The contact owns a 2014 Fiat 500L. The contact stated that while her daughter was driving 50 MPH, the vehicle started to lose motive power and failed to properly accelerate. The contact’s daughter pulled over to the side of the road, where the vehicle stalled. The service engine warning light illuminated on and off. The vehicle was driven to an independent mechanic to be diagnosed. The vehicle was diagnosed with transmission failure and the mechanic suggested that the vehicle be taken to the dealer. The local dealer was not contacted. The vehicle was not repaired. The manufacturer was made aware of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 60,000.