666810

The transmission failed, and it's only at 70k. This was only diagnosed AFTER being told that my dual clutch was faulty. I had that replaced, only to be told that my actuator was faulty and NOT the clutch, after haviing paid for the replacement. Now, the vehicle will barely move with rpms through the roof. So not only was Ithe vehicle misdiagnosed TWICE, the cost of repairs was sky high! This could have been avoided. I contacted the dealerships, at they advised that they did everything as hyundai instructed them. Well, hyundai was wrong, and now my vehicle doesn't even work.

NHTSA ODI 11658067

Car is burning oil. Oil change done at 3k and no oil in vehicle at all. Transmission shakes violently on start up and first movement and slips shifting gears. No response sometimes when pressing gas pedal to go

NHTSA ODI 11654236

The transmission in my vehicle failed while driving and the car completely shut off while driving. Less than 4 months after replacing the transmission with a brand new transmission, the engine failed while driving on the highway. The engine started sputtering, then it started smoking, then the car stalled.

NHTSA ODI 11635533

Greetings, I have had issues with the Hyundai Tucson 2017 I own for many months. Issues include among others an abnormal knocking noise from the engine, reduced engine power and/or hesitation, burning smell, oil leaking, and smoke coming out of the engine, misfires, and other issues. It happened many times on the highway and almost caused accidents and the last time it happened, the vehicle was towed, and recently the smoke coming from the engine forced me to pull over. I reported the issue to the dealer but they didn't recall or address the issue. The car has been maintained properly over time and now I fear for my life. It is totally unfair that about 100k of this brand have been recalled for the same issue, in my case it is just after I finished to pay in full the vehicle. I seek your support to have it addressed for safety

NHTSA ODI 11635446

There is an intermittent problem with the transmission. It’s impossible to predict when the transmission will slip. When navigating traffic, it has happened multiple times trying to pull out across oncoming traffic, and the transmission begins slipping so badly in a couple of instances nearly causing a side impact. There are no recalls related to this, but the dealership confirms it is common… the fact that it is intermittent makes it worse. You get used to the transmission performing as it should… Next thing you know it slips when you can’t afford for it to slip..

NHTSA ODI 11633518

I am writing to report a serious issue with my 2017 Hyundai Tucson SEL 2.0 that poses potential safety risks. The vehicle is consuming more than 4 quarts of oil every 1,000 miles, which is far beyond normal and acceptable levels. The car has approximately 166,000 miles on it and has been regularly maintained, including timely oil changes. Despite proper maintenance, this excessive oil consumption leads to frequent low-oil warnings, risking sudden engine failure if not continuously monitored. This creates an unsafe driving condition, particularly on highways or during long trips, as the engine could seize without warning. Additionally, I am aware that many other owners of Hyundai vehicles with similar engines have reported comparable issues. This suggests a widespread defect in the engine design or manufacturing process. I am requesting the NHTSA to investigate this matter further to determine if a recall, warranty extension, or other corrective action is necessary to address this issue. Hyundai should be held accountable for resolving this problem, especially since it compromises the safety and reliability of the vehicle. Vehicle Information: Year: 2017 Make: Hyundai Model: Tucson SEL Engine: 2.0L VIN: [Your Vehicle Identification Number here] Thank you for your attention to this matter. I hope for a prompt investigation and resolution to ensure the safety of all Hyundai Tucson owners.

NHTSA ODI 11631032

The engine appears to have a malfunction, particularly related to acceleration and oil consumption. The vehicle is available for inspection upon request. The vehicle experiences sudden jerking during acceleration, which can lead to loss of control and increase the risk of a collision. Additionally, stalling can occur unexpectedly, posing a significant hazard, especially in traffic. Yes, the issue has been confirmed by a local dealership, where they noted the jerking during acceleration and the high oil consumption. Yes, the vehicle has been inspected by the dealership, but it has not been inspected by the manufacturer or insurance representatives. There were no warning lamps or messages prior to the incidents. The symptoms first appeared approximately 8 months ago and is ongoing.

NHTSA ODI 11618415

Took my 2017 Hyundai Tucson 1.6t engine into the service center on 8/21 for a check engine light and Bluelink notification of "A possible condition with your Engine Control System has been detected" that came on Sunday 8/18. Service center diagnosed P0326 ($159.00) From the service center: We have pulled code P0326 for an issue with the knock sensor readings. The vehicle can sue an oil change as is due and there is a gasket leak which sounds like it is from turbo or manifold gasket which is causing that rattling noise you're hearing. Below is the three itemized recommendations for this vehicle. 1) Knock sensor replacement -$635 +taxes installed 2) Oil change recommended $ 85 +taxes 3) Turbo gasket replacement $205 + taxes installed. I bought my car in 2020 and only have 53,000miles on it and was told it's out of warranty so this isn't covered - even though the 2017 Tucson's are recalled/warranty for life for engine issues for the same exact reasons mine was brought in for. This is my second hyundai, which I have always loved; however, I am disappointed in the quality of car not being up to standard due to manufacturing, and I am paying the price for it. The10yr/100k mile and 5yr/60k mile warranty advertising is misleading and deceiving. If I could go back, I wouldn't have bought a hyundai

NHTSA ODI 11611797

The problem began in mid to late April 2024 with the Tucson shuddering in the driveway while moving forward slowly. This vehicle has a 1.6L turbo with a dual clutch transmission. The mileage was around 96,000 miles. Once on the road, it ran fine. Approximately a month later the check engine light came on and it began hesitating upon acceleration. It would change to the next gear, accelerate and slam me against the seat! Whenever I try to accelerate too fast, it hesitates and loses power until it "catches" and starts speeding up. This is very dangerous especially when accelerating from a complete stop or after a turn. It also has trouble going up a hill and has actually died out 3 times while attempting to go uphill at a low speed. I am the second owner and it is out of warranty. I have contacted the local Hyundai dealer but their shop does not have a very good reputation and is always backed up for 3+ weeks. They also charge $230 or more to hook up their code reader!! I've already taken it to 2 other shops where that was done at no charge. The code was P073F - Unable to engage gear 1. Of course the only option I've been given is to replace the transmission for $3000 or have it rebuilt for $4100. This problem makes it very dangerous to continue driving it. I get the oil changed every 5000 miles. Of course it's almost paid for but I'm afraid if I try to trade it in I'll be lucky to even get enough to pay it off. I have been endlessly researching this online for recalls, updates or remedies. I want to know if replacing the entire transmission is the only option or is it a component of the transmission or a computer module that is the cause. How do I know the new transmission won't do the same thing?

NHTSA ODI 11608352

The contact owns a 2017 Hyundai Tucson. The contact stated while driving at an undisclosed speed, the vehicle was shaking abnormally with an unknown warning light illuminated. The contact stated that the failure occurred while driving uphill. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 94,500.

NHTSA ODI 11603019

The car would hesitate to accelerate causing the engine to rev high and then take off. It had gotten progressively worse with no error codes detected. With a lack of code, nothing could be done. My daughter was not comfortable driving the car due to the fact it had gotten so bad so I was driving her to school. While going 50 mph the engine started to rev high then completely died with no error or warning. I was able to coast off safely, however an inexperienced driver may not have been able to do the same. A recall needs to be issued ASAP before there are more serious consequences.

NHTSA ODI 11591069

My engine began consuming oil at a faster rate. My miles per gallon decreased. Then while driving, my engine lost power, and then the check engine light came on without warning. Pulled into the closet mechanic (less than 2 miles) and mechanic found that I had lost all compression in cylinder 3 of my engine and that there was a large carbon build up. My engine just failed. I bring my Tucson in every 5000 miles for service.

NHTSA ODI 11586880

The contact owns a 2017 Hyundai Tucson. The contact stated while driving approximately 50 MPH, the vehicle lost motive power and the transmission shifted inadvertently. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic where it was diagnosed that the transmission needed to be replaced. The manufacturer was not notified of the failure. The vehicle was repaired, but the failure persisted. The failure mileage was approximately 100,420.

NHTSA ODI 11560098

Appears to be an issue with the Dual Clutch Transmission. Makes the suv jolt after starting, waiting in traffic/red light and/or randomly driving around. Speed is not a determine factor in causing this “jolt”, for it happens at any rate of speed. Fear is the suv will randomly just stall and/or completely give out while driving, especially on the highway!

NHTSA ODI 11559312

The DCT transmission shudders when first accelerating then smoothing out . it also at times will not accelerate at all for several seconds. This can be very dangerous while pulling out into traffic because it doesn't do it all the time.The dealer does know about the problem and has been confirmed . No warning lamps .

NHTSA ODI 11558937

Vehicle doesn't want to accelerate when it is suppose to. Press on the gas pedal and it goes to the floor and when it does decide to accelerate it erratic. VERY scary and unsafe. Has almost gotten my daughter and I in an accident.

NHTSA ODI 11557555

Cracked cylinder wall in engine, after major oil consumption issues, complaints filed with dealership, corporate offices, did oil consumption tests and further hyundai corporate recommended an engine clean out which helped for a while however last year they had to replace my catalytic converter because it was "clogged", but still maintain that it didn't have to do with the oil consumption issue. No warning lights came on engine just wouldnt accelerate properly when pulling out in traffic, made noises and would not perform as it should. I have all service records pertaining to this vehicle since we have owned it. Dealership is wanting us to pay 8k for repairs because hyundai says its not covered under the recall .

NHTSA ODI 11554299

When I'm stopped at a light and go to push on the gas, the vehicle doesn't move, then all of a sudden it just takes off. Next the exterior driver side door handle doesn't open I have to pull on it a few times then it opens, there's like a delay. There are tones of complaints online about this, it's like the 2017 model's were just looked over when it came to SAFETY. My car only has 70K. Thank you.

NHTSA ODI 11554417

As I was turning a corner the transmission seemed to disengaged; when I attempted to accelerate the car would not respond. It felt as though the car had shifted into neutral even though it is an automatic transmission and I had not made any adjustment. Very dangerous in I was in sn intersection and traffic behind and around me had no indication that my car had lost all power to move on its own accord. There could very likely have been collisions.

NHTSA ODI 11552386

My concern is who is going to pay for the damage to my car? I initiated a claim with Hyundai due to my car malfunctioning at a stoplight, the light turned green and I gently pressed the accelerator and it lurched forward and smashed into the car in front of me. I had taken my car in multiple times telling them the accelerator sticks and hesitates. Each time they told me nothing was wrong with it. I researched online and I found many people were having this same issue with the accelerator in the 2017 Hyundai Tucson. I was also told there is a software update available to help with this. The service department at the Dealership said there is not one. I have an appointment with the Hyundai service department on 12/20, I need to know who is going to pay for my car.

NHTSA ODI 11551814

This car has a the 7 speed DCT. This transmission is VERY unsafe. I have been fighting with the transmission losing power and being jerky for the last year or so. After looking online I found that EVERYONE with this transmission is having the issue. You never know when you will have power and it has almost got me into a major accident several times. There was a Class action lawsuit agains Hyundai in 2016 for the DCT transmission and they Hyundai lost. Yet they still put the same unsafe transmission in the 2017 and said they fixed it. Hyundai needs to be held accountable for lying to the consumer as well as putting the consumer in an unsafe situation.

NHTSA ODI 11550364

Very often the transmission does not kick in when the accelerator is pushed and gas is applied. I.e when crossing an intersection, when passing, when moving forward from a complete stop, when changing lanes, and when on busy freeways. This has been reported to Dealer many times beginning in 2017. This has occurred when I have had passengers in vehicle as well as when other drivers have been behind the wheel. I again reported incidents in September of 2023 but could not get an appt with dealer scheduled until November 6, 2023. Since most recent report to dealer, I have experienced at least 4 more incidents that could very well have been life threatening.

NHTSA ODI 11549987