The contact owns a 2016 Hyundai Accent. The contact stated that while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The contact stated the vehicle went into LIMP Mode. There was no warning light illuminated. The vehicle was towed to the residence. The vehicle was then towed to an independent mechanic, where it was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 180,000.