Driving into work on Friday June 2, 2023 my engine started making a noise that got progressively worse as I got to work. The engine was knocking loudly and I was not comfortable driving it home. I called AAA and had the vehicle towed to a Hyundai Dealership. The car has 77,780 on it. I bought it used in 2019. The engine is no good. No lights no indication of any problems just that horrible noise. I was told because I bought it used the powertrain warranty wouldn't apply. I did buy an extended warranty and am now waiting to see if they will cover the engine. I am now up to $300 in "diagnostic" fees. I knew the engine was gone I could have saved my money but of course need to now jump through hoops to see if this will be covered. Not holding my breath I am sure there will be some fine print in which is will be denied. They said that it would cost $15000 to put in a new engine. I owe $9000 on the car. UNBELIEVABLE!!!

- Norton , MA, USA

I have had multiple instances where the car will not accelerate and can shutter or lurch when I press on the gas. I recently had an incident where I was turning left and the car lurched into traffic and almost stalled as I was trying to turn and avoid the oncoming traffic. This has happened before and is very unsafe. Fortunately, the oncoming traffic was able to stop prior to hitting my car. This apparently is a known issue with this model and the manufacturer refuses to address the issue for this year. I am at the point where I either need them to fix it or I will have to get rid of it because it is very dangerous.

- Nashville, TN, USA

My 2017 Hyundai Tucson (91,000 miles) suddenly started having issues shifting into gear. We pulled into traffic and were unable to accelerate for several seconds which created a hazard for both passengers and oncoming vehicles. We took to automotive shop in Clarksville, IN. It was determined that vehicle would not shift into first, third, or fifth gear. The shop informed us this was a common defect with this Make and Model vehicle. We were also informed that only Hyundai Dealerships could service because of specific software and calibration requirements for this specific transmission.

- New Albany, IN, USA

My Hyundai Tucson beginning at 65,000 miles Began consuming more oil than normal. There was a transfer of title through a family member with the vehicle and was not aware that in that case the cars 100,000 mile warranty is no longer valid. It is then reduced to half that or 60,000, one of the 2. I brought the fact up to the service rep at Hyundai that it was going through a lot of oil and they stated that it was normal with multiple cars that Hyundai produced. The oil was burning off and no detection of leak and no check engine light has ever came on. It never over heated. I then brought this up to Hyundai at about 92,000 miles and thats when I learned about the warranty being voided because of the transfer. The car at the time is running just fine but still burning oil and still nothing from the dealership about any issues because the check engine light never came on. Until I was going home one day and the car began to stutter and losing power. It was struggling to produce power and I finally pulled over to a safe spot. It did not wanna start after that. I had it towed to Hyundai service center and they later told me that my engine needed a fuel system flush. They did that and I drove it just fine for about a month. Then it did the same thing only this time the check engine light finally came on. The code was giving them a misfire of 2 cylinders and was not holding enough pressure. They then said my motor was gonna need to be replaced and that threw me off. I feel like that should have been detected much earlier but without any sign of overheating or engine alarms it just kept running up until that point of the motor no longer running. I feel that if I were to get some kind of check engine light earlier in then it is possibly that this could have been avoided. I feel like this issue remains and is well overlooked to many of their vehicles. I just need a new engine not looking for money or anything else, just a car that is reliable and safe.

- San Diego, CA, USA

March 6, 2023 the check engine came on and I came out of pocket $900 for new Ignition coils.. A month later, the engine starts knocking and now they're saying that the engine is completely bad and would have to replace it. The engine burned alot of oil in that time. I was getting oil changes before the oil change mileage mark. I'm stuck at this moment because there is no recall for the engine for my vin.

- Ellenwood, GA, USA

I believe the transmission is to blame as many others have stated. Our Tucson, without notice, quickly accelerates which is sometimes a scary situation. This defect can easily cause an accident. It happens often. It also sometimes lags when pushing on the gas and then accelerates as if I was in "sport" mode, when in fact I'm not. Hyundai has told me that there's nothing wrong with the vehicle so they won't look at it. That's obviously false as everyone knows now it's defective. No lights or warning devices activated.

- Boise, ID, USA

The car has been having numerous acceleration issues, it can take upwards of 30secs to actually start moving from a light or stop sign. It also seems to be shifting late and/or slipping. This had caused me to be stuck at a light in the middle of the road and almost hit by another car. Also, my engine completely failed within 5mins, I was driving and the check engine light came on, then the oil light, then the engine started smoking, and then the car died in the middle of the road. The engine completely seized in 5mins. I had all oil changes done and there was never an oil light on saying it was low. When the dealer checked the engine there was no oil, probably from the rod breaking out. There. Was some if the same issues with the same year that got recalled and fixed for free. I got quoted $16,000 from the dealer. That's more than I owe and what the car is worth. I'm stuck with no vehicle and don't know what to do.

- Port Richey, FL, USA

I am the sole owner of a 2017 Hyundai Tucson Limited, (AWD) with the 1.6L engine, 7 dual clutch transmission, with 46,000 miles as of today Thursday, February 23, 2023. Currently, I am experiencing problems with the engine/transmission stuttering and vibrating, the gears slipping, and with the inability to accelerate when merging into oncoming traffic. In addition, what frightens me the most is when I am applying the gas when driving and the gears stick causing a brief halt in forward motion then, suddenly progressing forward with a quick burst of speed. On many occasions, I have shared my concerns with the dealership from whom I purchased my vehicle from Hyundai of Chantilly, located at 14848 Stonecroft Centre Court, Chantilly, VA 20151. I have been told that the dual clutch transmissions are trash in so many words and I have been quoted a price of $2000 to have the transmission replaced. I am at my wit's end and unsure of my rights and to whom should be held accountable. Therefore, I am writing NHTSA for assistance.

- Washington, DC, USA

Powertrain: Vehicle losses power especially going up inclines or hills. This happened before and I spent over 4500 dollars on repair of a catalytic convertor that failed. This was Late may of 2022. Now the car is back at a Hyundai dealership because the Catalytic Convertor has failed again it is Feb 2023. The car has extreme oil consumption which is one of the causes of catalytic convertor failures. The car in November of 2022 had a loss of power again but this time coils failed. Had all three coils and spark plugs replaced. The certified mechanic shop gave me the spark plugs and it was if they had a black felt on the tip of them. The mechanic said this was a sign of high oil consumption. High oil consumption is also a cause of coils and spark plugs failing prematurely. I have records to show how much oil I have bought and it is about 3 quarts every 1-2 months depending on how much I drive. This is extremely high and a sign of a faulty engine. It puts me in danger of being rear ended in traffic or on an open highway because it losses power. I use my car for work and sometimes that work takes me to small country towns. My work sometimes mean I get back when it is dark or get up when to get to work when it is dark. A car failure on a dark country road is unsafe. Yes a Hyundai dealearship in Decatur and Lubbock TX as well as a certified mechanic in Keller Texas can attest to no warning lights or codes and the car has high oil consumption. Inspected by two different hyundai dealarship service repair locations NO warning lights, no check engine lights, nothing to give notice of a problem about to occur. I have tried to deal with Hyundai but they refuse to accept that the issues are due to a bad manufactured engine. However all the signs point to that is the problem. Lastly the check brake light comes on but mechanics can never find a problem. So they replace the bulb but it just keeps happening. It will come on, stay on for a day, then go off. Just periodic

- Fort Worth, TX, USA

On acceleration, the RPM's rev but transmission fails to respond. Slow to accelerate on lower speed end.

- Dewey, OK, USA

I have had my 2017 1.8L eco Hyundai Tucscon for 3 years now and recently it's been giving me signs of problems that are great concerns for safety, as well-known for this models; it only 62091 miles as of the day of this complaint. On Jan 15. 2023, I noticed that each time I start the car, it takes a little bit longer, then you hear a rattle sound and shaking of the engine block, then it start. Or the engine would suddenly slip, followed by a brief rattle sound while driving. I took it in for service to Manly Hyundai in Santa Rosa on Jan 27, 2023, but the mechanics there told me that they could not find where the problems are coming from, and that I would need to wait for an engine light to come on, as any diagnostic at this point maybe unnecessary and costly. Had I known that the 2017 Tucson had so many issues and recalls, or engine defects, specially the slipping or shaking on acceleration from idle, I would never put my money on a commuter like that. I AM STILL WORRIED FOR THE EUGINE NOT TO BLOW UP AS PER PREVIOUS INCIDENTS WITH THIS MODEL. Common issues: The18.0-liter eco 4-cylinder engines, which may have defective rod bearings. The bearings may wear prematurely. This can cause the engine to stall during operation. In extreme cases, a damaged connecting rod can puncture the engine block and cause the engine to leak oil onto hot components, leading to a fire. Please do something.

- Novato, CA, USA

My car shudders upon accelerating at low speeds and hesitated to respond to the gas pedal at low speeds. This shows itself when taking left hand turns where the car will stall for a second or two while turning before the car finally pops and the acceleration kicks in. The transmission feels unresponsive. This has been happening since my car had 5k miles on it but is worse now that it has 35k miles on it. The dealer says this is a characteristic of the dual clutch transmission, and that it-€™s normal, but it feels extremely unsafe and not normal for an automatic transmission.

- Englewood, CO, USA

2022-1-09 Left the house to run errands and noticed the car seemed sluggish when I stepped on the gas to accelerate. I'd actually felt like this may have been happening for some time but it is a "Sport" and it always felt a little funky when you accelerrated. It was blistery cold so my initial thought was I left too quickly and the vehicle maybe needed time to warm up. It felt like the engine didn't either seem to be shifting to a higher gear, or getting enough power to accelerate which was very concerning as this happened as I pulled out onto a busier road, yet couldn't accelerate. I made it to my first stop but called my husband to express concern something seems off with the vehicle. I told him I would likely skip my errands and come home for him to take a look. After my stop, I started the Tucson up to head home - and now the check engine light came on (solid)! Apparently flashing check engine is more serious? I was able to make the drive home to unload groceries but the whole ride home I couldn't accelerate properly so it was a scary drive home, I drove slowly on backroads and used my flashers to get home safely. We immediately called the Hyundai dealer near us which closed. Called four times the next am as we needed whatever was going on fixed quickly. Once the vehicle was at the dealer, we learned it had complete transmission failure. Thankfully it appears this is under warranty. It is STILL at the dealer as it needed to get an inspector to come out to confirm it was transmission failure (which has now been confirmed 10 days later).

- Lakeville, MN, USA

Transmission wants to studder or jump around violently during take off; loss of acceleration at low speeds. Normally have to stop and start again or floor the accelerator to make the vehicle proceed.

- Albany, GA, USA

The contact owns a 2017 Hyundai Tucson. The contact stated that since purchasing the vehicle, the vehicle shuddered while driving from a complete stop. There was no warning light illuminated. Additionally, the contact stated that upon driving from a complete stop at a traffic light, the accelerator pedal was depressed, and the vehicle shuddered, jerked, and lunged forward, almost causing the contact to crash into the vehicle in front of her. There was no warning light illuminated. The contact stated that the failure had been reoccurring while driving from a complete stop. The vehicle was taken to an independent mechanic who was unable to duplicate the failure. The dealer and the manufacturer were not notified of the failure. The vehicle was not diagnosed or repaired. The failure mileage was 21,000.

- Longview, TX, USA

The components that are malfunctioning are the gas nozzle entrance, and the dual clutch transmission. It-€™s available for inspection, and is being inspected currently at a dealership. My safety-€™s been put at risk to combustion when filling gas, resulting in risks of fire and/or explosion. The dual clutch affects my, and others, safety with major hesitation, jerking, and risk of stalling at any given time. The problem with sparking at the gas nozzle entrance has been reproduced and recorded by the dealership server al times. The dual clutch was diagnosed as faulty and replaced twice, both within a two and a half year span (from which I was told it will continually happened and need to be replaced down the road). The issues have been inspected by dealership, KenGraff Hyundai Surprise, Arizona 85388. There were absolutely no warning lamps, messages, and/or symptoms of the problems.

- Phoenix, AZ, USA

vehicle has failed multiple times while driving in traffic forcing erratic, sudden and unexpected moves across traffic to get to side of road while trying to avoid accident. 1) ignition coil failure/cylinder misfire 3 occasions causing violent shaking suddenly while driving. Replaced all three times. $2,300 expense 2) transmission failure/slipping and then lunging within traffic and now undrivable. $7,200 quote from dealer to fix!

- Plymouth, MA, USA

Piston rods blew through the motor. Needing to replace engine at 103,000 miles. Transmission slips and you hear a sputter when accelerating. Car jerks with driving and coming to a complete stop. Fails to accelerate and change gears when driving. Has no reverse.

- Tucson, AZ, USA

The dual clutch intermittently shakes and hesitates while accelerating from a stop. Also, sometimes it's sluggish while driving and feels like it might stall. This is dangerous because if I needed to speed up to avoid a crash, I'm afraid the car may hesitate and be involved in an accident. There are recalls for other Hyundais with the dual clutch transmission for this same problem. Available for inspection upon request. Didn't show this to my dealer. No warning lamps. The engine has always intermittently shook and hesitated when accelerating from a stop. The feeling that the vehicle is sluggish and that it may stall AFTER accelerating while stepping on the gas pedal started recently around 19,300 miles on the odometer. I also reported this issue to Hyundai.

- Aurora, CO, USA

Vehicle hesitates and vibrates when accelerating from a full stop. It happens on every start since purchasing the vehicle in 2020.

- Snellville, GA, USA