The contact owns a 2019 Hyundai Tucson. The contact stated that upon starting the vehicle, he observed unusual RPM fluctuations and vibrations during idle, after which the check engine warning light illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the catalytic converter. The vehicle was not repaired, and the contact continued to drive the vehicle. The vehicle was later taken to an independent mechanic, who determined that there was a misfire in cylinder #4. The independent mechanic informed the contact that the failure was previously misdiagnosed, resulting in damages to the engine and that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure but provided no assistance. The failure mileage was 100,000.

- Woodsville, NH, USA

I was driving approx 55mph on [XXX] in my 2019 hyundai tucson when the check engine light came on and the engine started to stall. I felt the acceleration dying down in the middle of busy highway traffic. Gray smoke started coming from the hood cracks. I luckily was in the right lane already, so when I could I veered off to the shoulder and the car quit. The smoke was increasing badly. Ppl from the highway were yelling its going to blow up get away from it! I was so scared. I grabbed my phone and keys and ran as far as I could while dialing 911. Within a couple minutes flames were swallowing the entire engine and front of the car. I am furious. I researched online and hyundai has had many similar incidents with this car and other with this engine ! These need to be banned and taken off the road before they kill anyone else. Ppl have been injured and killed from similar situations just like mine. I thank God I made it out of this horrific situation alive. But now I have no car and am at risk of losing my job and then housing. I thought I would have this car for years. Now I'm traumatized and without transportation. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- Kings Mountain, NC, USA

Engine failure Needed to be replaced just over 52,000 miles

- Manchester, NH, USA

Engine failure. Car suddenly stop and engine light lit on.

- Santa Clara , CA, USA

On 05/11/2024, I accelerated onto the freeway at which point my vehicle would no longer go past 50 mph with the pedal to the floor. I had my two small children in the car at the time. It was dangerous as cars around us were going 65+ mph. The check engine light started blinking when this was occurring. Prior to that the check engine light had been on because the dealership claimed they didn-??t know why it was triggering and that they have to take my engine out and replace it just to explore the issue. I don-??t have the money for that. It has a knocking sound, a pungent fuel smell and it still won-??t accelerate. I only have 85k miles on the car.

- Beaverton, OR, USA

I was driving on the highway when my vehicle started decelerating and shutting down completely. I ended up safely pulling over because it could-??ve been a serious accident and called FHP they tested my car code p1326 came up I had it towed to the dealership where they assured me I had the extended warranty and that the car should be covered and I don-??t have to pay out of pocket. What the dealership told me would take 2 days has now been almost a month and still counting. I-??ve had 3 denials for engine replacement due to being outside of warranty with Hyundai even though I have the extended warranty. The dealership has sent pictures and spoke with my case manager at Hyundai to confirm that the engine failure was due to the bent connecting rod bearing that is again covered under warranty. They came back and said other codes populated showing the cause was not the rod bearing but that has to be false. One of the other codes was regarding coolant and I-??ve never had any issues with my car overheating or anything prior to my engine shutting down on the highway. I never had any flashing lights or warning signals on my dashboard. This was very unexpected and I refuse to pay for a repair that I didn-??t cause especially when this is consistent with Hyundai and their engines. This is a 2019 I should not have any issues. I need a solution quick

- Tampa, FL, USA

The contact owns a 2019 Hyundai Tucson. The contact stated while driving approximately 40-?"45 MPH, the vehicle failed to accelerate as needed. The vehicle failed to accelerate about 35 MPH. The vehicle went into LIMP/SAFE Mode. The check engine warning light was blinking. The vehicle was towed to an independent mechanic and the contact was informed that the failure was due to metal shavings being in the oil. The contact called the local dealer and was informed that there was no recall coverage on the vehicle. The dealer informed the contact about diagnostic testing the vehicle. The vehicle was not diagnosed or repaired. The manufacturer was contacted and opened a case. The contact was informed that the vehicle was not covered under recall. The contact related the failure to NHTSA Campaign Number: 20V543000 (Service Brakes, Hydraulic). The failure mileage was approximately 92,000.

- Goose Creek, SC, USA

The components that failed are the engine and transmission and parts associated with the functionality of these parts. It is currently in the shop but will be available for inspection upon request once repairs are complete. My safety and others were put at risk when these malfunctions occurred (driving incredibly slow on the highway could cause an accident, accelerator malfunctioning that might break, broken down late at night hours from home, parts catching fire from leaking oil, etc.). The problems have been acknowledged by my warranty company and the two repair shops that have serviced it. My car was inspected by Geico Insurance Company after I got rear-ended and needed to file a claim, however, the inspection was not specifically on my engine/transmission. The warning dash lights didn-??t seem to come on until it was too late, especially during the transmission issue. I was driving around for days leading up to this issue thinking it was acting weird because it was due for an oil change but when I got one and nothing improved, I knew something was wrong. The check engine light did not come on until the car started to actively shut down and not move when I pressed the gas. The full detailed complaint is attached and receipts for repairs are available upon request. Attached is an overview of parts and pricing from the warranty company for the two claims.

- Daytona Beach, FL, USA

I have to add oil to my every 2 days.. there is no leaks and I get frequent oil changes. Also acceleration to meet state limits my Rpm go super high not wanting to shift. Again no leaks and have checked so there is good transmission fluid in

- Conneaut, OH, USA

Check engine light comes on it has come more then 5 times. I take it to the dealership. They tell me they are doing an oil consumption test this makes the 5th one. Lane assist when trying to move away from a vehicle it pulls back almost getting you into an accident.

- Joliet, IL, USA

I was having oil consumptions issues which meant I had to put a quart of oil in my car every 500 miles I drove. Then I was driving when my check engine light started flashing and now my car can't drive without shaking a lot. I can't drive it anymore.

- Eastham , MA, USA

I believe that this car is a lemon. Ever since we bought it we have problems with the engine not performing right. I have got the engine system cleaned multiple times one at the dealership and one at Valvoline Oil Change facility. The engine still didn't run smooth. I would always get the oil changed on time and the vehicle has never been in a accident. Now just yesterday the vehicle while driving on the highway just stalled and wouldn't accelerate past 60mph. Now the check engine light is blinking and all of the lights on the dash are on. Also lately sometimes the forward collision lights will come on and other warning lights and sometimes they wont. Another light that intermittently comes on are the auto hold and epb light and this has been happening since we bought the vehicle. I have taken into Hyundai and they basically were like yea sometimes that happens. I have not gotten the new check engine light checked but I am sure that it is something serious because the car won't accelerate past 60mph. I have read on other discussions that there are many problems with Hyundai engines and believe that I am victim to very poor quality manufacturing in this engine. I also have a 2013 Toyota Camry with 180,000 miles and haven't had one problem with it. This car is a lemon and would like to have some help with this please. I have also made a complaint with Hyundai under their drive train warranty.

- Pompano Beach, FL, USA

Almost got killed!!! This car is dangerous!!! I feel lucky I can still write to you. Hyundai 2019 Tucson (TL) 2.0L has been plagued by a recall and related known defects that create dangerous and life-threatening situations on the highways 3 times in 10 months for us!!! Vehicle year, make & model: Hyundai 2019 Tucson (TL) 2.0L car Approximate mileage: Current ~37,000 How many repairs visits to the dealer? total 4 (First time was Hyundai recall, 3 times Check engineer light flash on interstate highway and the car went to limp mode and reduced speed drastically) A short description of the problem: Car has been plagued by a recall and related known defects that create dangerous and life-threatening situations on highway. 1). Recall on [XXX] (with only 19395 miles on it); 2). [XXX]. The car only had 22036 miles on it, on [XXX] near San Francisco; 3). [XXX] while driving on [XXX] north of Portland; 4). [XXX] during the afternoon pre rush hour traffic before 3:00 PM on highway [XXX] near Tigard (currently undergoing road construction with no shoulder, and many cars driving at high speed) Almost hit by a car behind me. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- Kalama, WA, USA

On March 13, 2023 while I was driving at about 70 mph on PA route 66, the engine suddenly stalled and fortunately, I was able to move to the emergence lane. I turned off the power and restarted the engine, and it worked. This is the third time that I have experienced the same issue, with other two on I-376. I also couldn't start the engine after refilling gas, so I had to wait for about 15 minutes. I took the car to a dealership but the diagnosis did not show any problem. There was not error code at all. On the internet, several possibilities were mentioned, but I do not have any idea about the root cause.

- Murrysville, PA, USA

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)

- Chantilly, VA, USA

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.

- Bellville, OH, USA

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!

- West Hartford, CT, USA

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, 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)

- Chicago, IL, USA

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)

- Northfield Falls, VT, USA

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)

- Northfield Falls, VT, USA