2017 Hyundai Santa Fe POWER TRAIN,ENGINE

I have a 2017 Hyundai Santa Fe with ~88,000 miles. I noticed on 12/18/2025 that the oil lamp light came on briefly then turned off. So, I decided to take my car in to get serviced on 12/19/2025. I was told that there is an oil consumption issue with the engine and that Hyundai would need to do a combustion cleaning, and worst case scenario a full engine replacement. Hyundai refuses to cover us under warranty because we transferred the car from my Mother-in-Law's name to my wife's name. I want to file this as a complaint to the NHTSA because a car that isn't even 10-years old AND has less than 90,000 miles should not be needing an engine replacement. Hyundai appears to be aware of the issue as my service advisor at the dealership has mentioned that several of their cars with this engine have the exact same issue. To me, this sounds like a defect and should have a recall.

“My 2017 Hyundai Santa Fe Sport 2.4 has been experiencing severe oil consumption issues for a long time. I previously completed a combustion chamber cleaning service as recommended, but the problem continued. On November 10, the Hyundai dealership confirmed the engine oil was low and topped it off. On December 10, the oil was completely empty again with no warning lights. The dealer has documented the issue and recommended an engine replacement, but Hyundai is refusing to approve the repair . The vehicle continues to lose oil rapidly, creating a serious safety risk of engine failure or stalling while driving. This appears to be a known safety-related engine defect affecting this model.”

Was driving on [XXX] (approximately 130 miles from home), when a loud clunking and metal on metal sound was heard, the causing power loss, slowing of vehicle and necessitated immediate pulling over to the side of the road. The was a catastrophic internal engine failure which caused the spark plugs to blow out. There were no warnings. The car was just inspected and had an oil change earlier in the month. The vehicle suffered sudden power loss and violent metal-on-metal destruction while transporting my child on [XXX] (130 miles from home). Certified diagnostics from Kennett Square Quick Lane Auto confirm: "Multiple spark plugs forcibly ejected due to severe internal engine damage – full replacement required". Quick Lane said they would not be able to replace the Engine. so the Vehicle was towed to Reliable Car Connection (West Chester, PA). I had tried to make an appointment at Piazza Hyundai, but the did not have appointments until Mid August. Result: Stranded overnight requiring hotel and towing/tolls at personal expense (receipts available). This traumatic event directly stems from Hyundai’s acknowledged Theta II defects. Hyundai’s Documented Failures: Recall Compliance: Recall 996 (Piazza Hyundai, 4/12/24) Recall 953 (1/31/19) Recall 163 (7/18/17) Maintenance: All services performed per Hyundai schedules (records available). Unresolved Defects: This failure matches: Recall 20VH4 (Lifetime Warranty Extension) Recall 20VH5 TSB 20-01-033H Current Status: Vehicle at Reliable Car Connection (West Chester, PA) after Piazza Hyundai’s unacceptable 6-week delay. INOPERABLE & UNSAFE – Cannot transport children. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

This vehicle has experienced numerous serious failures, including two engine replacements, a transmission replacement, and persistent safety system malfunctions. The Downhill Brake Control (DBC) system remains stuck in the "on" position, and the traction control warning light stays illuminated. These issues directly compromise vehicle safety and stability, particularly on hilly or wet roads. Despite extensive service at Arapahoe Hyundai in Centennial, CO, these problems continue to return. The vehicle has been in the shop multiple times and was most recently in service for nearly 30 days. My wife was stranded at the dealership today due to the same unresolved safety system failure. Dealer communication has been poor, and repairs are often incomplete, requiring immediate return visits. The repeated failure of safety-critical systems, combined with the inability to resolve the issues long-term, presents a significant safety concern for both my family and others on the road. I am requesting NHTSA to investigate whether this is part of a broader defect pattern affecting 2017 Hyundai Santa Fe models and if a recall is warranted.

T3G Campaign 2017 Hyundai Santa Fe Sport AWD, 116000 miles. Purchased from a dealer in VA [XXX]. Never would have purchased if engine issues had been disclosed. The letter re:T3G campaign went out to dealers/service managers from Hyundai (of which I have a copy) is dated for October 2019. We never received any information regarding a T3G campaign. We took my car to the dealership on 12/16/24. (Valdese, NC). In 5 hours, they said they ran diagnostics & found the P0302 Misfire code. Without running further tests, they adamantly claimed there was a dead cylinder & the only fix was to replace the engine. Note: Spark plugs were replaced 2 weeks before this visit on Dec 1, 2024. They refused to listen to my concerns about the T3G campaign. Said vehicle didn't have that issue. That they couldn't run the tests because the P1326 code wasn't present (but it was in Sept). They didn't do anything about the current open recalls. They said they didn't have time. Corporate confirmed that my vehicle has had the correct service campaigns completed to qualify for the T3G campaign. I have called corporate twice-No response. We are very upset over the lack of care and solutions. We gave consent for work & nothing was done. The service manager was practically shouting that this car would leave me stranded, it wasn’t safe to drive, & that the only option to fix was to replace the engine/get rid of it. I was basically told it wasn't worth fixing. Putting a new engine in would equal than the car is worth at trade in value. No one can give me a guarantee that a new engine (even brand new from the factory) would not have the same problem that is happening now. Make this right by immediately authorizing an engine replacement for my vehicle to include a loaner vehicle & tow charge cover. I am aware of the class action lawsuit from 2021. Hyundai refuses to issue a recall for this engine issue. Please see attached letter for more information. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Catastrophic engine failure without warning. Rod bearings blew car unable to produce power.

On 11/6/ 2023, while drive on the turnpike my check engine light went on and vehicle went in limp mode. I was scared and felt unsafe as I did not know what was happening. Got vehicle to dealer and P1326 was the code. Vehicle needs new engine. BCT test failed. Hyundai not helpful even when documentation provided.

The vehicle suddenly shut down while driving and the wheels locked up. There were no warning indicators at all. The failure happened to occur on a residential street, but if at speed on a highway this likely would have resulted an an accident. Upon inspection at the dealership it was determined that a connecting rod bearing failed and the rod had created a nearly 3 inch split in the engine block.

Was going down the highway at 65 when my vehicle completely lost the accelerating component. Almost got rear ended so I pulled off. Then made it to work when it happened again. The engine light came on and gave 2 codes. Finally got it towed to the dealership where they have decided it’s either a new timing chain or new engine due to mechanical loss. They discovered there was no oil in the car and they have also found metal shavings in my oil. Now they are telling me I need a whole new engine. I only have 135,644 miles on this car. The car was driving perfectly fine the day before and had just been to the dealer and looked over 1,500 miles before and I was told everything was perfect working condition.

On [XXX] (a Sunday, 9 pm), my 19 year old daughter was driving our 2017 Hyundai Santa Fe Limited when a solid yellow check engine light came on. No other warning lights were on. She called us, but since a solid check engine light should not indicate an emergent issue, we advised her to carefully drive the car back to school and we'd get it checked out the next day (since it was after 9 pm on a Sunday). The vehicle didn't make it that far. While driving, the car suddenly lost power and stalled. It started up again but made a terrible sound. We were able to call roadside assistance and had the vehicle towed to a nearby Hyundai dealership. The dealership tells us the car needs a new engine and that our VIN it is not covered under any of the other current engine recalls (even though this is the exact same issue as those recalls) and also said they will not repair under the 100,000 mile warranty, since we are the 2nd owners. We are awaiting a report from the dealership on exactly what happened to kill the engine, but we can infer, through the discussion with the service manage, that this is exactly the same issue happening with other versions of the Santa Fe engine -- including complete engine seizure without any accompanying warning lights or indications. This poses an imminent risk to the safety of drivers and passengers. My daughter was 20 minutes from her college dorm, late at night, and we can only be thankful she was not driving at high speed on the highway when the engine seizure occurred and also that she was not left stranded in an unpopulated stretch of highway. The vehicle is currently at Steele Hyundai (address: 24795 I-35, Kyle, TX 78640. Phone number: (512) 262-2020 ). They have quoted $13,000 for a used replacement engine. Please issue a recall on the 3.3l GDI engine. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I first brought my car into a Hyundai certified service center after my car shook violently and my check engine light started flashing at me. I had to pull over on the side of a busy highway which is a safety risk on it's own. the Hyundai service center "fixed" my car and I was on my way. this was In September of 2023. on February 14th 2024 the same thing happened leaving me stranded on the side of another busy highway during rush hour traffic. I got the car towed to a dealer and they are telling me I need to replace my engine since there is a malfunction with the exact same parts that they replaced in September. In September They pretty much rebuilt my engine and now, less then 6 months later, they are telling me my engine is shot and needs to be replaced. How could $6,000 worth of engine parts fail after less than 6 month? not only is that not stable financially for anyone who owns one of these vehicles, it is a huge safety risk! even if I do replace the engine in my car, when will it go out again? 5 months? maybe 6 if I am lucky? at least the last 2 times, I was lucky enough to be in the right lane already and make it to the side of the road in time. What happens if that is not the case next time?

On [XXX], I was driving southbound on the highway near Elizabeth City, NC when all of a sudden, my vehicle decelerated from 65 mph to 20 mph (limp mode) with no warning except for the sudden onset of a knocking noise in the engine compartment and the check engine light coming on immediately before entering limp mode. I was in the passing lane and thankfully was able to safely make it to the shoulder of the road. I had the vehicle towed to an independent engine and transmission shop where I was informed that the timing chain had caused severe damage to the engine, including metal shavings in the fluids. I had just had an oil change 3 days prior and am the second owner of the vehicle. It only has approximately 78,500 miles on it and I have only owned it for three months. I have insured that all maintenance was up to date and verified with the dealer that it had been maintained per the maintenance schedule prior to me purchasing it. The engine seems to be a constant and known problem for 2017 Hyundai Santa Fe’s with the 3.3L engines, and it truly needs to be addressed before someone is seriously injured or, worse yet, killed from not being able to safely make it to the shoulder of a road. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

My wife was driving down the freeway to work during morning commute when her 2017 Santa Fe just lost power, was only able to go maybe 20mph which during an early morning Bay Area commute is very dangerous... No engine light or any warning lights, this lasted for a couple miles until the next exit she pulled off still no warning indicators showing, she turned off the car for a few minutes, then turned it back on to continue to work there was still almost no power but no indicators on the dash, finally after a few minutes started driving normal again. The next day when she was on her way to work, she started getting an oil light, I drove 45min to her job checked and oil level was fine, turns out oil pressure sensor was bad. After that was replaced everything seemed normal for around 1month or so then noticed excessive oil consumption, needing to add 1qt every 1500-2000 mi, no oil leaking onto out driveway and can't see any oil leaks visually around engine. Oil consumption has gotten progressively worse, we keep it topped off every couple weeks. No we are getting check engine light and tapping sound on passenger side of engine. Codes P0346, P0021 and P0087, power is fine but tapping sounds bad and worried of failure while driving.

Morning of October 16th, wife said engine "clicked" at start and then stopped at idle. I checked oil as it had been changed week prior and all levels were normal, then performed diagnostic with Carista tool and app, no codes. That evening while on the way to my 4 year olds practice, the car stopped in a lane of travel on a main cross town thoroughfare in Charlotte NC in rush hour, my wife, 4 year old, and 1 year old in the car. No light or indicators AT ALL ever came on NOTHING, no check engine light, nothing. Had it towed to local shop and he said this is the 10th or 11th Santa Fe we have seen with the V6, it most likely is the motor. So he does prelim diagnostic and suspects a thrown bearing and recommended we tow to Hyundai dealership, just at 70k, how is this possible? We are second owners and our VIN does not qualify for campaign 168. Shocking to now realize this appears to be an ongoing issues with this engine

The engine of my 2017 Hyundai Santa Fe started making a loud knocking sound on 9/29/2023. I took the car to a certified mechanic who said that the engine had “thrown a rod.” I researched the NHTSA website and found NHTSA Part 573 Safety Recall Report No. 17V-578 dated Sep 20, 2017. While I never received this notice, the Descriptive Information and Description Defect mirror the problem with my car exactly. The recall was for 3.3L “Lambda” engines produced at the Asan Plant (Korea) between January 26, 2017 and February 13, 2017. My car was produced February 7, 2017.

My ‘17 Santa Fe has been well taken care of with regular oil changes and we have kept up with the recommended maintenance. While driving on 8/17/2023 the car started to struggle to accelerate and I heard a knocking sound. Within moments there was total engine and power failure and I had to quickly get the vehicle off the road to avoid being rear ended. There were no warning lights on until the moment it was dying. The battery light, check engine light, and oil light came on, but then the vehicle had quickly lost all power immediately after. Once it was towed to Meineke and looked over by the mechanics there it was determined that it needs a new engine and that it had very, very little oil in it.

Without any notification from a malfunction indicator light, there was a sudden knock followed by loss of power. Luckily I was on a country road and not on the highway 99 where congested traffic could have been a hazard. My mechanic said it was a rod bearing code causing catastrophic failure of the motor.

Rod bearing failure causing rod knocking. Engine needs rebuilt or replaced!

1. Over several documented and undocumented times since July 2021, this vehicle has consistently lost >1 quart of oil every 1k miles. 2. This issue has been confirmed by the dealerships involved several times. 3. It is identified as the Theta engine failure. It began in 2012-13 and has been a constant for Hyundai and Kia models for 7 years. 4. There were no warnings from the initial ignition vehicles system check or at any time while operating this vehicle. Even when the engine loss was measured at about 4 qts. 5. This vehicle has been through 2 complete "oil consumption" programs that measure the oil loss during three consecutive 1K mile periods. Also it has had 2 "combustion cleanings" after which a follow up 1k mile oil check found that it still lost >1 qt of oil. 6. The failure of this engine is always a concern. I have personal and anecdotal testimony of what can happen with the failure of this engine. My wife and I are both in our 70's. We are also helping our 26 year old grandson with various transportation requirements. He has spastic dysplasia cerebral palsy and is unable to walk without a cane or walker. Longer distances require a wheelchair. We cannot push that wheelchair, we cannot carry him. We are in trouble if this engine fails and we are miles from home. Also, the vehicle under went the required ECM UPDATE as required by the NHTSA at 39843 miles on January 11, 2019. This update required the installation of a module that would decrease the RPM'S of the engine if there was a failure. There are horror stories on various FB Group pages about the terror of being on a 70 mph road, in the middle lane, when the engine fails and goes immediately to 35 mph. I have a personal friend who experienced that on I-95 in Maryland and was petrified. 6. Finally, after speaking with various Hyundai Service employees, I feel that I was mistreated after the first process. When my SUV lost >1 qt after 1K miles after the cleaning, I should have gotten a new engine.

We were traveling down the road 12/08/22 and a clanging noise started. we were only a few miles from the Hyundai place in Orlando so we drove there. They put us in a rental and said most likely it threw a rod and would need the Engine replaced. It had about 95500 miles on it. Universal Hyundai called and said Hyuandi would replace the engine as goodwill with a rebuilt engine and It will cost me 1300.00. after 65 days in the shop they said I can pick it up. Drove it 11 miles and it broke down again. got it towed back to Universal Hyundai. They said it was the start and alternator and it will cost me 2000.00. My car is 4.5 hours away from where I live. The month before I had to have both sensor assy- oxygen replaced, they changed me for that also. In February of 2022 the Catiliyst Convertor was replaced, which was covered under warranty. I maintained my oil changes.

I had been driving my 2017 Santa Fe SE (6cyl, 3.3L engine) for approximately three hours when the battery, oil, and engine lights all lit up and the engine shut down immediately. I'd had no prior warning of an issue and lost power/control of the vehicle in less than a minute. My vehicle was towed to my mechanic who determined a complete engine failure. Tranfer of vehicle to Hyundai dealership for evaluation for work under warranty confirmed the engine failure.

Passenger airbag constantly coming on when there is a passenger, and when no one is on the passenger seat. Oil light has been flashing/ lighting up and going off. I told several service members about this problem, they all shrug it off. One said I could pay $150 for diagnostic test, but why should I pay when they know what’s going on with it? This seems to be a common issue with this vehicle, so why can’t I just get my car repaired and the company do right by consumers who have trusted them?! I thought the oil light coming on meant time for an oil change- even though it’s only been 2-3 weeks -because no one at my dealership where I get my car serviced mentioned it meant something more serious, like I’m LOW on oil... CONSTANTLY! This has been happening and my records at the dealership show I’ve been coming almost every two months for an oil change. I recently spoke with someone from the dealership in Daphne, Al and they told me they couldn’t help me AT ALL, not even the oil consumption tests because I’m not the original owner. Basically denied me of a service! How rude and inconsiderate, especially when I’m still paying for a car that potentially has engine problems. I paid for the extended warranty as well. Now all of a sudden, yesterday morning, on my way to work, my car was jerking/ missing like it doesn’t want to accelerate… and also when I was reversing! This is my only means of transportation to and from work. Thanks for reviewing my complaint and I hate I have to complain bc I love my little car. Just wish the dealership/ Hyundai would understand this isn’t right and might need to take these cars off the market or recall and fix! Please help!

On November 14, 2022 at approximately 0800 while traveling 495N in Massachusetts from Cape Cod my 2017 Hyundai Santa Fe with 109,000 miles experienced catastrophic engine failure. I was maintaining a speed of approximately 70 MPH when without waring the 3.3L V6 engine stalled and made loud clunking noises while smoke filled up the cabin of the vehicle causing me to cough and choke, my visibility was also diminished. I was fortunate enough to pull the vehicle to the right side of the highway and did cut someone off because I panicked and could not see almost causing a serious crash. The vehicle was then towed to a Hyundai dealership in Raynham, MA. The service advisors tried helping me with getting a new engine replacement from Hyundai Corporate, Corporate would not honor their demands and now I'm without a vehicle for myself to get to and from work and for my family so they can attend school, doctors appointments and social events.

From what I was told by the dealer my engine has failed / locked up due to the low bearings. I was put at risk because as I was driving at 45mph on a dry road and the vehicle acted as if I hit the brake and skid, luckily I was able to get to the side of the road and noticed lights on my dash, I tried to start the vehicle while parked and it sounded like marbles so I immediately turned it off. The vehicle is currently at the dealership, waiting for approval for repair. There were not any warning lights prior to this happening. My vehicle only has around 56,000 mile on it. I am aware of the open recall, I received 2 notices about it, but was never notified there was a remedy and to make an appointment. I don't think my recent issue has anything to do with the current open recall. I mentioned to the dealership I was aware of the open recall and I was told they would take care of it while working on my engine issue.

car was in shop for recall on wheel sensor ,next day the engine stopped working properly .ran really ruff and hesitated .took back to dealer and told 2 cylinders were not running correctly. i was told they would submit the Hyundai for engine replacement. Hyundai denied its under warranty or there problem ,when there is a history or engines failing in the 2017 year .class action lawsuits against them for it.