2020 Hyundai Santa Fe Engine

Oil drain plug seal leaking, can’t tighten the bolt with the required torque setting to keep it from leaking.

Our vehicle has encountered a catastrophic engine failure (burnt valves) due to a known and ongoing issue with the piston rings install in this engine.

HI! Leaking valve cover gasket which damages spark plugs, ignition coils and fuel injector. Defective High Pressure Fuel Pump and fuel injector causing fuel to spray into engine and into engine oil. Large amount of fuel found in oil pan when oil changed. Complaint filed with Hyuandia, no response at this time. Thank you, [XXX] . INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Excessive oil burn off. Oil is getting into the cylinder, causing scorching. This causing engine failure.

After 110,000, the engine started using oil and it began to knock. According to the history of these engines, it will lead to engine failure. They have a record of being a lemon engine and there is not a engine of this type that this does not happen. The engine needs to recalled and replaced, They are the Theda II GDI series of 2.0L and 2.4L four-cylinder engines from Hyundai/Kia.

2020 Hyundai SantaFe Limited AWD ... burning excessive oil. This only was noticed because the low oil light intermittently started coming on, and has only started happening in the last few months. low oil indicator flashing - 4QT low, went for an immediate oil change 78788 miles - oil changed 80252 miles - low oil - added 1QT 80628 miles - low oil - added 1QT 81376 miles - oil changed 81999 miles - low oil - added 1QT 82755 miles - low oil - added 2QT These are the most recent events since we started logging it.

My engine has been sucking up oil since the day I bought it. Once I hit 100k miles it started sucking up oil faster than the recommended oil changes. I was driving home two weeks ago. I went to get in a major highway and she would not go past 35 mph. I went to trade it in and was told it needs a new engine and a new turbo. This is a known problem and Hyundai will not fix it. This car is not even 4 years old. I got it in April 2021

While driving the oil light started flashing then the check engine light started flashing with no prior warning. The car was checked, it had burnt up the oil in it and then I put 3 quarts in it. It was 200 miles from needing an oil change. The engine had little to no power once oil was put in it. It died on the side of a highway. It had to be towed to a mechanic. There was no prior warning to this incident that the oil was low. This car put me and my child at risk of car accidents when on the road trying to get home with traffic behind me because the car wouldn't accelerate. I called Hyundai and they said they wouldn't help with no recall or extended warranty on the car.

On [XXX}, my 2020 Hyundai Santa Fe SEL 2.0T (VIN: [XXX] ) experienced sudden complete engine failure accompanied by a strong burning smell. The vehicle would not start or turn over, stranding me and creating a safety hazard. The burning smell indicated potential fire risk. This appears to be related to the known Theta II engine defect that has caused multiple recalls and engine fires in Hyundai vehicles. Despite dealer confirmation that the engine was clean and well-maintained with no customer fault, Hyundai has denied warranty coverage. The sudden failure pattern with burning odor represents a serious safety defect that could endanger drivers and passengers. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I AM HAVING TO GET AN OIL CHANGE EVERY MONTH FOR THE PAST 6 MONTHS. MY ENGINE LIGHTS COMES ON EVERY NOW AND THEN, AND MY OIL LIGHTS COMES ON EVERY MONTH. SOMETHING IS WRONG WITH THE 2020 HYUNDAI SANTA FE'S AND THE COMPLAINTS ARE BEING IGNORED. I HAVE NEVER MISSED MAINTENACE ON MY CAR SINCE I PURCHASED IT IN 2020 BRAND NEW. EVEN THE PLACES I HAVE TAKEN MY CAR TO GET MY OIL CHANGES SAID THEY HAVE HEARD OF THE SAME ISSUES WITH OTHERS THAT HAVE THE SAME YEAR AND MAKE OF CAR. I SPENDS AT LEAST 45-55 DOLLARS A MONTH JUST FOR OIL CHANGES AND SOMETIMES 16.00 IN BETWEEN THE CHANGES BECAUSE THE LIGHT WILL COME ON BEFORE IT'S TIME FOR THE MONTHLY CHANGE. PLEASE HELP!!!

First noticed during the last 3 months that the car seemed under powered during acceleration. Then had 2 incidents where the engine shut off when stopped at intersection to turn. Then on [XXX] I noticed while driving, the oil warning light flashed but did not remain on. Then again it flashed 1 time and did not remain lit. Upon checking the oil I found it to be 3 1/2 quarts low. Oil had been changed at the dealership at 90000 miles and the mileage that day was 93340 miles. No leaks under the car where I park at home or work. Have had all our regular oil changes at the dealership every 5000 miles. No prior oil consumption noted. We have contacted the dealership. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I recently inquired about this vehicle that was for sale at Grayson Hyundai. It's has a KSDS that needs service immediately and the pre-owned manager is not willing to do that; in fact he's refusing because "They aren't Hyundai" when that is a lie and his dealership can definitely do that service. Safety is a huge concern because the engine could potentially catch on fire or worse. Nothing has been inspected or replaced or fixed at this dealership. I did not go to the dealership myself so I don't know what lights could be on. But with the recalls and this KSDS campaign service needing to be done I don't think there is anything else wrong with the vehicle.

Excessive oil consumption. Mechanic who changed oil said oil level was too low and he could find no leaks. He said this is a known Hyundai problem. The dealer acknowledged this. There was no warning light saying the oil was low. It was discovered during a routine oil change.

The vehicle has been taken in for routine oil changes and other routine maintenance since purchasing in January 2024. On 9/4/2025, just before arriving home from work, the oil light came on. I checked the dipstick and it was dry. There was no oil in the engine. The last oil change was ~3600 miles ago (regular intervals of 5,000 with synthetic oil). I added two quarts of oil before driving anywhere. On 9/5/2025, I took the vehicle into a shop to have the oil topped off and asked if there were any obvious signs of a leak. The mechanic noted there were no signs of a leak, but added that Hyundai had a lawsuit about the Theta II engine consuming an excessive amount of oil and to look into it. Upon looking into the lawsuit, it came to my attention that my vehicle has this engine and this is a likely culprit to the problem. This report was advised to work toward a resolution to the issue.

I believe I am having an oil burning/consumption problem. I drove my car and the oil light flashed and I have had some hesitations in the engine. I checked the oil upon parking at my home and I had no oil on the dipstick. I put in approx 4.5 qts of oil. I read online that there is an oil consumption issue with my engine type (2.4 gdi). I called Hyundai Service Dept at my local dealership and they told me before looking at the car that wasnt an issue and not the problem. They investigated and found 0 leaks or issues with the car and engine. We did an oil change and they told me to come back in 1k miles. Im very close to the 1k miles and my dipstick is showing low level of oil. The dealership is not happy that I called today to tell them this and said just come in once you hit the 1k and no sooner. I have been told that the next test that needs to be done will be between 700 and 800 dollars out of my pocket as "Hyundai doesnt like to cover the tests and neither does the extended warranty." This appears to be a bigger issue than what Hyundai wants to acknowledge. I have no confidence in them fixing the car and debating to trade my sante fe in and getting a new car at this point.

I had my oil changed at a reputable service center November 19, 2025 and the mechanic said my oil drip pan and plug needed to be replaced in the next few months because they were showing wear and could fail. He asked if I knew about a pending lawsuit against Hyundai concerning these items causing major issues. I said I was unaware, so I researched it. It seems to be legit. During my research there were multiple reports that many had oil leaking problems and some owners reported that the vehicle completely stopped running. That is especially dangerous driving on an Interstate. I was quoted about $350.00 to replace the pan and plug but I was told to contact the local dealership to see if they would replace it. They wanted $215.00 for a diagnostic plus parts and labor. That is quite a chunk of money for a drip pan and plug.

Car was burning a significant amount of oil in between oil changes. The driving down the highway the car started missing and almost stalled out at 60 mph almost causing a accident now vehicle will not run properly and is blowing black smoke out of the tailpipe

2020 Santa Fe. Engine is consuming oil exceding average rate of 1 quart / 1000 miles. No smoke, no external leaks. No warning until car begins to shudder while driving.

Check engine light began flashing suddenly as I was driving. My vehicle went into limp mode on the interstate in 70 mph traffic, it was dark and pouring down rain. The check engine light was no longer flashing when I went the next day to take to the dealership to be checked. They stated nothing can be done unless it is flashing when I bring it in. This is the 3rd time it has happened in this vehicle, and I have taken in on other occasions with no resolution. This puts my family and I at risk. This appears to have same issues as my previous vehicle a 2014 sonata limited 2.0t.

Change the oil in the engine and found metal flakes in the oil. Took it to the dealership and they stated this is normal. After going to another dealership they found that this was not normal and had to replace the motor. Now three (3) months later the check engine light is flashing. It has a code of P1326. Was told this could be a knock sensor or it could be something wrong ever further into the engine.

The contact owns a 2020 Hyundai Santa Fe. The contact stated while driving at higher speeds, the vehicle experienced a momentary loss of motive power. The check engine warning light was illuminated. An unknown local dealer was contacted, but the vehicle was not diagnosed or repaired due to the cost. The contact stated that prior to the failure, the vehicle was taken to Auto Zone where a diagnostic scanner was used to diagnose the vehicle. The contact was informed that the MAP sensor had failed and needed to be replaced. The vehicle was taken to Advance Auto Parts where, the DTC code: P2565; was retrieved. The contact stated that the spark plugs, and the MAP sensor were previously replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 100,363.

While driving down the highway my car started slowing down and would not accelerate. All the lights came up on the dash board and would not let me accelerate. I had to merge 2 lanes to the shoulder on a busy highway where my car ended up dying and would not turn over. I was concerned for my safety and the speed limit was 70MPH and my car rapidly went down. After 5 minutes my car came back on and then immediately stopped working again. I had my car towed to the local Hyundai dealer where they said I would need a new engine on a 4 year old car. My make and model are in the recall for engine issues but my VIN # was not included. I spoke to Hyundai a few times and they stated there was nothing they can do and we needed to pay for the new engine.

Vehicle has developed excessive oil consumption. No leaks to be found. Using approximately one quart a week.

Knock sensor failed while it was raining and at highway speed and caused the vehicle to slow and jerk. After further investigation this has been a recall issue for several years , but Hyundai still has a problem with their Knock sensor and no recall on the 2020 Santa Fe

Twice while driving in traffic my vehicle’s engine randomly shut off. This left me in very unsafe conditons as one as at a busy intersection which resulted in cars going around me while I attempted to restart my vehicle. The problem hasn’t been reproduced by a dealership. The vehicle hasn’t been inspected. No warning lights or dtc. First failure was 6ish weeks ago.