What 493 owners told NHTSA about the 2014 Hyundai Santa Fe Hybrid Hev

We are the original owner of a 2014 Hyundai Santa Fe. The vehicle is experiencing issues from internal engine oil consumption caused by a manufacturing defect in the GDI powertrain. In 2023, while driving under normal operating conditions, the vehicle began severely jerking, shuddering and hesitating during acceleration. This hesitation and sudden drop in power creates a severe and immediate traffic hazard, as the vehicle loses acceleration capabilities unpredictably while driving, merging, entering a highway or crossing intersections. I have since experience low oil volume due to this systemic oil consumption. On April 7, 2023 while I was under the 100,000 mile factory warranty (at 99,644), the issues were reported to the dealership but they found no issues. Since then the engine light come up regularly and we must add or change oil soon. On June 15, 2026 we took it back with the same issue and we have been told after checking it and filling it up we must repeat the process from 2023, drive it for 1000 miles without changing or adding oil, even if it dries up. This will create a safety hazard not only for the public but for my family. Now we are told the engine needs to be replaced but since we're out of warranty, we must pay $21,000. We were under warranty when we reported the issue and they purposedly led us out knowing the issues were happening to other Sonata and Santa Fe models. Now we are left with a dangerous vehicle which we cannot in good faith sell to any other family.

NHTSA ODI 11744914

My car was in shop for Smog inspection and failed. Mechanic told me that the most likely reason was that the engine has issues related to failing crankshaft position sensor which triggered the check engine light. He further explained that the engine with this condition will have abnormal oil consumption. My experience is that is exactly what I wondered. No smoke in the exhaust, no oil leaks under the hood and no oil on the parking space at home nor work. Mechanic recommended I take the car to Hyundai dealer in Folsom. The service department there diagnosed my car and did not find fault with crankshaft position sensor but did find that there is a problem with timing mechanisms. They also said that the engine has difficulty starting, which I never experienced in over 50,000 I have driven it, save the time of battery replacement about 2 years ago. I decided to take my car back to my mechanic where he diagnosed it with timing issues. The abnormal engine noise was accounted for as a link to timing. In the interim I drive a rental at the rate of about $65.00 /day. I m in a quandary; if my mechanic repairs the timing issues, which may not be under warranty, does that invalidate the existing engine warranty? If I can get the warranty to cover the ongoing issues, we can save ourselves wasting time and money. If safety concerns are a priority, which is not, then we cannot sacrifice safety in the interest of celerity. In the meantime, my family are in the crossroads and I cannot accept that.

NHTSA ODI 11742287

Driving to work at 0730 on 20 may, i put my foot down to accelerate from 40mph and nothing happened, i tried again thinking foot placement and the engine died. All ligjts went out, engine turned off and i free coasted for 100 -150yards. Once stopped i mangaed to get the hazard lights on, and get out the vehicle. I was 30yards from traffic lights on a 3 lane road. Once pushed from the road, the car showed lights and internal radio etc, but no noise on the push start. There was no noise from the engine prior to this, there was no dash lights showing issues and no warning. I was then towed 4hrs later to a garage where the diaognostics show engine failure and new engine required. A service 4000k miles ago and the car had used 5.5quarts of oil. All eveidence ive mainated the vehicle is online. 1st garage advices not driveable due to 10ks of miles of damage.

NHTSA ODI 11739568

My engine failed and was diagnosed as needing to rebuilt or replaced by the dealership. During the pandemic it was hard to get parts so they rebuilt it. At first it was missed diagnosed because it was a 3.3l V6 and only the 4 cylinder engines were on recall. I had check engine lights on all the time. I paid for repairs that only masked the problem for a short time. It was such a problem I had to get a waiver to register my vehicle. After having more problems with my engine. Hyundai of Kennesaw confirmed my engine needed to be replaced they actually requested Corporate to approve an engine replacement for my vehicle in 2021. It was denied. So I paid for the rebuild. In August of 2025 i sent a letter extending the warranty which covered my vehicle engine rebuild. Hyundai denied that claim Jan 2026.

NHTSA ODI 11711112

While driving at approximately 70MPH on the highway, my 2014 Hyundai Tucson Limited suddenly locked up with no warning lights, no noise and no prior symptoms. The engine completely seized, causing immediate loss of power. I was barely able to coast off the highway exit to a final stop on the feeder shoulder, in a desolate area. The vehicle has always been properly maintained and is in excellent condition. Upon research, I learned that Hyundai has known of internal engine defects caused by metallic debris left from manufacturing since 2010, which can cause bearing failure and engine seizure. My Tucson's failure matches the same pattern described in Hyundai's Theta II engine recall and warranty extension campaigns. This sudden failure created an extremely dangerous situation at highway speed and possibility of injury while being stranded on an open road. Many owners, myself included, were never properly notified of the risks. I am filing this report because this incident represents a serious safety defect and potential recurrence among similar vehicles that may not yet be covered by recall. I respectfully request that the National Highway Traffic Safety Administration investigate this issue and ensure Hyundai expands its recall and warranty coverage to include affected 2014 Hyundai Tucson Limited vehicles exhibiting this defect that was well-known to the Hyundai Corporation. Date of Incident: October 23,2025 in Houston Texas. Vehicle towed to Hyundai dealer which diagnosed Engine Seized and currently awaiting Warranty Extension Approval (TXXC/TXXI)

NHTSA ODI 11697541

The engine has been running rough for awhile and emissions light came on. My car was having problems accelerating, 2 years ago the light came on but didn’t stay on so the dealer couldn’t diagnose problem.

NHTSA ODI 11688912

My daughter owns a 2014 Hyundai Santa Fe GLS, which is currently experiencing internal engine failure and abnormal engine noise. These issues directly align with Hyundai’s notification regarding the extended warranty coverage for vehicles equipped with the 3.3L Lambda II GDI engine, which may experience abnormal engine noise or damage. Hyundai has acknowledged these concerns and extended warranty protection for engine repairs or replacement. The Hyundai Holler dealership in winter park Florida. recently inspected the vehicle and reported a critical failure requiring immediate attention. The recommended service included: Timing job (all CVVTs, intake, camshaft, chains, guides, tensioners) Both valve cover gaskets and RTV replacement ( This is the internal parts of the engine) The estimated repair cost was $6,723.92. This recommendation reflects the exact type of engine-related failure covered under Hyundai’s extended warranty for this VIN. It is both unreasonable and disappointing that my daughter was presented with such a significant repair estimate for a condition Hyundai has already committed to covering. For context, my husband is a certified technician, and we have carefully reviewed the inspection details. The diagnosis provided by Holler Hyundais service department is consistent with the warranty-covered issue. Therefore, this repair should rightfully be processed under Hyundai’s extended warranty program.I must also share that my daughter a single disabled mother of three with limited resources and income. The dealership’s approach in presenting her with an astronomical repair bill—without recognizing the warranty coverage—causes unnecessary stress and financial hardship Mr Jesse Cappiello Service consultant. Refuses to accept this as warranty, by stating the warranty is only for Rod bearing failure. When the warranty clearly states engine failure I have attached the warranty info for your review.

NHTSA ODI 11687469

Bien,mi auto tuvo varios problemas al mismo tiempo: 1-falla en todo el sistema eléctrico,aire acondicionado,control de tráfico ambas partes, Power steering,ABS,Pérdida de potencia en el motor,problemas con el receptor de la llave remoto,tiene un problema eléctrico sin precedente todo ocurrió de la nada,todo ocurrió un mismo día cuando íbamos camino a una excursión mi familia y yo estuvimos en un gran riesgo,todos los componentes han sido inspeccionados y no he podido aún arreglarlos porque se necesita el consecionario de este automóvil para descubrirle las grandes fallas que presenta,aún tiene 3 señales en el tablero, check Engine, Power String, ABS, todo prendió después del problema

NHTSA ODI 11684072

In relation to this incident, approximately 3,00 miles after an oil change, the engine oil drain plug fell out and caused all oil to leak and cause engine damage. Engine oil change was at approximately 125,000 miles. Drain plug fell out at approximately 128,000 miles. No warning lights or symptoms were present prior to vehicle shutting off and dying while driving. Vehicle was then towed to shop who previously did oil change. Shop confirmed drain plug was missing and oil level was empty. I am the manager of this shop submitting this on behalf of the customer with this vehicle. We are aware of the ongoing concerns in relation to case DP22-003 and would like to submit this information as further evidence for this case

NHTSA ODI 11683753

Engine suddenly failed as I was sitting at a stop light and now is making a rattling/knocking noise

NHTSA ODI 11679943

I was driving my daughters to school and the vehicle made a loud squeal and a subsequently a continuous clicking noise. I did not have any warning of the vehicle malfunctioning. There was no check engine light, no loss of power, or anything related to an impending failure. Upon this happening I was able to quickly get the vehicle moved as I was in the middle of the road with people around and lucking was not hit as I immediately stopped. I was close to home and was able to get the vehicle back to our home. Upon speaking with a Hyundai dealership they made me aware of a “silent recall” on many motors within the Hyundai failure due to internal failures. The vehicle was towed to the dealership and inspected and confirmed to have been linked to the engine failure. Hyundai is now stating that due to me being the second owner of the vehicle I am not apt to the extended warranty and there is no notice on any of the public facing knowledge to any of this information. I have gone through almost 2.5 months of back and forth with Hyundai case managers & the Attorney general.

NHTSA ODI 11670443

Loss of acceleration and stuttering when I was trying to get up to speed on the interstate going up a hill. Instantly blinking check engine light. Won't go above 2000rpm or 60mph. P1326 code read glow relay short circuit

NHTSA ODI 11650108

My car has a known oil consumption problem that has not been recalled on the 2014 vehicles. I have been dealing with issue for the 15 months. Getting the run around because call is out manufacture warranty but when problem first started was still under warranty. I have a extended warranty but

NHTSA ODI 11647034

While driving we notice an engine knock, particular when the car reached 2000 RPM or more. the car suddenly lost power and would not exceed 40 mph. We took the vehicle to a mechanic and were informed that it needed the engine replaced.

NHTSA ODI 11646243

My steering would work while I was driving with my kids in the car, my breaks were barely working, the hood started smoking and something under the hood in the engine caught on fire, there was a horrible smell when I was breaking and the breaks would jolt. The engine and cooling was not turning off even with my key taken out, the fan engine was running nonstop no matter what, smoking etc

NHTSA ODI 11645773

Engine failed mixing oil and coolant

NHTSA ODI 11643152

Crack was found in oil pan during regular maintenance. The engine was replaced by Hyundai and now has around 60,000 miles on it. At my expense, the oil plan was replaced.

NHTSA ODI 11631370

Check engine light came on and acceleration failed. Hyundai dealership indicated there are no valves in the intake and exhaust ports.

NHTSA ODI 11630088

The engine went out while driving on the freeway. All maintenance has always been done and it was burning oil.

NHTSA ODI 11630171

The contact owns a 2014 Hyundai Santa Fe. The contact stated that upon starting the vehicle, the vehicle made an abnormal knocking sound. There was no warning light illuminated. Additionally, the contact stated while driving at various speeds and depressing the accelerator pedal, the vehicle sputtered and hesitated while responding. The vehicle was not diagnosed or repaired. The dealer and the manufacturer were not notified of the failure. The failure mileage was approximately 63,547.

NHTSA ODI 11622994

I have been notified that I am in need of a new engine due to possible complete engine failure which is on the near horizon. I have the Lambda II V6 3.3L engine. It is knocking, making noises, hesitates to go, feels like it will stall out at all speeds, and is scaring me terribly. My certified local mechanic replaced a part for failed emissions, which cost almost $900. However the check engine light came back on. They stated I must go to Hyundai because they did not believe they could fix the car as it required a new engine. I took it to my Hyundai dealer, where my contact stated yes it should be covered as it was having the issues as have been identified with this engine. He later came back and stated his managers would not let him put through the claim, and said my estimate was now a whole new timing system at a cost of $4600. My car has less than 83,000 miles on it. My previous Hyundai is still running at 200,000 miles, so yes, I take good care of my vehicles. This is an early equipment failure on the part of Hyundai and Kia that they are now owning up to. I drive on busy 4 lane local roads, and I am afraid of this engine failure. Also, when I did take my Hyundai into the dealership, they did not have the ABS part needed for the recall. I was told it would be in within a couple of days. I have not been contacted back by them if it is in and to schedule me an appt. This is a huge failure in itself! I did make a claim to Hyundai Customer Care, that stated it was out of warranty. Today, I have my car at a 3rd automotive mechanic in the area to get a 3rd opinion. He has a minor timing issue code P0018 that emissions still kicked out once I finally got it passed. I am waiting to hear what he has to say regarding my engine with no beforehand knowledge of what I know so far. If my car catches fire or breaks down or seizes up on a busy road, I don't think that will go safely at all. I am very concerned for my safety and that of others.

NHTSA ODI 11618527

My 2014 Hyundai Sonata is subject to the recall campaign for the 2.0L and 2.4L Gasoline Direct Injection (GDI) engines. Since June 24, 2024, the vehicle has exhibited multiple issues: 1. Check Engine Light: The check engine light is continuously on and blinking, signaling that the vehicle is unsafe to drive. Diagnostic codes retrieved include P0140 (O2 Circuit), P0172 (System Too Rich), and P0126 (Knock Sensor Circuit). While the P0126 code pertains to the knock sensor, there has been no definitive diagnosis to determine if the issue is isolated to the sensor or indicative of a deeper engine problem. 2. Engine Power Issue: The car experiences jolts and kicks back during acceleration, along with intermittent lack of power. Furthermore, an independent mechanic performed some tests on the engine, determining that it runs too rich. After the second white smoke through exhaust incident, the vehicle struggles, and often does not reach, 60 MPH; aligning with "Reduced power and/or hesitation" (case #2) in the recall campaign. 3. Exhaust Smoke: On two separate occasions, within a month, white smoke has been observed exiting the exhaust. Engine oil has been below 3/5 empty each time. No oil leak found; must be exiting through exhaust. Despite qualifying for the recall, the Hyundai Colorado Springs dealer has refused to inspect or replace the engine as required. These ongoing issues pose significant safety risks, including the potential for unexpected engine failure and loss of power while driving.

NHTSA ODI 11618243

On [XXX] I was driving down a busy 4-lane in Los Angeles and my engine suddenly died. There were no warning signs like indicator lights or warning noises. It was traumatic and frightening and I thought I was going to be struck by a car or truck. I had little control over the car-it would not accelerate to get out of the road lane. I was coasting, stopped half toward the side of the road but still sticking out in the road lane and was terrified I'd get hit by another vehicle from my back driver's corner. Cars and trucks that were traveling at normal speed were trying to avoid a collision with me and swerving around me, putting myself and others at risk for serious injury or death. I had had all the systems updated 2 years ago at a HMA, Hyundai dealership as I was directed, which included the KSDS (Knock Sensor Detection System). Dealer said it was to warn me of possible engine noise and issues. I never got any warning. I was NEVER told by anyone including Hyundai or any regulatory agency that the engine could suddenly fail as I'm driving the car OR I WOULD NOT HAVE BEEN DRIVING IT! There were never any warnings at that time or any time that anything was wrong with the vehicle. The car was towed to a Hyundai dealership and they diagnosed the problem on 8/28/2024 as a failed engine bearings clearance test at 63Kmiles. I kept all maintenance records, all done timely and properly with full synthetic oil. The components were assessed by the Hyundai dealership in communication and with guidance through HMA, Hyundai Technical /Techline confirmed failed engine bearings clearance test. My engine was not making any noises beforehand at all, and no engine warning light or sounds gave any warnings to be cautious or do anything other than drive normally. I was told I need an engine replacement. A Prior Approval for the engine replacement was started on 8/28/24 and sent to HMA, Hyundai. 9/17/2024, I still don't have engine replacement, dealer refuses to give records. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ODI 11615061

Engine was replaced in Feb. 2020 as part of the 162 engine recall. Car engine completely shuts down while driving and cannot be restarted for 20 or so minutes. This leaves me stuck in traffic with no ability to move the car. The new engine only has 40,000 miles on it. Dealership first said it was an issue with the engine and valves but when I wanted them to pay, they said the car is fine and passes all inspections. The check oil light and engine light come on when the engine stops, but they are not on prior to the engine stalling. I have made three visits regarding this - 1 to my personal mechanic and two to the Hyundai dealership. I filmed a video of the stall but it is too long to upload.

NHTSA ODI 11613852

vehicle was driving then all of a sudden there was an excessive amount of white smoke coming out of exhaust Engine was making a clicking sound before like a card in spokes on a bike and has been excessively consuming oil recently Auto shop discovered that a piston came loose and was rattling around the engine until it eventually shot through the engine

NHTSA ODI 11607113