The contact owns a 2013 Hyundai Santa Fe Sport. The contact stated while driving at an undisclosed speed, the accelerator was depressed; however, the vehicle failed to accelerate as intended. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic where it was diagnosed with engine failure and waste gauge. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The contact stated that the original engine was previously replaced under an unknown recall repair in 2021, however the failure reoccurred. The contact stated that the mileage of the new engine was approximately 20,000. In addition, the contact stated that while driving at an undisclosed speed, the doors were independently unlatched. The contact stated that the driver’s side rear door independently unlatched and independently opened. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was made aware of the failure. The failure mileage was approximately 111,000.