I have been dealing with ongoing engine performance problems for over a year. My Tucson consumes oil at an abnormal rate, and I constantly have to refill it. There is also sluggish acceleration, and the Check Engine Light has stayed on despite multiple inspections and maintenance efforts. I-??ve seen hundreds of complaints about this exact issue from other Hyundai owners. I also found that an NHTSA investigation is ongoing, yet Hyundai continues to deny responsibility, often blaming the issue on the owner. I believe this is a safety concern and a manufacturer defect that needs to be addressed before more drivers experience full engine failure. Please investigate this further and include my VIN in any future action or recall.

- Greensboro, NC, USA

The reason of this complain is due to excessive oil consumption which now damaged my catalytic converter against Hyundai Motors America. The complained started 2021 where we noticed that the low oil engine light up after only 1500 miles from last oil change. We submitted the complained with dealer (Carlsbad and Escondido CA) and my car failed 3 consecutive oil consumption test and Hyundai performed an engine cleaning, claiming it was going to fix the problem. This happened when the vehicle was still under warranty. At the time they said that if this did not fix the problem, they were still going to fix the car since the issue happened under warranty. The engine cleaning DID NOT fixed the problem, my car no longer has warranty and my catalytic converter fails and makes the vehicle inoperable in highway (engine ceases to accelerate). We submitted a complain with Hyundai corporate and they denied fixing our car since the vehicle was no longer under warranty. I would like to ask for them to fix the engine and catalytic converter make the car operable again.

- San Marcos, CA, USA

Me and my daughter were headed back home from a family trip and we were stranded on the side of the road luckily we had family tailing us!! My engine light came on while we were still in the city in Savannah so we stopped by an autozone and changed the spark plugs so the engine light stopped blinking but when we got about 20 miles from home it stopped going we had to pull over it started smoking and it was really hot but the temperature had never moved we had it towed home!! I keep my maintenance up regularly on my car I had 2 mechanics check it out they both said the piston is breaking the spark plugs and it-??s something down in the motor that-??s doing it I should not have any motor issues at all with my car!! Especially when I do my part at keeping it up I was quoted 7,738 to fix my car which I don-??t have both mechanics said the engine in those cars are no good and it-??s been recalls on them just not my model it-??s not right I-??m out of a car and no way to work or no way for my kids to get around they have to ride in Lyfts and Ubers with strangers I feel like my car should be fixed because I did my part at keeping it up and I-??m still out of car and frustrated due to the companies negligence!!

- Macon, GA, USA

total engine failure. per dealership mechanic, random misfires on all cylinders with a dead miss on 4

- Sanford, NC, USA

The contact owns a 2016 Hyundai Tucson. The contact stated that while driving on the highway at 55 MPH, the vehicle lost automotive power and started vibrating abnormally. There were no warning lights illuminated. The contact pulled over and was able to restart the vehicle. The vehicle was taken to a local dealer where the vehicle was diagnosed and the contact was advised that the ignition coils, water pump, spark plugs, valve, oil filter, and the engine were faulty and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 113,000.

- Terre Haute, IN, USA

Engine has rod knock and low power due to rod bearing failure. There was never an illuminated oil light or message of any sort prior to failure. this vehicle has had oil changes regularly and never been an issue till now. With Hyundai not having a recall on this engine, and seeing many other reviews about this same issue it is a very dangerous issue leaving people stranded and loosing power in times where serious harm issues could occur and this issue is very costly being that the engine will have to be replaced. As a consumer taking care of the vehicle and still the engine failing due to the lack of integrity of Hyundai I believe Hyundai should step up and make it right and take care of the people who have spent there hard earned money on these cars and are now left in the dark.

- Sherwood, AR, USA

Was driving down busy road when engine suddenly knocked violently and shut off rendering car inoperable. Inspection revealed low oil, despite not being due for an oil change after and no visible/identifiable leaks. Investigation by mechanic resulted in being told that numerous Hyundai engines like this are having the same problems and need total engine replacements. The call only had 70,000. Dealership said they see one a week.

- Knoxville , TN, USA

The vehicle does not accelerate entering roadway, transmission replaced in 2022, catalytic convertor replaced in 2024. Several instances occurred when entering highway vehicle lost power and failed to merge safely, ultimately requiring hasty exit to roadside to avoid collision. The vehicle was purchased used but has been a safety risk since purchase date. Originally diagnosed transmission, then catalytic convertor, then knock control sensor. Engine oil is replaced more often than routine maintenance and refilled in between oil changes. Autonation Hyundai Mall of Georgia originally assisted with transmission replacement Feb 2022, catalytic convertor was replaced in Mar 2024. The vehicle has been parked for considerable time while insurance and car payments continue. In Feb 2025 my daughter was driving and was nearly rear ended when vehicle failed to accelerate, it has primarily parked since that time while exploring repairs. Car fails [XXX] enroute to game. Last quote to repair catalytic convertor was Total Automotive in Gainesville Ga. around 19 May 2025. I believe this vehicle poses a significant safety risk due to acceleration delays, all attempts to resolve have been unsuccessful. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

- Gainesville, GA, USA

Misfire, excessive oil consumption, engine knocking, loss of power/acceleration, gas smell, excessive gas consumption

- Dover, DE, USA

Was driving down busy city road when engine suddenly knocked violently and shut off rendering car inoperable as traffic had to go around my disabled vehicle. Inspection revealed low oil, despite filling 4 weeks prior after change and no visible/identifiable leaks. Investigation by mechanic resulted in being told that numerous Hyundai engines like this are having the same problems and need total engine replacements. They said that they "see this at least once a week in these Hyundai's and Kia's". There were no warning lights or anything prior to the event.

- Jacksonville, FL, USA

I-??ve been having ongoing issues with my 2016 Hyundai Tucson where the car struggles to accelerate, especially after stopping at red lights or pulling out into traffic. Sometimes, when I press the gas pedal, the car either hesitates badly or doesn-??t move at all. A few times it-??s completely stalled while trying to make turns or cross intersections, which has been really scary and dangerous. I did some research and found there was a known recall for this exact problem related to the Transmission Control Module software and the dual-clutch transmission. The symptoms described in the recall match mine perfectly, but when I checked my VIN, my vehicle isn-??t included. I haven-??t taken it to the dealer yet because I-??m worried I-??ll have to pay out of pocket for something that I believe is part of a known manufacturer issue.

- Forney, TX, USA

Excessive oil consumption

- Leitchfield, KY, USA

My 2016 tuscon has been giving be problems. I went to the dealership awhile back and told them that the oil has been burning having and that there's a perk when I start my car. They did an oil change and told me that I needed to lube the gears up first before running it. I assumed it was because my warranty was ending and because I was a girl, that was a quick go away problem. Well eastward today. I put oil in the engine at least once a week or more. The car is in the shop, and the machanics at pep boys are saying this is a reoccurring problem for this type of car. Also that all 2016 are made with the same engine pretty much so they should all be recalled. They quoted me 10 grand for a used engine. I'm taking it to hyundai, the pep boys told me that it's the same issues as the other recalls

- Orlando, FL, USA

The contact owns a 2016 Hyundai Tucson. The contact stated while driving at approximately 15 MPH, the vehicle stalled and shuddered. The check engine warning light was illuminated. The vehicle remained at the residence. A dealer was contacted and made the contact aware of an unknown NHTSA Campaign Number; however, the VIN was not included. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was approximately 95,000.

- Austin, TX, USA

Car started to not accelerate when pressing on gas pedal the RPMs would not raise or lower during this time it could be on a hill or on a flat surface at any type of stops whether it was a stop sign or a stoplight it didn't matter how much gas you gave the car it would not move and then it would start bouncing what I would describe as hopping the car would start jerking constantly until you released off the gas and gave it more gas until it would finally go this was happening on highways or on city streets while driving down a highway my engine made a funky sound and it turns out my engine rods blue I went to the dealership they told me my car was safe to drive I continued driving my car until it started not shifting this was 3 days after going to the dealership. I called the dealership back told them I was bringing my car to them due to the issues it was having. After several weeks the dealership told me my car needed a brand new engine and transmission due to engine rods breaking transmission went out and metal in the oil filter. Not even 6 months later my car is have the exact same issues and my dealership is not want to do anything to fix my car even with having a warranty to cover everything they fixed.

- Bloomington , IN, USA

The engine sometimes stalls and does not accelerate in relation to the pressure applied to the gas pedal. This has caused me scenarios where I am waiting to make a left turn and putter into the lane of opposing traffic, instead of accelerating through the turn. Another symptom of the engine is burning engine oil excessively. I am not aware if the issues are related or not.

- Norfolk, VA, USA

Excessive oil consumption which has then in turned caused my catalytic converter to go out.

- Mobile, AL, USA

Fuel injectors no warning-??went to get breaks checked, while they were checking them the engine light turned on after that they couldn-??t get my car to start again.

- Coppell, TX, USA

car is in limp mode, will not accelerate.Oil consultant over a few years.Dealership has requested new engine twice and denied by Hyundai USA.i have to put flashers on just to get on highway so im not killed.I will drive down the street and back and my engine will be extremely hot for hours.I am limited to my hometown only.I can not go out of my hometown due to heat of engine and blowing hoses and water pumps which has happened.This car is a danger and I am in financial burden to high repairs and excuses from dealerships.i have spent over 16,000 dollars and 3 catalyc converters later due to clogging, in result to oul consumption.This car is a lemon and has ruined my life for the last 3/4 years.lots of stress and financial expenses only to have the same problem

- Alameda , CA, USA

Engine is burning oil and has been for sometime. Won-??t Accelerate and sputters Tie rods are worn out. This car is a lemon and dangerous to drive

- Blacksburg , SC, USA