213 of the 472 complaints about the 2017 Hyundai Santa FE Sport are about the engine — 45% of everything reported for this model year. Half of the failures with a mileage on record happened before 75,857 miles.
213
Complaints
0
Crashes
5
Fires
1
Injuries
Filed with NHTSA, in their own words.
ENGINE
In June 2026 I took my vehicle to Hyundai for a recall to the ECM module. After that my vehicle would lose power and hesitate to shift gears, and overall does not feel safe. Took vehicle back to dealer and they have told me that I have to wait for them to issue a recall fix for this now .
NHTSA complaint #11755929 — an unverified report by a vehicle owner.
ENGINE
After the recent "important service campaign" involving the THETA II Emissions Logic Improvement my vehicle no longer safety shifts into the lower gears. It will not shift into gear. I am unable to safely get up to a normal speed and the engine and vehicle start shaking. This is isolated to the initial start of the vehicle and any low speed driving after. The issue is resolved after restarting the car, suggesting it is a software issue. This issue immediately began after the ECU update for the THETA II emissions logic improvement on 5/12/2026.
NHTSA complaint #11754160 — an unverified report by a vehicle owner.
ENGINE
After a recall repair (Campaign 9C2) was performed on my vehicle, it developed a hesitation and lack of acceleration issue that did not exist before the repair. The vehicle exhibits rough or delayed gear shifting, a noticeable lack of power/acceleration, and behavior that feels like the engine is not receiving adequate fuel. This occurs both during cold start and after the vehicle has been driven and is fully warm
NHTSA complaint #11752291 — an unverified report by a vehicle owner.
ENGINE
We have a 2017 Hyundai Santa Fe Sport with a refurbished engine due to a past class act settlement, we were notified by Hyundai to bring in the vehicle for Service campaign 9C2 to update the Engine Control Module (ECM) Software for vehicles equipped with the (2.4 GDI) Theta II refurbished engine, which we have. The morning after we updated the 9C2 software, after starting our car cold for the first time in the am, our car went into limp mode, shaking very badly, it would not accelerate above 20 MPH, it had a lot of trouble shifting from 1st to 3rd gear and acted like it was going to stall out and then die in the middle of the road while I was in the car with my 2 children. The dealership we took it to was not able to duplicate the limp mode, but has documented that they did witness hesitation and sluggishness while test driving it. I cannot validate that it was test driven cold immediately as requested as all their test drives were done without me. Due to the vehicle not accelerating as it should normally, I feel the vehicle is very unsafe and unreliable as well. I’m willing to provide more documentation, and our car is available for further inspection. I did request the help of a Hyundai customer relations case manager who stated Hyundai is aware of all of the drive-ability issues I have stated and he said they are hoping to provide another software update, but that time frame is unknown. Dealership mechanic stated the same thing and believes our issue is related to the 9C2 update. The manufacture has not inspected the vehicle, but we would absolutely love them to if they would. There have been no check engine lights come on before or after this update, only misfire codes came up after the update which dealership has those, and since the dealership was unable to witness it going into limp mode while driving it, they could not gain the much needed data that pinpoints the exact problem. We were advised to warm up car and rev up the RPM to above 2,000 before driving.
NHTSA complaint #11752266 — an unverified report by a vehicle owner.
ENGINE
After a recall repair (Campaign 9C2) was performed on my vehicle, it developed a hesitation and lack of acceleration issue that did not exist before the repair. The vehicle exhibits rough or delayed gear shifting, a noticeable lack of power/acceleration, and behavior that feels like the engine is not receiving adequate fuel. This occurs both during cold start and after the vehicle has been driven and is fully warm. I returned the vehicle to the dealership (Wallace Hyundai), where the service advisor personally test drove the car with me and confirmed he could feel the hesitation firsthand. Despite this, the dealership stated no issue was found and advised warming the car up for 1-3 minutes before driving as a workaround. I tested this exact recommendation, and the issue returned even after the vehicle was fully warmed and had already been driven. Hyundai Motor America's National Consumer Affairs department has stated this is "under review" but has also described the hesitation as "normal" cold-start behavior related to catalyst warm-up. This does not match what I am experiencing, since the issue also occurs when the vehicle is already warm, and their own dealership's advisor confirmed the problem exists. I have also noticed a decrease in fuel efficiency (MPG) since the software update associated with this recall. This issue directly affects the safe operation of the vehicle — specifically the ability to accelerate reliably, including in situations like merging onto highways or pulling into traffic, where a lack of power could result in a collision. I do not consider the vehicle safe to drive in its current condition.
NHTSA complaint #11749084 — an unverified report by a vehicle owner.
ENGINE
Campaign 9C2 was installed on this vehicle and the now the vehicle is a danger to drive. My wife refuses to drive it as it bucks and jerks as well as the gas mileage has decreased from 35 highway to 28 highway. The fuel trims are way off on cold starts and the transmission now searches for the correct gear. Shifting back and forth. Just a slight touch of the accelerator and the car seems to jump forward which makes stop and go driving almost impossible.
NHTSA complaint #11746463 — an unverified report by a vehicle owner.
ENGINE
My 2017 Hyundai Santa Fe sport has never had any issues until last Friday when I took my car to the dealership for regular maintenance (oil change, tire rotation) as I always do. They also performed a software update for recall campaign 9C2. Every day since, when first starting the car after it’s been resting for a while, I’ve experienced a jerky transmission and rough shifting for a first couple minutes of driving. Hyundai has acknowledged they are aware of this issue related to the campaign and the dealership said they’ve had many customers complaining of the same problem following the recall update. However, Hyundai has offered no resolution, other than recommending the car warm up for 13 minutes after starting. Hyundai needs to correct the issue they caused, as my car was perfectly fine before it was serviced and now it’s not performing properly.
NHTSA complaint #11745132 — an unverified report by a vehicle owner.
ENGINE
Following the completion of an official emissions recall software upgrade at Fitzgerald Auto Mall Countryside, Clearwater Florida, my 2017 Hyundai Santa Fe Sport (52,000 miles) now suffers from a severe loss of motive power and erratic transmission shifting/jerking during cold starts throughout day. The vehicle continues to hesitate during cold starts, making it impossible to safely accelerate from a stop into incoming traffic. I returned to dealership on 5/29/26 to address continued driving issues. The servicing dealership states they don't have a software fix and offer no mechanical fix. The dealership states they received an internal memo from Hyundai Corporate which instructed the dealership to tell affected owners to idle the vehicle for 1-3 minutes before driving to allow system adjustments. Forcing a consumer to wait out a dangerous powertrain defect in a running vehicle to avoid a roadway acceleration/loss accident is an unacceptable safety hazard. The manufacturers recall update has actively compromised the safe operation and motive control of this vehicle.
NHTSA complaint #11743387 — an unverified report by a vehicle owner.
ENGINE
After the ECM recall for a software update the car would not run correctly. It jerks and and runs rough. It almost stalls when you put your foot on the gas. I took it back to the dealer and they can not get the problem to duplicate. Noone else has looked at the problem. There were never any problems with the care until the recall. The problem occurred the day I brought the car home from the ECM update.
NHTSA complaint #11740806 — an unverified report by a vehicle owner.
ENGINE
Hello, I was driving home from work with my six-month old in the car and the engine stalled while on the Belleville Turnpike. It seized and I was almost rear-ended by a tractor trailer hauling lumber to the lumber yard just a few streets away. I couldn't move the car and was afraid of how to even attempt to secure my car as my daughter was strapped in her car seat. An extremely nice man pulled over and began to flag vehicle to go around me. By this time, I had only my hazard lights on. I was frightened beyond belief having gone through that experience. The car was towed to the dealership who confirmed it was catastrophic engine failure(misfire of a cylinder). They stated initially with my 3rd party warrant that it would be covered and in their words " it was a good thing I had a warranty". Fast forward to two weeks after I check to see what is going on. Things have changed. Now, because I am missing one oil change receipt, they need to be paid $1400, to further corroborate the cause of the engine failure. I haven't paid and honestly don't plan on paying them anything. To date, I have spent over $2,000 on car rental fees since my car is now sitting at the Global Hyundai Dealership.
NHTSA complaint #11740536 — an unverified report by a vehicle owner.
ENGINE
NO power till car warms up for 5 minutes. It will be jerky on highway. The gas mileage is going down drastically, I was doing 32 miles to gallon and now it's 22mpg. All this is after the recall we just had performed. I have no power trying to avoid accidents, taking off from stopping. Car smells weird now.
NHTSA complaint #11739585 — an unverified report by a vehicle owner.
ENGINE AND ENGINE COOLING
The contact owns a 2017 Hyundai Santa Fe Sport. The contact stated that while driving approximately 35 MPH a loud noise and smoke was suddenly present coming from under the hood of the vehicle and the engine stalled. The vehicle was towed back to the home. The contact indicated that during the failure no warning messages or lights had displayed. The cause of the failure was not yet determined. The local dealer and manufacturer were not yet contacted. The VIN was not available. The failure mileage was 83,000.
NHTSA complaint #11738463 — an unverified report by a vehicle owner.
ENGINE
I was driving on a main road at 55-60 mph with my daughter and grandchildren in the car and had a sudden loss of power. I was almost hit from behind. The check engine light started blinking. And the car went into limp mode. I had to limp it to the nearest place to safely get off the road so as not to put my family in any other danger.There is not enough shoulder on the road to pull over safely. It was very stressful. Was able to get it in someone's driveway and then eventually towed to Auburn,NY Hyundai/Chevrolet where it is currently. It would not turn over to start again. It does have battery power. I am waiting to hear from the service techs as to what they think is wrong. They advised me that there is a $199 per hour diagnostic fee. I also told them that we noticed metal flakes in the oil when we checked it. I feel I should mention that the vehicle went into limp mode a few weeks ago also and the dealership told me the knock sensor was bad. I had that replaced at that time.
NHTSA complaint #11737327 — an unverified report by a vehicle owner.
ENGINE
THIS IS AN UPDATE TO EXISTING NHTSA ODI COMPLAINT #11735718 2017 Hyundai Santa Fe Sport, TXXI Theta II engine defect. UPDATE: On May 7, 2026, Hyundai Case Manager acknowledged in writing "Your case is important to us" and "2.4L THETA concerns" for Case #42623761. This is written admission the vehicle has the TXXI defect covered by warranty extension to 120,000 miles. I gave Hyundai 48 hours to provide written authorization for oil consumption test per their TSB 22-EM-003H. After 3 days they are silent. They refuse email communication despite documented language barrier. Current Vehicle Status: - Active DTC P0010 causing loss of power and stalling risk - Oil Consumption: 1 liter per 600km, which is 3x Hyundai failure threshold in TSB 22-EM-003H - 95,772 miles, under TXXI 120,000 mile warranty limit - U.S. Spec vehicle covered by TXXI Warranty Extension Hyundai is violating Magnuson-Moss Warranty Act by refusing to honor written warranty for known safety defect. The P0010 defect causes sudden loss of power while driving. Requesting immediate NHTSA intervention to compel Hyundai to perform warranty repair.
NHTSA complaint #11736898 — an unverified report by a vehicle owner.
ENGINE
Immediately following the implementation of Service Campaign 9C2 and TSB 25-01-087H - ECU Update for THETA II Emissions Logic Improvement, the vehicle exhibits poor drivability (staggering/missing/hesitation) until the engine warms up. This is most noticeable just prior to the shift from first to second gear.
NHTSA complaint #11735995 — an unverified report by a vehicle owner.
ENGINE
COMPONENT FAILED: Theta II 2.4L GDI engine connecting rod bearings. Vehicle has 95,000 miles. Engine available for inspection in [XXX] . SAFETY RISK: Engine knock + limp mode at 1500 RPM caused sudden loss of power on highway. Oil consumption 1L/700km risks catastrophic engine seizure while driving. CONFIRMED BY DEALER: Independent service center confirmed DTC P0010 from metal debris. Hyundai Motor America Case #42623761 confirmed recall coverage but refuses remedy. INSPECTION: Manufacturer aware via Case #42623761. Local Hyundai dealers non-responsive. No police/insurance inspection. WARNING SYMPTOMS: Engine knock started at ~94,000 miles. Check Engine Light with DTC P0010. Progressive oil consumption. Limp mode activated at 95,000 miles. HYUNDAI VIOLATION: Hyundai confirmed via email they refuse to honor Safety Recall 162 / Service Campaign 966 Lifetime Warranty for VIN [XXX] despite all symptoms matching recall description. Request NHTSA compel Hyundai to authorize Bearing Clearance Test and engine replacement. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11735718 — an unverified report by a vehicle owner.
ENGINE
Hair line creak in oil pan. Creak has caused excessive oil consumption and leaks on pavement. Issue was confirmed by Antwerpen Hyundai and oil pan was replaced on 4/28/2026 at a cost of $520.00. As above reported to dealer. Problem started, 1st. noticed about 9 to 12 months.
NHTSA complaint #11734439 — an unverified report by a vehicle owner.
ENGINE
My ABS Lights the triangle with the ! In the middle goes in and off the down hill control light and the sweet control light all go on when the ABS light goes on my oil was completely dry had to add two quarts while the engine was ticking when started and when accelerating it was making a clicking noise I still had 3000 miles before needed an oil change but like I said it was bone dry and then the drivers seat was going back and not wanting to come back up I’ve only had the car 42 days and it’s having all kinds of problems
NHTSA complaint #11732824 — an unverified report by a vehicle owner.
ENGINE
The engine on my 2017 Hyundai Santa Fe sport was deemed defective according to Downey Hyundai. They ran a diagnostic test on it and it failed the test. They offered to replace it for me at no cost to me. On December 11, 2025 the engine caught fire while the service technician from Downey Hyundai was “test driving” it in a drive-thru of 7 Leaves. He was using my vehicle for personal use when the engine fire occurred. Both Downey Police Dept and Downey Fire Dept made reports. I did file a claim with my insurance company, AAA. On 12/8/25, the engine oil light blinked once very quickly on the dash and that was it. I took my vehicle to Downey Hyundai the very next day to have it inspected.
NHTSA complaint #11719454 — an unverified report by a vehicle owner.
ENGINE
Car is running out of oil quickly but there are no visible leaks. Have had the oil changed a couple of times since then and have had to add oil in between because the oil light comes on when I make turns. Had the oil changed at a local oil service station and they said it was almost empty.
NHTSA complaint #11715508 — an unverified report by a vehicle owner.
ENGINE
We have a 2017 Hyundai Santa Fe with 130k miles on it. It has the 2.4 engine with known manufacturing defects. We are the 2nd owner and timely & proper maintenance was completed on it since it was new. My [XXX] driver was operating the vehicle on Interstate 75 in Middle Georgia when the vehicle started running very rough, slowed down dramatically and the check engine light started blinking. She was blessed that a large truck didn’t run her over as she tried to move to the side of the roadway. We called a tow truck to take it to the nearest Hyundai dealership- ALM Hyundai of Warner Robins, GA. They inspected the vehicle and stated that the engine had messed up and they wouldn’t replace it since the vehicle had 130k miles and outside their window for 120k mile replacement. We purchased the vehicle from the original owner in 2022. We verified that it had timely and proper maintenance on it. We were also aware of a potential engine issue but verified with a Hyundai service advisor at Five Star Hyundai in Macon, Ga that the vehicle would be eligible for engine replacement if it messed up due to a manufacturing defect as long as proper maintenance was completed. We noticed that the vehicle was significantly burning oil at around 110k miles and regularly had to put oil in it to make sure it would not run dry. We did have the safety recall performed on it for the engine knock issue that Hyundai mandated. These vehicles are a major safety hazard on the roadway and these effected engines should be replaced by the manufacturer. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11712008 — an unverified report by a vehicle owner.
ENGINE
My vehicle was serviced for an oil change at my dealership today. The mechanics are concerned about too much oil consumption in between oil changes. They have no evidence of a leak. Prior to getting my oil changed, a red oil light appeared when I brake. The dealership had mentioned of related recalls for this problem for this vehicle model.
NHTSA complaint #11711410 — an unverified report by a vehicle owner.
ENGINE
Component: Engine (Theta II 2.4L GDI) / connecting rod bearing-related failure risk with abnormal internal oil loss. The vehicle is available for inspection upon request (engine, oil level condition, diagnostic history, and dealer records). Safety risk: While driving on the highway (approx. 70 mph), the vehicle displayed a low oil warning, and I experienced concern for potential engine seizure/stalling and sudden loss of power, which could cause a crash. I reduced speed and sought service. This condition presents an ongoing safety risk because sudden engine failure can occur without adequate warning. Dealer confirmation: The problem was confirmed by a Hyundai dealer. After a routine oil change, the low oil warning appeared within ~1,700 miles. A Hyundai service center inspected the vehicle and documented the engine was approximately 3 quarts low with no external leaks, indicating internal loss/engine deterioration rather than a leak. Hyundai then required additional steps (combustion chamber cleaning and monitored mileage), and the abnormal internal oil loss condition persisted. Manufacturer inspection: The vehicle has been inspected by Hyundai dealerships, and Hyundai performed campaign-related actions, including KSDS/ECM update (T3G) and later knock sensor replacement. No police or insurance inspection. No crash or injury occurred. Warning lamps/symptoms prior to failure: Prior symptoms included a Check Engine Lamp with DTC P1326 (KSDS-related) documented by Hyundai service in 2025, followed by continued abnormal internal engine condition. The low oil warning occurred while the vehicle was in motion (highway speed). The issue remains unresolved, and I do not feel the vehicle is safe to operate due to seizure/stall risk. Additional: I reported this as a safety defect because similar Theta II engine issues are widely reported and can result in stalling, seizure, or engine fire. Hyundai denied engine replacement assistance despite the documented condition.
NHTSA complaint #11708993 — an unverified report by a vehicle owner.
ENGINE
Vehicle: 2017 Hyundai Santa Fe Mileage at Failure: ~129,000 miles Issue Type: Engine Failure / Valve / PCV-Related Defect Manufacturer & Dealer Both Denied Repair My 2017 Hyundai Santa Fe suffered a sudden engine failure at around 129,000 miles. The Hyundai dealer verbally told me the failure was caused by a faulty PCV valve, which is a known issue in Hyundai engines and can lead to severe oil loss, crankcase pressure problems, and ultimately engine failure. However, the printed diagnostic paperwork they provided listed a different reason for the failure, and the descriptions do not match what I was told verbally. This inconsistency makes me believe the cause is related to a known Hyundai engine defect that the manufacturer is not acknowledging. I contacted Hyundai Motor America directly, provided documentation, and requested warranty or goodwill repair assistance. They denied the claim even though the failure was due to a defective engine component and not misuse. This engine failure created a dangerous situation and appears to be consistent with Hyundai’s history of valve, oil system, and internal component defects. Given the mismatch between the verbal explanation and the written diagnosis, I am concerned the dealer and manufacturer are avoiding responsibility for a known defect. I am requesting that NHTSA investigate Hyundai for potential PCV-valve-related engine failures and inconsistent denial practices.
NHTSA complaint #11703023 — an unverified report by a vehicle owner.
ENGINE
The engine of our 2017 Hyundai Santa Fe Sport has been significantly problematic since we first purchased the vehicle in 2017. These issues have been well documented by other Hyundai owners and have resulted in class action lawsuits. After purchasing our vehicle new from dealer, it began experiencing difficulties, consuming large amounts of oil, spewing smoke from the tailpipe, leaving metal shavings in the engine oil, failing to start, and at times going into a protection mode to keep the engine from further damage and restrict speed above 15 miles per hour. The vehicle had to be towed multiple times at our own expense. Hyundai delayed replacement of the engine for months resulting in thousands of additional miles being put on the vehicle under unsafe operating conditions. Hyundai reluctantly replaced the engine in February of 2024. What appears to not be well-documented in NHTSA complaints are the impacts of these engine issues to other Hyundai components and parts. Hyundai replaced our original engine but did not replace the engine’s catalytic converter. 20 months later, the check engine light has illuminated again as a direct result of oil sludge and buildup from accelerated oil consumption. In November 2025, the dealership identified the fault code P0420 for catalyst efficiency system below threshold. We have experienced a loss of acceleration, increased fumes, and decreased fuel efficiency as a result of the catalytic converter failure, and believe the vehicle is no longer safe to drive at high speeds on freeways. The dealership has confirmed damage to the catalytic converter and has quoted a replacement fee that is $5000, almost $1000 higher than other dealerships in our area. We asked for the dealership to submit a request to HMA for goodwill assistance and were denied on November 24th. We strongly believe that Hyundai is responsible for both the damage to the catalytic converter as well as the safety concerns caused by this issue.
NHTSA complaint #11701471 — an unverified report by a vehicle owner.
ENGINE
The contact's mother owns a 2017 Hyundai Santa Fe Sport. The contact stated that while the owner was driving the vehicle at an undisclosed speed, the vehicle stalled. No warning lights were illuminated. The contact stated that the vehicle failed to restart. The vehicle was towed to the dealer, where it was diagnosed with loss of compression in the engine. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. Additionally, the contact stated that the engine failure was a known failure. The manufacturer was made aware of the failure and a case was filed. The failure mileage was approximately 114,000.
NHTSA complaint #11701259 — an unverified report by a vehicle owner.
ENGINE
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
NHTSA complaint #11700398 — an unverified report by a vehicle owner.
ENGINE
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.
NHTSA complaint #11698836 — an unverified report by a vehicle owner.
ENGINE
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.
NHTSA complaint #11695915 — an unverified report by a vehicle owner.
ENGINE
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.
NHTSA complaint #11695055 — an unverified report by a vehicle owner.