2017 Hyundai Santa Fe Sport

We had the oil changed like always and shortly after I was checking the oil and it was not even on the dipstick so I added some and checked for leaks anywhere did not see any than we had problems with it barely accelerating so took it to dealership the performed the anti knock sensor upgrade for free and when I asked about the oil consumption they said that I needed to do a engine clean and all kinds of stuff came to like $400 so I had them do it because I can not have my wife stranded somewhere after all that they changed the oil again that was another $80 they said to bring it back at 1000 miles for them to check brought it back at 700 miles already used 1.5 qts they said engine is junk but cannot get anything done about because it had at the time 120000 miles

The vehicle’s engine is experiencing excessive internal oil consumption that poses a serious safety risk while driving. After a routine oil change performed by an authorized Hyundai dealer, the engine oil warning light illuminated within about 1,700 miles. Upon inspection by another Hyundai service center, technicians confirmed that the engine was burning oil abnormally and was three quarts low, with no external leaks. This issue was documented in the dealer’s repair order, which states “vehicle is burning excessive oil.” The problem has been reproduced and confirmed by a Hyundai dealer. The vehicle is equipped with the Theta II 2.4L GDI engine, which is already covered under Hyundai’s KSDS (Knock Sensor Detection System) extended engine warranty due to known internal mechanical defects such as bearing wear and oil consumption. Despite this, the manufacturer has declined to replace the engine. The excessive oil burning occurs rapidly and triggers the low-oil warning light while the vehicle is in motion, creating a risk of engine seizure and sudden loss of power that could lead to a crash. The defect remains unresolved. Warning lights for low oil level appeared multiple times beginning in 2025, shortly after the KSDS update and knock-sensor replacement.

The light for the passenger airbag has been on for years. I have taken it in, and the only thing the service department determined is that there was a water bottle under the seat. I was rear-ended into another vehicle, and the airbag did not deploy. The engine burns the oil from an oil change in approximately two weeks. I add a quart of oil every two weeks. If the engine seizes while driving due to this condition, I could be injured in an accident.

Engine is experiencing excessive oil consumption. Engine in question is a Theta II 2.4 GDI. Losing a qt every 400-500 miles. The car has less than 75,000 miles on it. The vehicle has been religiously maintained, oil changes every 5,000 miles or less. However because we are the second owners, even though it was purchased in 2020 when it had less than 30,000 miles, the warranty does not apply. The engine type has several manufacturer defects. Hyundai is using the technicality of a non-transferable warranty to get out of the fact that they knowingly put a defective engine in vehicles. By the time the oil consumption issue is apparent, it is too late, and you need a full unit replacement. I was quoted $9,000 - $10,500 by two Hyundai dealerships to replace the engine. I've spoken to non-Hyundai shops and the only way to truly correct the issue is to replace the engine with a remanned engine since the actual engines are manufactured poorly from go, so even a new one could be defective. There are million of these engines across several KIA and Hyundai vehicles. They cause undue burden to consumers. Hyundai and Kia do not stand by their product and consumers are being hurt. Instead of having an asset I thought was worth $10,000 an I could drive for several years and tens of thousands, if not one hundred thousand plus, more miles, I have a vehicle that is a ticking time bomb that would cost as much to fully fix the problem as it is worth. A simple google for Kia Optima, Kia Sorento, Kia Sportage, Hyundai Sante Fe, Hyundai Sante Fe Sport, Hyundai Sonata or Hyundai Tucson + Theta II 2.4 GDI will yield more than enough results to show how prevalent the engine failure + oil consumption issue is. If left unfixed the engine will consume too much oil and seize, or lead to other problems with vehicle rendering unsafe to drive.

My car has a GDI motor and it is the most diabolical engine. I get an oil change REGULARY according to my cars need. Between oil changes, i have to constantly add oil. About every week i have to add about 2 quarts of oil. I have confirmed with my mechanic that i have NO leaks, no faulty gaskets or injectors. This car has caused me SO many problems. I should not have to constantly add oil to my car weekly just to get to my next oil change. There needs to be some sort of recall or extended warranty. My mechanic has stated that SEVERAL of his customers have had faulty GDI motors. My car has 118,000 miles on it and very well taken care of.

On [XXX, I was driving on the interstate when my engine seized and the car lost all power, leaving me stranded on the side of the road on a busy exit at night. This was very dangerous to myself and others. I purchased this car in July of 2023 with 69,000 miles in good condition. I immediately made an appointment to take care of the recalls and updates to this car, which were performed February 2024 due to this being the first available appointment. Also, at my first oil change (3,000 miles after the previous oil change) I was told by the mechanic that there was absolutely no oil in my car. Since then I have had to put SEVERAL quarts of oil in between each oil change, costing me hundreds of dollars. Then June of 2024, the P1326 code flashed on my car and it went into limp mode also while I was driving on a busy street, putting myself and others in danger. I took it to the dealership and was advised to continue driving it and there was nothing they can do until my engine fails. I also brought up the oil consumption issue and was told that even if I did an oil consumption test (at my cost), there was nothing they could do. I was advised by my service advisor not to do a consumption test. I took his advice and continued to drive my car, adding countless quarts of oil weekly to my car. Fast forward to September 2024, when my engine light came on due to misfires in cylinder 3&4 and I took it to a local mechanic due to the incredibly long wait for an appointment at Hyundai. I was told all 4 spark plugs were oil fouled due to excessive oil consumption. This happened again July of 2025. My mechanic advised me that there was nothing to do about it, but that this would continue to happen due to the oil consumption issue. Now Hyundai is refusing to take responsibility for this engine that has had documented issues resulting in class action lawsuits and safety issues for myself and others and refusing any financial assistance. No warning lamps were on before incident. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATIO

On [XXX], around [XXX] I was driving my car on [XXX] and I suddenly experienced "Check Engine Flashing" and engine misfiring. I was driving ~70-75 mph in the left lane. I immediately turned ON the Hazard lights and somehow manage to get to the right lane and safely stopped the car in open space on the side. This could have resulted in a very serious accident as I had my whole family in the car with me. Hyundai Motor Company must be held accountable for this type of engine quality issue. My car has 119580 miles. I had always car maintenance done at Hyundai Dealerships to make sure that it is maintained as per the company recommended. The Catalytic converter in my car was changed by the Hyundai Dealership (Key Hyundai Manchester, CT) at approximately 96000 miles as it had gone bad in April of 2024. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

At first I noticed that there’s a strong smell of oil when I am driving it. The engine was consuming a large amount of oil so much so that I have to keep an extra bottle of oil in my car. I will be driving and oil light shows up and I have had an oil change not just a week prior. I had an independent mechanic to come check it and he said a lot of oil is leaking out into the engine because, I never see any oil on the ground. Then finally the check engine light is on, the steering is shaking heavily and I have stopped driving it for my safety and that of others on the road.

Check engine light came on to check the oil and I had recently had an oil change and all of a sudden within a week or two I needed to fill my oil back up and it's gone through two quarts of oil since my oil change this has been going on for 2 years I did not know there was some place like this where I could follow a complaint. I constantly put oil in my car because my car is constantly low on oil and there is no evidence of the oil leaking onto the ground whatsoever. I don't know where the oil is going to but it's not leaking on the ground and there's just been a constant issue for the past 2-3 years