2019 Hyundai Santa Fe POWER TRAIN,ENGINE

The contact owns a 2019 Hyundai Santa Fe. The contact stated that while driving approximately 45 MPH, the vehicle hesitated while accelerating with the accelerator pedal depressed and the RPM raised. The contact stated that the vehicle occasionally failed to start. No warning light was illuminated. Additionally, while driving at various speeds, the vehicle lost automotive power. The vehicle was taken to a local dealer, where it was diagnosed, and determined that there were metal shavings in the oil pan. Hyundai Eugene (89320 N Game Farm Rd, Eugene, OR 97408) was contacted; however, the failure was not identified. Upon further investigation, the Hyundai Blue Link App retrieved DTC associated with the Power Train EMS and Power Train TCU. The vehicle was not repaired due to the cost. The manufacturer was made aware of the failure, and a case was filed. The failure mileage was approximately 87,000.

Complaint: Safety Defect - Engine Failure Risk (Stalling/Fire) My 2019 Hyundai Santa Fe has the defective Theta II 2.0L Turbo engine (G4KH), subject of class action In re: Hyundai and Kia Engine Litigation and multiple TSBs. The engine has a known manufacturing defect causing premature connecting rod bearing failure, leading to catastrophic engine seizure. SAFETY CONSEQUENCE: This defect presents a clear, unreasonable safety risk: Sudden Stalling: Engine can seize without warning while driving, causing loss of propulsion and power steering/brakes, leading to a crash. Engine Fire: Failed engines can leak oil onto hot components, causing fires. MANUFACTURER'S INADEQUATE REMEDY: Hyundai's "Knock Sensor Detection System" software update (Campaign 966) only attempts to detect failure moments before it happens. It does NOT fix the underlying mechanical defect. The engine remains a ticking time bomb. PERSONAL EXPERIENCE: My vehicle has suffered multiple related failures (turbocharger, fuel injectors) costing over $5,700, confirming the powertrain's deterioration. I fear driving it, especially with my teenage daughter. The defect is well-known, yet Hyundai's settlements fail to protect subsequent owners like myself, leaving unsafe vehicles on the road. REQUEST: I urge NHTSA to investigate the ongoing safety risk these engines pose to all owners, compel Hyundai to issue a true safety recall for a permanent repair (e.g., engine long-block replacement), and mandate clear disclosure of this defect to all used car buyers.

The contact owns a 2019 Hyundai Santa Fe. The contact stated that while driving at various speeds, the vehicle lost motive power while depressing the accelerator pedal, with the check engine warning light illuminated. The vehicle was taken to a dealer and the turbo was replaced. The contact stated that months later, the vehicle hesitated and jerked while depressing the accelerator pedal with the check engine warning light illuminated. The vehicle was taken back to the dealer where a part on the transmission was replaced; however, the failure returned, and the check engine warning light illuminated. The vehicle was taken back to the dealer and the contact was informed that the transmission needed to be replaced. The contact took the vehicle to an independent mechanic and had the transmission replaced. The contact stated that months later, the vehicle began to sputter with an abnormal knocking sound coming from the vehicle. The check engine warning light returned, and the vehicle was taken to the nearest dealer. The vehicle was diagnosed with engine failure. The vehicle was not repaired and remained with the dealer. The manufacturer was not notified of the failure. The failure mileage was approximately 87,000.

I was driving home Friday August 29th 2025 around 10:30 am on I-70 W when I began to have trouble accelerating my vehicle. There were vehicles trailing closely behind me so I increased pressure on the gas pedal. I would feel my car forcibly trying to compensate and the RPMs on the vehicle increased significantly. The check engine light then illuminated and the car stedily beagan to decelerate although RPMS were increasing and the force on the gas pedal was at its maximum. I could no longer get past 30 MPH. The cars behind me had to quickly change lanes behind me to avoid rear end collision and I finally pulled over to the shoulder of the highway but it was a very narrow shoulder so my safety and the safety of those driving around were compromised because they could have easily resulted in a high speed rear-end collision that could have been fatal and the location of my car on the shoulder was not safe and I could have been side-swipped waiting for a friend to come get me and for me to move my car off hat narrow shoulder. I was frantic and very emotionally distressed by this incident because all the maintenance on the car was up to date and there was no check engine light on in the car prior to this incident. The unexpected and decelleration and inability to compensate on the highway was very unsafe. I have taken my car to the delearship and they have yet to address my engine issues or the safety concerns. The rep actually laughed while I was recounting the events. I also called hagerstown police department to have a police officer come out to the breakdown site because I did not feel safe but my frined arrived before the police.

We have had our vehicle for over 2 years with routine maintenance. On 1/25/26 We were driving home and oil light came on then check engine light. The oil pressure the issue.

I HAVE A BRAND NEW 2019 SANTA FE ULTIMATE 2.0T LEASED IN AUGUST WITH 1600 MILES AND I HAVE ALREADY HAD THE CAR IN TWICE WHERE THEY HAVE HAD TO RECALIBRATED THE TRANSMISSION. WHENEVER I WAS AT A STOP OR WAITING TO MAKE A TURN I WOULD PUT MY FOOT ON THE GAS PEDAL AND THE RPMS WOULD GO UP BUT THE CAR WOULDN'T MOVE. I WAS ALMOST REAR ENDED A COUPLE OF TIMES BECAUSE THE CAR WOULDN'T GO INTO GEAR AND MOVE WITH THE GAS PEDAL PUSHED ALL THE WAY DOWN TO THE FLOOR AND THEN ALL OF SUDDEN THE TRANSMISSION WOULD SHIFT INTO GEARS. THIS SHOULD NOT BE HAPPENING TO A BRAND NEW CAR! LOOKING AT DIFFERENT MODELS THIS SEEMS TO BE AN ON GOING PROBLEM WITH HYUNDAI. I HAVEN'T BEEN ABLE TO ENJOY MY CAR BECAUSE IT'S BEEN IN THE SHOP. THEY FIX IT AND IT WORKS FOR A WEEK OR SO AND THEN IT HAPPENS AGAIN. SOMETHING IS DEFINITELY WRONG! I WAS TOLD IF IT HAPPENS AGAIN THEN THEY WILL CALL THE MAIN HEADQUARTERS. THEY SHOULD BE DOING THAT ALREADY TO FIND OUT HOW TO FIX IT ONCE AND FOR ALL SO I DON'T HAVE TO KEEP COMING BACK. I HOPE YOU WILL LOOK INTO THIS MATTER.

I BOUGHT SANTA FE 2019 LIMITED FWD, IT HAS AN ISSUE WITH ACCELERATION, IT HESITATES AROUND 2000 RPM, IT CREATE A BIG ISSUE WHEN I CHANGE LANE TO OVERTAKE OR DRIVING TO UPHILL, I HAVE TO PUSH ACCELERATION PADEL REALLY DOWN TO KEEP GOING. IT JERKS SOMETIMES. I TOOK TWO HYUNDAI DEALERS FOR CHECK AND BOTH SAID NOTHING WRONG WITH CAR, THEY DID NOT FIND ANY CODE OR ISSUE. IT IS SO FRUSTRATING SOMETIMES. MY 12-YEAR-OLD PILOT HAS A BETTER RIDE AND PERFORMANCE THAN 2019 SANTA FE. THIS IS MY FIRST HYUNDAI CAR AND I PAID A LOT OF MONEY . I LIKED THE INTERIOR, INFO SYSTEM, AND EXTERNAL LOOK. LOOKS LIKE TO ME ISSUE WITH TRANSMISSION GEAR SHIFTING