2025 Hyundai Santa Fe Hybrid

My 2025 Hyundai Santa Fe Hybrid has experienced repeated, dangerously abrupt power loss while driving at highway speeds, causing the vehicle to go into "limp mode" without any warning or prior indication. This safety hazard occurred on three separate occasions: First Incident: 7/29/25; Mileage: 9,205. Situation: While traveling at 70 MPH on the interstate, the vehicle suddenly decelerated to 35 MPH and entered "limp mode" without any warning lights or notifications. Dealer Repair: Replaced ignition coil assembly (Parts: 27301R1H, 27301-2M417). Second Incident: 8/27/25; Mileage: 12,898 Situation: While accelerating to 65 MPH on the interstate, the same loss of power and abrupt forced deceleration occurred, again with no warning. This sudden loss of speed created a serious safety hazard for me and other drivers. Dealer Repair: Replaced fuel pump & O Ring Assy-High Pressure (Parts: 35326-2M500, 35305-2m414 LH). Third Incident: 9/25/25; Mileage: 14,830. Situation: Traveling at 70 MPH on the interstate, the car abruptly decelerated, again entering limp mode. This caused surrounding vehicles to swerve to avoid rear-ending me, putting myself and others at risk. Dealer Repair: Replaced High Pressure Sensor (3534202M400), Packing Fuel Pump (31115-0W000), and Fuel Pump and Tube Assy (31119-L1400). In all three cases, there was never any warning light, check engine notification, or app alert before the incident. Hyundai and my dealership confirmed and replicated the issue during each repair. I have reported the vehicle to the Texas DMV, Hyundai and the dealer.These recurring “limp mode” incidents have repeatedly jeopardized my safety, my family’s safety, and the safety of the public due to the sudden, unanticipated loss of power at high speeds. Since the underlying issue persists and has required three separate major repairs, I am fearful for my safety while operating this vehicle and believe it constitutes a serious safety defect needing federal investigation.

Our car had 2149 miles on it. Engine started to stalled on [XXX] on [XXX] from OKC to Tulsa. We made it to Tulsa. The car was towed to Tulsa Hyundai dealership on 12/25/2024. After diagnostic on 12/26/24, we were told the car had bad gas. The dealership performed the necessary work including replacing 4 fuel injectors in order to fix the problem. It cost $3991.52 and it took a week. We were told since this was not a manufacturer problem that we are responsible for the repair. We paid for the repair. We always get our gas from Costco. So we filed a report with Costco stating that we got bad gas from them. Costco turned it into their adjuster at Gallagher Bassett. He investigated and told us that his findings indicated that Costco did not have bad gas in the month of December according to their quality reports. No other cars filed complaints regarding gas issue. Our claim was denied. The question remained where the bad gas came from. Was it truly a bad gas problem or did the car have fuel injector issues and that bad gas was a cover up. We bought a new car, we purchase gas from a reputable company and we ended up with this problem that we were responsible for through no fault of our own. We are filing a report to see whether there are other cars of this model that had similar issues. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)