After the installation of the Service Campaign 9C2 engine update, the car now seems to surge or rev up briefly at lower speeds like it can't find the right gear or is trying to briefly accelerate. It doesn't seem to be as noticeable at highway speeds, but in residential or low speeds, it's very noticeable and a little unsettling as the car feels like it wants to briefly lunge forward. No lights are on the dash and there is no indication of any malfunction, but it did not behave this way prior to the 9C2 engine program update. I waited for a couple weeks before contacting Hyundai Corporate about this issue because I was hoping maybe the transmission or engine was relearning after a battery disconnection, but it has not gone away.
2017 Hyundai Santa Fe engine complaints
Page 3 of 24: complaints 41 to 70 of 673, newest first, as owners wrote them.
The contact owns a 2017 Hyundai Santa Fe. The contact stated that the vehicle was using an excessive amount of oil. There were no warning lights illuminated. There was no indication of a leak. The local dealer was contacted, but the vehicle was not diagnosed or repaired. The dealer informed the contact the failure was related to combustion chamber cleaning. The manufacturer was contacted, who informed the diagnostic fees were at her expense and there was no coverage. The failure mileage was approximately 94,700.
Engine seized up on the interstate. Vehicle has ~97,000 miles. Towed to dealership. Dealership wanted $8,000+ to replace engine. Hyundai refused to honor their warranty of 15 years/150,000 miles. Remains at the dealership, unrepaired.
My vehicle had oil consumption problems that were fixed with a new replacement engine now my catalytic converter is going bad due to engine oil consumption problems and the dealer I deal with is refusing to help with this issue. There is only around 50k miles on the new engine. I would greatly appreciate your help with this Thank you!
On 4/17/26 McDonalds Hyundai of [XXX] , dealership performed an ECU update for THETA II Emissions logic improvement (Hyundai campaign number 9C2). Ever since that time the vehicle has been lurching during acceleration. This happens particularly when the vehicle has been sitting for several hours. I reported this to the dealership on 4/28/26 (Scott, service manager) and to Hyundai on 4/29/26 (Hyundai Case Management #: 42610495). I noted to Hyundai that this same/similar problem has been reported by other owners ( see [XXX] ) INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
The contact owns a 2017 Hyundai Santa. The contact stated that while driving at approximately 55 MPH, the vehicle stalled and hesitated to accelerate while the accelerator pedal was depressed. The check engine and check engine oil warning lights illuminated. The vehicle was taken to a local O'Reilly's, where it was diagnosed with ignition coil #3 misfire. The vehicle was not repaired. The vehicle was towed to an independent mechanic, where it was diagnosed and determined that the engine needed to be replaced due to severe engine oil consumption. The vehicle was then to a local dealer, where it was diagnosed with abnormal engine oil consumption, and the dealer determined that the engine needed to be replaced. The vehicle was not repaired. The contact stated that the vehicle required an engine oil refill 800-1,000 miles before an engine oil change was due. The contact related the failure to several unknown Hyundai TSBs. The manufacturer was made aware of the failure, and a case was filed. The failure mileage was approximately 87,000.
While driving home on the highway from our sons hockey game at about 8:30 pm we were going about 60 mph when the car made a noise and began smoking and as we were trying to pull over on the side of the highway noticed by the reflection of a passing car that the engine on our vehicle was on fire under the vehicle. We had to evacuate the vehicle quickly and get our children out on the side of a busy highway with fire showing under the front end of the car.
My wife's 2017 Hyundai Santa Fe Limited experienced a sudden crack in the engine and lost oil without any warning signs. There were no warning lights, no check engine light, and no unusual noise before the engice crack. A certified independent mechanic inspected the vehicle and confirmed the engine has no oil, whick it did a couple days before when I checked the oil and topped it off, which is the same issue described in Hyundai’s known engine safety recalls. I was never notified of any safety campaigns or recalls. I am not the first owner, so the required recall inspections and updates were never completed on this vehicle before I bought it. The sudden engine crack and loss of oil created a serious safety risk, especially because there was no warning before it happened and it almost left our family stranded two hours from home. This failure matches the symptoms described in Hyundai’s Theta II engine defect investigations. While at the mechanic shop, we were quoted $10,000 to get a new remanufactured engine put into this car. I certainly (and I know most families) don't have $10k sitting around waiting to be used for car repairs. I am requesting that the federal safety agency investigate whether this vehicle should be included in the affected group, and whether this engine failure is part of the broader safety defect already identified in many Hyundai engines from the same model years. This vehicle is currently parked in our yard waiting to be repaired or sold. I would prefer it be repaired by Hyundai since one of the car plants is only 1 hour from our house. I was unaware of the current safety recall until I read it today.
My engine just died wont start has 121099 and hyundai wont fix it
Seem like there was a recall on the 3.3L engines on the Hyundai Santa Fe starting January 26, 2017, for engine related knocking noise. My Vin is [XXX] according to the Manufacturing plate it was made in Korea released on January 04, 2017. I realize it is a 22-day window on the recall but after an oil change the motor has started knocking the oil is the right viscosity, full to capacity, and oil filter changed. I drove 200 miles after an oil change then the motor started knocking. Is there a certain stamp on the cam shafts to verify which of the 420 vehicles are affected by this recall? INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
My 2017 Hyundai Santa Fe Sport 2.0T (Theta II 2.0L GDI Turbo engine) has been diagnosed with burned exhaust valves requiring a complete engine replacement. This is the second catastrophic powertrain failure on this vehicle in under two years. In July 2024, I paid $2,754 to replace the turbocharger at an authorized Hyundai dealership (Wright Hyundai, [XXX] ). The burned valves are consistent with carbon buildup on intake valves, a widely documented and known deficiency of the GDI fuel delivery system used in the Theta II engine family. Carbon deposits restrict airflow, cause valve seating issues, and lead to valve failure. This is an inherent design characteristic of the engine, not a maintenance-related failure. At no point during my ownership — including during the turbocharger repair — was I informed of this known issue or advised of any preventive measures such as fuel system cleaning treatments. I am additionally concerned that the dealership's diagnostic process was incomplete. The service center diagnosed the burned valves and immediately recommended an engine replacement without performing a bearing clearance test or completing the full diagnostic flowchart. The dealership has refused to perform further diagnostics unless I pay additional fees, and has refused to share documentation from a tech line case opened with Hyundai corporate. Because diagnostics were halted at the burned valve finding, a connecting rod bearing failure — the specific defect covered under the Theta II class action settlement (In re: Hyundai and Kia Engine Litigation, NoXXX) — has not been ruled out as a contributing cause. Hyundai's National Consumer Affairs office (Case #XXX) denied my goodwill request without addressing either the known GDI carbon buildup issue or the fact that this is the second catastrophic failure on this engine platform. This vehicle has approximately 86,000 miles. I purchased it as a second owner in August 2020 at 42,730 miles. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 5
The vehicle is burning oil even when oil changes are done routinely. Then all of a sudden I have total loss of power will not go over 35 miles an hour. And climbing hill would not go over 20. It just happened no warning lights on dash So now I have a car that is still owning 8 grand on. So now a lawn ornament. I have seen on different formats. That there is hundreds having the same issue. Hyundai is not fixing the issue for any of us
Engine. It happened while I was driving. No it wasnt reproduced or confirmed by a dealer, but have been told by a couple and also me seeing that the engine wasnt able to manually be cranked at all. No inspection was done by manufacturr, police, or insurance, because it didnt cause a accident. Just engine light which have been reported to the dealership and was toled they couldnt fix it, but that was just staying on all the time for quite some time. No finally I would like to see if this can be investigated on to be a recall since the original miles are only about 68000 and shouldnt have these problem at this low mileage.
I purchase the 2017 Santa Fe Sport in October of 2023 with just short of 80K miles. It was in great condition and had no issues. I have maintained it according to Hyundai specification and regular on schedule oil changes with recommended 5w-20 full synthetic. At approximately 100K miles, I experienced an oil pressure light on the dash, when checked, the engine was approximately 2 quarts low. From this point on, the engine started consuming oil at an increasing rate all while I maintained regular maintenance. First, 1 quart a month, or about 1200 to 1500 miles, then to 1 quart every 2 weeks or 800 miles. I maintained weekly checks on the oil level and on the evening of 3/24/2026, I had added a quart, bringing the level to the midway point between the high and low dipstick markings. On the afternoon of 3/24/26 while driving on the highway in heavy, but at speed limit, traffic on the highway, I experienced a loss of power and a check engine light. I was able to exit the highway but the car started to run very rough and unable to idle. Luckily, there was no traffic approaching when I turned off the exit and made a left into parking lot to shut off the vehicle. I will be having it towed to a dealership in the next few days for their analysis.
These vehicles are not suitable to be on the road, and you the federal safety agency and Hyundai are doing NOTHING ABOUT IT. These vehicles are EATING oil, a quart every 200 miles. My daughter(college) can't even go on a short road trip to another city without adding oil. The engines in these crap cars are blowing up left & right. There are numerous Facebook page groups for these and sister Kia vehicles with the same 2.4 engines. Thousands upon thousands of posts about engine oil and engines blowing up, no one doing anything about it. My daughter's car is beautiful, but worth NOTHING due to this issue, so we are out thousands of dollars on this. We are about to go to WAR with Hyundai on this and I'm sure we'll get nowhere. If we're lucky, they'll install a rebuilt engine...BUT IT"S THE SAME CRAP ENGINE!!!!!!! So we are ALL back to square ONE and the federal safety agency is doing NOTHING. This is a well known FLAW for years now.
After performing regular oil changes, and even a new fuel pump sensor, I experienced an issue. Last oil change was within the past two weeks. Driving home from the mountains, I heard a knocking sound from the engine bay. I narrowed it down to all gears above 2500RPM, increasing knocking with RPM speed. I took it easy on the engine, mostly coasting down the mountain. Suddenly during acceleration on an uphill, a pop sounded, and copious white smoke started coming from the engine bay. I pulled over despite having no power brakes but I was fortunate to be near an off ramp in a rural area. Trying to troubleshoot roadside, i noticed fluid on the tie rod, but I wasnt able to determine what kind of fluid it was. When I try to start the car, there is one single click, the engine wont even attempt to turn over. Oil, battery and check engine lights are all on. After towing, I found that the fluid leaking from the vehicle is oil. The vehicle is currently at a transmission shop, but from my research, this isnt a transmission issue but a blown rod bearing the Hyundai engines are know for. I will be contacting a dealership to see if they will at least confirm my diagnosis.
The contact owns a 2017 Hyundai Santa Fe. The contact stated that while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The contact stated that the vehicle failed to accelerate to 40 MPH. In addition, the Hill Descent Assist and traction control warning lights were illuminated. The vehicle was turned off and restarted, and the air bag warning light illuminated. The vehicle was taken to the dealer; however, the failure was not duplicated. The contact stated that previously, there was a delay with the engine cranking with several unknown warning lights illuminated. The vehicle was taken to the dealer several times; however, the failure was not duplicated. The vehicle was taken to alternate dealers; however, the failure was not duplicated. The manufacturer was made aware of the failure. The failure mileage was unknown.
The contact owns a 2017 Hyundai Santa Fe. The contact stated that the vehicle was consuming an excessive amount of engine oil after approximately 1,500 miles, 2 weeks after an oil change was performed. While driving at various speeds, the vehicle was sluggish while attempting to accelerate. The check engine warning light has been illuminated since purchasing the vehicle. The vehicle was taken to a certified mechanic, who diagnosed the vehicle with turbocharger failure. The contact was informed that the turbocharger needed to be replaced. There was no oil found on the dipstick when the oil level was checked. The dealer was contacted and informed of the failure. The dealer determined that an oil consumption test was needed. Additionally, a cleaning of the oil system and an oil change were recommended. The vehicle was not repaired because it was not under recall. The manufacturer was informed of the failure and informed the contact that the vehicle needed to be diagnosed to determine the cause of the failure. The failure mileage was approximately 85,000.
Engine failed at approximately 95000 miles.
My Hyundai Santa Fe has a major oil leak from the oil pressure light. I took the car to a non-Hyundai shop for repair and was told that the problem should be covered under recall campaign 168. Reference Number: 17-01-071, Date of issue: December 01, 2017. A quick check of internet complaints indicates this is a common problem with this type vehicle. My oil pressure light is on at idle after the car is warmed up. Reno Hyundai dealer informs me that it is not covered by recall. I believe that this problem should be covered based on the volume of complaints from other owners. Can your organization help me in getting some kind of an cost adjustment for getting this repaired. Thank you.
Purchased this 2017 Hyundai Santa Fe from dealer with 86K miles. (second owner). Immediately noticed excessive oil consumption. Would take vehicle in for oil top off service, to ensure proper levels. At 99K miles (six months after purchase) lost compression in #2 cylinder while driving on the freeway. Per independent auto repair facility and a Hyundai service center, engine replacement is needed. Hyundai declined engine replacement. It appears oil consumption was an issue when the vehicle was traded in to the dealership, and they resold it anyway to an unsuspecting consumer.
Current Mileage: ~94,000 miles Ownership: Second owner (purchased less than one year old at 17,035 miles) I purchased this vehicle in December 2018 when it had approximately 17,035 miles. Since purchase, the vehicle has been consistently and properly maintained, primarily at authorized Hyundai dealerships, with documented oil and filter changes throughout my ownership. All required Hyundai recalls and updates have been completed. As confirmed by Hyundai service records, my vehicle is eligible for extended warranty protections under the Theta II Engine Settlement, which explicitly applies to subsequent owners and is not limited to the original purchaser. Engine Failure & Repair History Beginning in mid-2025, my vehicle began to exhibit progressive and excessive oil consumption, despite regular maintenance. Hyundai dealerships performed multiple Hyundai-directed corrective actions, including: PCV valve replacement Multiple oil consumption tests Combustion chamber cleaning (paid out of pocket after Hyundai Motors denied goodwill) These measures failed to resolve the issue. Hyundai’s own oil consumption testing confirmed: 1.2 quarts consumed, followed by 1.4 quarts consumed, indicating worsening internal engine failure West Houston Hyundai has subsequently advised that engine replacement is required, yet Hyundai Motor America has refused coverage, and I was quoted $5,872 for engine replacement and labor at my expense. Engine failure requiring replacement at 94,000 miles is not normal wear and tear and is inconsistent with reasonable consumer expectations or Hyundai’s powertrain representations. Importantly: The vehicle has never been cited for neglect, sludge, or improper maintenance,Oil consumption worsened after Hyundai-directed repairs Hyundai has not identified any misuse or disqualifying condition The failure pattern is consistent with known Theta II piston/ring defects
documented oil-consumption issue with my 2017 Hyundai Santa Fe, which currently has 98,876 miles. This concern was first formally reported in October 2025. Since that time, I have fully complied with all diagnostic and procedural requirements requested by the dealership, including inspections, documentation, and follow-up visits. The dealership has acknowledged that the vehicle has an ongoing oil-consumption condition. Per the instructions provided by Hyundai Service Team, I was advised to “submit my own claim.” I later learned that, as a customer, I am not permitted to submit or appeal a claim directly, and that only the dealership has the ability to do so. I have since been informed by Customer Care that the claim submitted on my behalf was considered weak, which may have contributed to its denial. I was also advised that Hyundai and the dealership were already aware that I did not have the ability to submit or appeal the claim myself, despite being directed to do so. Throughout this process, I have made every good-faith effort to follow Hyundai’s guidance, yet I have experienced repeated misdirection and inconsistent information. This has caused unnecessary delays and frustration while the underlying issue remains unresolved. The vehicle has been properly maintained, with regular oil changes and servicing completed according to Hyundai’s recommended intervals. Despite this, the excessive oil consumption persists and poses a risk to engine longevity and overall safety. Due to the current condition of the engine, I no longer feel it is safe to continue driving the vehicle, which has left me without reliable transportation. Additionally, I have previously experienced the theft of this vehicle, for which I was not compensated, despite the well-documented safety concerns affecting Hyundai customers. Taken together, these issues have significantly impacted my confidence and ability to rely on this vehicle. Given Hyundai’s well-documented history of oil-consumptio
I currently owned an 2017 Hyundai Santa Fe FWD with the 3.3 V6 Engine with approximately about 136,000 Miles. We were driving into Vegas when we heard the knocking Engine Sounds. Immediately we called the Dealership in Vegas advising them we were going to TOW the vehicle in. Once we get the Vehicle towed over to the dealership, we waited till the following Monday where it was authorized to have the engine replaced. We were so glad about that. The vehicle was going to be completed by early January and we got the news the Vehicle was completed but now having misfiring issues due to Faulty injectors. I was advised that this was not covered due to the mileage. This was an non issue when I turned in the vehicle to Hyundai. I made several attempts to contact my Case Manager and this was again denied due to the Mileage. For a vehicle with less than 140K miles and being less than 10 years old, we are very upset with this process and for Hyundai knowing that there were concerning issues with both the Fuel Injectors and Engine.
My 2017 Hyundai Santa Fe began consuming oil at an excessive rate—approximately one quart every 250 miles. The vehicle had around 97,000 miles when I first became concerned. I brought it to the Hyundai dealership for evaluation, and they instructed me to continue driving the vehicle and return after 1,000 miles of driving so they could document the consumption. I returned after only 500 miles because of the rapid loss of oil and my concern for driving the vehicle in that condition. While following the dealership’s required oil‑consumption test procedure, the engine performance deteriorated. The vehicle eventually began stalling and had to be towed to the dealership. Because I was required to keep driving the vehicle as part of Hyundai’s diagnostic process, I accumulated an additional 4,000 miles, which pushed the odometer just over 100,000 miles. After completing the test, the dealership submitted a claim for an engine replacement, but Hyundai Corporate denied the claim solely because the mileage exceeded 100,000—despite the fact that the over‑100,000 mileage resulted directly from Hyundai’s own required testing procedure.
Vehicle: 2017 Hyundai Santa Fe On June 9, 2024, when my wife started the vehicle, the engine was immediately knocking. Due to concern for safety and the risk of catastrophic engine failure, the vehicle was not driven and was towed to our home to prevent further damage. Hyundai was contacted shortly after discovery of the issue. During a phone call, we were told there were no active recalls applicable to our vehicle and no replacement engines available. Due to the lack of immediate support and the vehicle being undrivable, we were forced to send the vehicle to a third-party mechanic on June 14, 2024, to complete a necessary engine repair. On August 21, 2024, we received warranty documentation from Hyundai related to this issue. Despite providing all requested documentation and Hyundai contacting the third-party mechanic directly, the warranty claim process was repeatedly delayed. We were told multiple times that the case was in its final stage, only to later be assigned a new case manager with no knowledge of the case, requiring the process to restart. The vehicle was not returned to us until April 7, 2025, resulting in an extended loss of our primary vehicle for our family. We paid approximately $10,000 out of pocket for the engine repair while the warranty claim remained unresolved. We have since been informed that Hyundai may require the engine to be repaired or replaced again by a dealer with no reimbursement, potentially rendering the previous repair and financial loss unnecessary. This raises serious concerns regarding Hyundai’s handling of a known engine issue and their warranty process. Hyundai Case Number: XXX INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
I purchased my 2017 Hyundai Santa Fe Sport secondhand from CarMax and have maintained it regularly with timely oil changes and tune‑ups. Despite this, the vehicle is burning oil at an extreme rate—approximately 1 quart every 378 miles. My local Hyundai dealership confirmed this through three consecutive 1,000‑mile oil consumption tests, all showing excessive oil loss far beyond normal operating limits. This level of consumption appears to indicate an internal engine defect, not normal wear. Hyundai corporate denied my case solely because I am the second owner, even though the vehicle is well under 100,000 miles and the defect has been verified by their own technicians. The denial did not address the confirmed test results or the safety implications. I am deeply concerned that the engine could seize while driving due to rapid oil loss, creating a serious risk of sudden loss of power, stalling, or inability to accelerate in traffic. This is a significant safety hazard for me, my passengers, and other drivers. The vehicle has been inspected by the Hyundai dealership, and I am fully willing to make it available for further inspection. A low‑oil warning lamp appeared far earlier than expected after a routine oil change, which prompted the initial investigation and ultimately revealed the defect. Based on my research, this appears to be a known issue affecting Hyundai GDI engines from this era. I am filing this report because the excessive oil consumption represents a latent engine defect with clear safety implications, and Hyundai has declined to address it despite documented evidence.
Check engine code called issue for cam shaft position error. Replaced sensor, still failing. After reading online forums found that the smaller engine had oil consumption issues, I decided to check oil level, No low oil light, dip stick showed very low oil even though had been to service at Hyundai all correct service intervals. Filled oil to proper level numerous times over last year, monitor it every two weeks. Some times totally fine no oil loss and many other times it continues to have excessive oil consumption. Now randomly smell gas in cabin while driving. Reading online again and the issue is becoming more well documented by users but Hyundai has not yet acknowledged issue with this 3.3L engine. Now the gas mileage head dropped significantly which gives further indication that the piston rings are allowing oil and gas to pass by. This can lead to cam shaft bearings to wear prematurely, other mechanical parts wearing or seizing, including the engine itself for a compete engine failure, a significant risk.
Excessive oil leaks. When I fix an oil leak another pop up. Im fixing my 4th oil leak. You can smell the oil burning. Engine is making knocking sounds. Hood latch is not working. You have to hold the hood or it will come down.
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 federal safety agency 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.
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