Power Train owner reports
Based on 3 owner reports that included mileage.
| Problem | Severity | Lower mileage | Middle mileage | Higher mileage | Relation to your mileage |
|---|---|---|---|---|---|
| Power Train owner reports | Critical severity | 50,441 mi | 100,000 mi | 104,500 mi | Reported mileage range is unknown |
Check this specific car
- 1Ask the inspector to test the named system and note any warning lights, noises, leaks, or stored codes.
Sources and limits
Source recordEvidence: Medium confidence
The records describe a possible fatal outcome.
“THE CAR HAS SHIFTED A LITTLE ROUGH ABOUT A WEEK AFTER BUYING THE CAR AND HAS GOTTEN TO THE POINT IT LUNGES YOU FORWARD. IT SHIFTS SO ROUGH I HAD TO GO TO THE ER FOR PINCHING A NERVE IN MY NECK. *TR”
Source recordEvidence: Medium confidence
The records describe a possible fatal outcome.
“COMPLAINT SUMMARY: [XXX] / ENGINE THERMAL FIRE RISK / WARRANTY DECEPTION My 2019 Hyundai Santa Fe (2.4L GDI Engine) is experiencing severe powertrain degradation under the known Theta II engine defect class-action framework. On November 7, 2025, the vehicle logged a Permanent Diagnostic Trouble Code (DTC) P1326 via an independent scan, indicating catastrophic internal rod bearing wear. On XXX, the vehicle was brought to Hyundai of Milledgeville for safety recall verification. Instead of executing the mandatory corporate-directed Bearing Clearance Test (BCT) to replace the failing engine block, the service department committed technical campaign malpractice. The technician forced the 9C2 ECU Software Update directly over the locked mechanical fault to suppress the dashboard warning lights and alter the vehicle's ROM ID parameter limits. When caught via a photograph of their active GDS diagnostic tablet showing 7 historical system faults, the service manager provided a truncated printed report hiding Page 1 and omitting the critical P1326 powertrain code count to evade a warranty engine replacement. Due to these unmitigated delays, the vehicle has suffered severe consequential safety damage. The advanced engine degradation and oil consumption have flooded the exhaust system, melting the catalytic converter substrate and triggering a new DTC P042000 (Catalyst Efficiency) fault immediately after the dealer visit. The extreme engine vibrations have also damaged the transmission's torque converter clutch (DTC P074100). The dealership refused a service loaner and knowingly sent a disabled consumer and an elderly passenger away in an active, failing vehicle that presents a sudden stall-on-highway hazard and a severe thermal exhaust fire risk under extreme summer heat conditions. Hyundai Motor America Corporate has failed to provide emergency towing or alternative mobility accommodations despite a registered corporate case file. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)”
Source recordEvidence: Medium confidence
The records describe a possible fatal outcome.
“My 2019 Hyundai Santa Fe 2.4L (VIN: [XXX]) is experiencing a severe safety defect involving rapid engine oil starvation. The vehicle recently failed an official oil consumption test conducted by Fred Beans Hyundai of Abington, where it was documented that the engine consumed 1 quart of oil in just 881 miles (PA Request #XXX). This vehicle is equipped with the Theta II engine, which currently has active warranty extensions (TXXC and TXXI) specifically covering connecting rod bearing failure. Despite the documented severe oil loss—which is the primary known cause of connecting rod bearing wear and sudden engine seizure—Hyundai Corporate (Case #XXX) is refusing to evaluate the vehicle under these warranties. They have improperly classified my claim as a denied "goodwill" request and are refusing to perform a connecting rod bearing clearance test to determine if the bearings have been damaged by this starvation. Because Hyundai refuses to perform the required diagnostic safety protocols, the vehicle must be driven in an oil-starved condition. This poses an imminent and severe safety risk of sudden engine seizure, stalling, and complete loss of motive power at highway speeds without warning, which could result in a catastrophic crash. The manufacturer is ignoring their own failure thresholds and putting driver safety at risk. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)”
Source recordEvidence: Medium confidence
The records describe a possible fatal outcome.
“On March 04, 2026, I took my 2019 Hyundai Santa Fe to the local dealer for oil change service. As part of that service visit, they performed Hyundai recall 9C1 which was supposed to lower tailpipe emissions. The next morning, and ever since, my vehicle ran differently. The engine had several 1000rpm surges and was sluggish at other times. This behavior has continued. Particularly when I first start out in the morning and the engine is cold. Never after the engine is warmed up. A visit to the Hyundai forum shows a growing list of other Hyundai owners who are experiencing the same issues. This recall is defective and should be corrected.”
Source recordEvidence: Medium confidence
The records describe a possible fatal outcome.
“In December 2025, a Hyundai dealer performed Service Campaign 9C2 (TSB 25-01-087H), an ECU software update for the 2.4L GDI Theta II engine, during a routine annual NY state emissions inspection. Immediately following this update, the vehicle began exhibiting an RPM flare of approximately 1,200-1,500 RPM during upshifting under light acceleration. This behavior did not exist prior to the update. The condition occurs when ambient temperature is above 50°F and the vehicle has been parked 2+ hours after a prior drive. No warning lamps or fault codes have been present at any point. The issue has been confirmed across four dealer visits at two Hyundai dealerships over five months. Attempted remedies included transmission ECU updates and adaptive resets — none resolved the condition. On the fourth visit, the technician personally experienced the issue and identified reinstalling the pre-update ECU calibration as the likely fix, but stated the prior software version was unavailable. The repair order was nonetheless closed as "vehicle operating as designed." The case has been escalated to Hyundai Motor America National Consumer Affairs and forwarded to Hyundai engineering with no resolution to date. Multiple other 2019-2020 Santa Fe owners report identical post-9C2 symptoms on public forums, indicating a pattern associated with this campaign's ECU calibration. The unexpected RPM surge and erratic shifting during acceleration creates an unpredictable driving experience that could cause hesitation in traffic situations requiring smooth acceleration.”
Source recordEvidence: Medium confidence
The records describe a possible fatal outcome.
“Vehicle Information: 2019 Hyundai Santa Fe Mileage at failure: approximately 109,000 miles Manufacturer: Hyundai Motor Company The vehicle experienced a complete failure of the automatic transmission system. The failed component is available for inspection upon request. At approximately 98,000 miles, the vehicle’s check engine light illuminated. I brought the vehicle to an authorized Hyundai dealership for diagnosis while it was still within the 100,000-mile powertrain warranty period. The dealership inspected the vehicle and advised that no issue was found, and no repairs were performed at that time. Approximately 11,000 miles later, the vehicle experienced severe transmission problems, which progressed to complete transmission failure at approximately 109,000 miles. Safety Risk: The transmission failure resulted in a sudden loss of power and reduced vehicle operability while driving. This condition presents a potential safety risk to the driver and surrounding traffic, particularly during normal roadway and highway use. Prior Inspection / Diagnosis: The issue was not identified or reproduced during the dealership inspection at approximately 98,000 miles when the check engine light was present. Other Inspections: The vehicle was inspected by a Hyundai dealership at approximately 98,000 miles. No inspection by police, insurance representatives, or manufacturer engineering personnel has occurred since the transmission failure. Warning Signs: Check engine light illuminated at approximately 98,000 miles Vehicle was taken to dealership for diagnosis at that time No specific transmission warning messages were displayed Dealership reported no issue found Maintenance History: The vehicle has been regularly maintained with oil changes performed approximately every 5,000 miles. Maintenance records are available for review upon request.”
Source recordEvidence: Medium confidence
The records describe a possible fatal outcome.
“we took it in to be looked at after it had a o2 sensor go bad I changed the sensor and checked fluids I noticed the oil was a touch low and it had metal on the dipstick. I took in to dealership for repair / replacement and Hyundai denied the claim. Even after I have video proof from the dealer technician saying there is metal and bearing material in the oil. I took it to another dealership and they found metal in the oil control valve and still denied it. We got the car back because we were not provided a loaner or a rental. I called back in with concern that the car had a weird burning smell and the car would die. Then it started sounding weird as well. Then called again Saturday because I checked oil and it had fuel smell in the oil. Now today it left my family stranded on the highway. I have th 100,000 mile ten year warranty and the car is only at 83480 miles now when this all started it was at 82000. I have expressed my concern of safety before it finally left my family vernable to be injured in the lane that it died in This afternoon. Many denied claims and now very dangerous situation that was preventable and could have cause fire or death. I brought to manufactures attention early to prevent a accident happening. I was denied all the way through the process .”