The contact owns a 2005 Nissan Frontier. The contact stated that while driving at 50 MPH, the vehicle came to a complete stop and then hesitated to accelerate. Additionally, a burning odor was detected. The vehicle was taken to the dealer and diagnosed with transmission and radiator failure. The transmission and radiator needed to be replaced. The vehicle was not repaired and remained at the dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 88,700.