What 370 owners told NHTSA about the 2019 Hyundai Tucson Fuel Cell

I have a Hyundai Tuscon 2019, which was pre-certified by Hyundai. This particular car was part of a lawsuit because of a knock sensor issue. The lawsuit information is here: [XXX] The knock sensor failing is not really what causes the safety issue. The engine symptoms when the sensor fails is the issue. The engine goes into "safety mode" which limits the car to a significant slower speed. The problem is that Hyundai has now tried to fix this issue twice on my vehicle, and the knock sensor continues to fail. To be clear, they've replaced the sensor twice. Based on the lawsuit, the court mandated them to fix the knock sensor. They have done that free of charge, but the sensor continues to fail. To me this sounds like a manufacture issue. It is incredibly dangerous when you're on a highway and the sensor fails. It happened to me, and it was almost catastrophic. The car slowed down and there is nothing you can do about it. I noticed there was something wrong very quickly and put my hazards on. If I didn't, I may not be writing you here. You could easily get into a significant accident, and from that could lead to injury or loss of life. I am asking for a review of this. I have my service records as well as recorded conversations with Hyundai corporate regarding this issue. Service records are attached. I live very close to NHTSA HQ and willing to come in if necessary. To me, this is concerning enough for that.. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11578977

While driving, the engine completely lost power and was unable to go more than a couple MPH. We had it towed to the dealer and they told us it was a common issue on Hyundai engines and the fix was to replace the entire engine. It is available for inspection. Safety was compromised because we were in traffic when the power failed. Yes, we had the dealer confirm it. The only prior warning was that oil consumption was very high, which the dealer also confirmed is common.

NHTSA ODI 11578198

The 2019 Hyundai Tucson was being driven home when all of a sudden acceleration was reduced to 25-30 mph. The Engine light went on while this happened. Got the car home, thankfully was off the highway and had it towed to the Dealership. Dealership informed me that it was an engine problem- a cylinder was blown and new engine would be needed on a car that had just reached the 40,000 mile mark. 40 other cars were brought into the dealership the same week and all needed new engines. If this car stopped working on the highway the consequences would have been dire! It is almost 2 weeks without a car- Dealership had no loaners left and we still don't have an answer from Hyundai if they plan to cover the engine still under warranty. We were told Hyundai had been denying allot of engines under warranty. And we were told it takes a long time to get an engine even if approved by Hyundai. If I must rent a car for a month or more, it will be very expensive. If 40 owners showed up at the same dealership in one community in the same week what is happening nationally and why hasn't Hyundai issued a recall? Do we have to wait until people's cars stop operating at full speed on a busy highway causing multi care pile ups before Hyundai speeds up response to repair but more importantly notifies owners of their vehicles this is a problem- a BIG problem!

NHTSA ODI 11576885

On [XXX] as I was driving down the highway, the check engine light came on the dashboard and the car lost acceleration. I could not go any faster than approximately 30 miles per hour. Very dangerous situation when you’re traveling in a lane of traffic that’s is doing 65/70 mph. I was able to get the car to Premier Hyundai, a dealer in Seaside, CA. At that time there was a recall for the Knock sensor. They replaced the knock sensor at that time and did some other services including an oil change and sent me on my way. They told me at the time that the code that had come up was P1326. Entering this incident now, because I realized I had missed reporting this specific incident. This VIN# has had the issues 5 times since the [XXX] incident and I feel very strongly that this is a HUGE SAFETY ISSUE. when this happens when you are driving down the freeway at 65-70 MPH and it suddenly goes into LIMP MODE. You are at the mercy of the cars that are approaching you from behind doing 70 when you're only able to do 30 mph. This is an ACCIDENT WAITING TO HAPPEN. PLEASE Do SOMETHING. I see where you closed an investigation into these issues. - PLEASE REOPEN the investigation and hold the manufacturer accountable. These settlements they come up with are not worth the paper they're written on. The consumer is getting fed up and we need someone to help us. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11575710

On March [XXX], at [XXX]., on my way to a meeting, my Hyundai Tucson 2019 suddenly lost acceleration at 35mph. Immediately, the engine light came on and flashed very constantly. The acceleration pedal was not able to give more speed. There was a lot of traffic, and it was a very scary moment. I was very close to the Hyundai dealership at 750 N York St, Elmhurst, IL 60126. I spoke with one of their representatives, and I was informed that they would evaluate the problem, but it would be up to two days before they could give a full diagnostic; this step will be $185.00, but they will call me before they do anything with the car. The dealership paid for my Uber ride back to work, as they said that no loaner cars were available. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11575865

bought the car in august with 82000 miles and within 2 weeks engine light came on and has had a knocking issue, carmax could not get me in for 4 weeks from the date i called for a "diagnostic testing". after replacing knock sensor -- engine stopped on 3/3/24 and now needs to be fully replaced

NHTSA ODI 11575557

Was driving home from shopping on highway- lights flashed on dash and check engine light came on. Driving on highway and car goes into “limp mode” and will not go over 30 mph. Almost got rear ended by car coming up from behind traveling at normal highway speed. DANGEROUS!!! This is 5th time this has happened! The manufacturer needs to address these issues. Its happening to way too many people! [XXX] Theres a facebook group too but i can’t seem to get the url. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11575690

Engine failure I was driving down 422 East to king of Prussia. Engine failure I was driving down [XXX] to king of Prussia. My car jumped then began creating a sharp chirping sound from under the dash. I was in the middle of traffic. My safety was put at risk as there was no warning. I was able to get off the exit but immediately after, the cars engine light began to flash, oil censor, and I turned my car off. I was stranded on the [XXX] with cars zooming past me. I created a danger to myself and others as it was difficult to see around me coming off the exit. The vehicle is currently at Faulkner Hyundai awaiting a submission to the warranty company with me on my hands and knees praying to god it gets approved. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11574989

see attachment for details

NHTSA ODI 11572851

On [XXX] I dropped off the car to dealership because engine light was on. They said it was the Catalytic converter and replaced it with about 95,607 miles on it. On [XXX] I was driving on a 50mph road and my speed dropped to about 10mph and then the car began shaking and engine light came on. I got it back up 20 mph to get it pulled over to safety Avoiding an accident. I had it towed back to same dealership and told it was the Knock Sensor and had it replaced. On [XXX] engine light began flashing again and I had it towed back to dealership. Argued back and forth with dealership and corporate on safety and honesty. I picked it up on [XXX] and pulled out of dealership and it began jerking and shaking and lost power on a 45 Mph road stopping traffic and avoiding several accidents!. Had it towed to a different dealership that day and it sat there for months. then finally an oil consumption test was begun but engine light returned and then on [XXX] we were driving on a 50 mph road and the speed dropped to about 10 and began shaking violently and then the engine light came on. This time with my 9 year old grandson in the car!!!! And avoiding an accident. Now with about 113,000 Again we had it towed and then the combustion cleaning was done at dealership. Brought it home still in the oil consumption test and now light back on and dealership is saying not burning oil but now Catalytic converter again??? It is Not SAFE to drive . Someone could be KILLED! INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11572064

My truck keeps showing lights and is displaying that the crash collision is disabled.

NHTSA ODI 11571598

engine light on and gave code p3001 so change spark plugs and ignition coil and still same code ,manufacturer run compressor test and they said compartment 1 there is no compressor.and suggested me to change engine and its not even 100000 mile on ccr it just 80000.

NHTSA ODI 11570692

The vehicle was repaired under the major engine failure recall. Took the dealer months to replace the engine and now they are reporting the transmission is bad too. The car had absolutely no issues pre engine failure leaving me stranded. From reading up on forums I think transmission failures are just as common as engine leaving you stranded on a busy highway.

NHTSA ODI 11570432

The contact owns a 2019 Hyundai Tucson. The contact stated that while driving approximately 55 MPH, the check warning engine light started flashing and the vehicle started to lose motive power and stalled. Upon inspection, it was discovered that the engine oil level was very low. The vehicle was towed to the local dealer, but the cause of the failure was not yet determined. The contact stated that an oil consumption test was being performed by the dealer. The manufacturer was notified of the failure. The failure mileage was 38,000.

NHTSA ODI 11568954

The contact owned a 2019 Hyundai Tucson. The contact stated that while the contact's wife was driving and parking the vehicle, the contact's wife depressed the brake pedal and the service brakes were inoperable. In addition, the contact stated that the anti collision braking system was inoperable and did not function as intended. The contact stated that due to the failure, the vehicle crashed into several oversize planters in the parking lot. In addition, the vehicle crashed into a wooden fence and then crashed into a tree. The contact's seventeen-year-old granddaughter was seated in the front passenger seat of the vehicle. The fire department and the police arrived on the scene. A police report and fire report were filed. The vehicle was towed to a local tow yard. The contact's granddaughter sustained a concussion and currently suffers from headaches. The contact's wife sustained an injury to the mouth due to the deployment of the air bag. The manufacturer was made aware of the failure but provided no assistance. The failure mileage was approximately 27,000.

NHTSA ODI 11569111

The check engine light goes on and off every few weeks and it would stay off for a few days! The last code I had was P0420 that came up and I had a different one before that and it was for the catalytic converter! So I had already made the appointment to get it checked out and it was a faulty catalytic converter! Luckily my car is still under warranty I didn’t have to pay out of pocket! Had the catalytic converter changed last year and again today almost a year apart!

NHTSA ODI 11568783

The paint on the hood of my 2019 Hyundai Tucson started peeling in August 2023. I took it to a Hyundai dealership in October to see if they could fix it. The dealership said it was a manufacturer's problem and my paint insurance was not going to cover it. The employee told me that he would submit a claim to Hyundai, asking if corporate would cover part of the cost. I have yet to receive a response.

NHTSA ODI 11568286

On November 8, 2023 my check engine began flashing and my car lost Speed/Full power. I knew there was a knock sensor issue because I had this replaced in May of 2023 in order to comply with extended warranty services. I immediately pulled over to see if there was an identifiable issue. I was able to make it to a local orileys and they did a diagnostic check. It gave the p1326 code which I researched and found this to be the dreaded "needs a new engine code". I wasn't able to get an appointment until November 21st with a dealership. The one in my area wasn't taking anymore due to have over 100 vehicles with the same issue. My car has been at a dealership now since my November 21 st. It's extremely difficult to get a call from these people with any information. I called Hyundai and got a case manager, but that wasn't much help either. He said the dealership was very difficult for him to get in contact with as well. After numerous attempts and no returned calls or texts, I was finally asked for my maintenance records which I sent. I have all oil change records which showed the maintenance was done and in the correct manner and time frame. On January 10th I was told that my issue was not the rod bearing issue that is covered under warranty, but instead it was a piston slap in my engine and that Hyundai had agreed to pay for half of my engine replacement. My cost would be $3,200 plus they had already charged me $250.00 for a battery replacement. I feel this is Hyundais way of skirting around the warranty wording. The piston slap needs to be covered under their extended warranty. This is all related to their bad engines. There was a specific campaign focused on the p1326 code. I have been without my vehicle for 3 months now and I'm still making payments on an auto loan and paying insurance on a vehicle I can't use. The service manager told me that my car was still drivable, but it's NOT SAFE His exact words. Was notprovided a rental and told it's notcovered

NHTSA ODI 11566325

On [XXX], my wife and I were traveling westbound on [XXX] in the left hand lane approximately 30 miles from Lincoln, NE. I noticed blue smoke coming from my exhaust. I had to maneuver to avoid traffic in the right hand lane to exit. The engine and oil light came on about 30 yards from where we were able to stop safely. There was a large amount of oil on the ground under the vehicle. The vehicle was towed to the nearest dealership in Lincoln, NE. On [XXX], the service manager called and asked who last changed my oil. He explained that the oil plug "was left loose, upon diagnosis for the oil light being on, removing the underbody shield to drain the oil out to inspect it, the plug fell out as it was laying on the shield." Prior to the vehicle becoming disabled there was not any indication of the oil plug being lose such as oil residue on the car or leakage appearing in any driveway. The oil was last changed in early September with over 5000 miles driven. The oil change was completed by Walmart prior to the issuance of the TSB #[XXX] to replace the one time use crush type gasket and to confirm no old washer is stuck in the opening. The dealership has not submitted this for a warranty repair and claims Walmart is the responsible party. The TSB #[XXX] indicates that if engine damage occurs from not following the guidelines is subject to warranty chargeback. However, at the time of the oil change, TSB #[XXX] was not yet issued. It seems odd that there was no oil leakage or oil residue on the car prior to [XXX] that the oil plug would suddenly back out unless the oil plug/pan has some sort of defect. It may be reasonable to believe that Hyundai does not want to upload the warranty on engines that are known to have issues. We have submitted a claim to our insurance company to investigate if this was caused by hitting something on the road and have submitted a claim with Walmart. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11565322

I was just entering the expressway about 70 miles from my home, and the engine light came on in the vehicle. I could not accelerate to more than 52 mph even with the pedal to the floor. I had to drive home in the right-hand lane with my hazards on. This was the second time this happened within a month. The first time the dealer replaced the knock sensor after one week. It ran fine for 3 weeks and then the exact same thing happened in exactly the same place 70 miles from my home. My car has been in the shop for a week now, and they still don't know what the issue is, even though they are communicating with Hyundai. I see a pattern here after reading so many similar complaints from other people owning a Hyundai Tucson.

NHTSA ODI 11564490

I was driving on the highway. The engine began making a ticking noise that momentarily went away and then quickly got louder. I saw white smoke out of the back, pulled over, and then saw black smoke from the front. The check engine light only momentarily came out AFTER the white smoke was visible and I was actively pulling over. I ran out of the car, and turned to look only to see a fire under the engine bay. I did not have a collision nor hit anything on the road. Engine had full synthetic oil in it, and the oil was changed less than 10,000 miles precious. (Also checked oil level/condition the week before). The car went from driving fine, to entirely engulfed in flames within 2-4 minutes. Maine state police: case# 245000657 The vehicle has not been inspected by the insurance company yet. The report will be sent to me, and it is currently available for inspection upon request. I literally could have burned alive. My family could have been trapped. I was on the highway, LUCKILY I decided to pull over when I did. If I did not, within 40 seconds I would’ve been engulfed in flames. I have most certainly not been sleeping well in the least bit. The only warning sign happened 5-10 seconds before I was out of the vehicle.

NHTSA ODI 11563969

The contact owns a 2019 Hyundai Tucson. The contact stated while driving at approximately 40 MPH and slowing the vehicle, she observed that the vehicle in front was braking. The contact depressed the brake pedal and the pedal went to the floorboard as she was depressing it. The contact stated that she was pumping the brake pedal and she stated that the vehicle jerked and crashed into the rear end of the vehicle in front of her. No warning light was illuminated. The contact stated that her front end was damaged by the trailer hitch ball on the other vehicle. The contact stated that the hood was dented and the grill was broken, also there was damage to her headlights, and both lights were cracked. The damage to the other vehicle was minimal, only scratches. The contact's vehicle had to be towed. The contact stated she and the other driver were not injured. The police were on the scene and filed a report. The vehicle was towed to a collision center and was repaired. The manufacturer was informed of the failure. The failure mileage was approximately 38,000.

NHTSA ODI 11563826

Intermittent starting problem. Sometimes it won't start at all after as many as 12 attempts. Sometimes, it starts after several attempts. The weather does not seem to affect the problem. The EPB light has come on an stayed on after a non-starting episode but it goes off again too. It is not safe to drive because I get stranded. After it gets towed, it ends up starting at the mechanic's shop. No one, including and especially Hyundai will try to isolate and diagnose the issue. The issue is mentioned often on Hyundai owner's posts on internet forums but definite solutions are not mentioned.

NHTSA ODI 11561357

Dear sir, my 2019 Hyundai Tucson has been in and out of Milford Hyundai five times now they say it is in oil consumption problem they say they requested a new motor. This last time my grandson was in the car we were on the highway out of nowhere the car would not go over 30 miles an hour light was flashing. I got off the highway and called AAA that was eight days ago previous to that it has been checked and towed in three times and driven in while the light was flashing And not going over 30 miles an hour I have not heard from anyone in service . They have not gotten back to me to let me know what’s going on. Their customer service is awful. Please advise I am [XXX] they are taking advantage of my age and me being a woman who has duties and works and grandchildren and a mom I need a car. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11559052

My 2019 HyandI Tucson’s engine light came on, so I checked my engine oil and found it to be 2 quarts low on oil, so I added the missing oil and come to find out that 2 weeks ago I had added one quart of oil. That mean in 3 weeks I added 3 quarts of motor oil. I brought the car to our HuandI dealership where we have our vehicles serviced and explained to them to check for engine oil leaks and when I came back to pick up the car, they told me there was no sign of any oil leaks. So if there are no leaks, where is all this oil going? The engine runs just fine but it’s burning much to much oil. I mean you shouldn’t have to put one quart of oil every week, that’s just crazy.. I will have to bring the car back to the dealership in Centereach NY., and tell them to check again, this car is driven locally by my wife and she never drives over 55 MPH, even on the expressway. This car was never abused. I have a 2004 Chevy Venture with 195 thousand and I never put oil in it, I just have it replaced every 3 thousand miles, that’s it, I did notice that we aren’t the only ones that have this problem with this model car, that’s insane. I may just have to write a letter to the CEO, if they can’t find the problem. Sincerely, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11557144