The contact owns a 2010 Honda Accord Sedan. The contact stated while driving approximately 35 MPH the vehicle lost power and began to fall out of gear from drive to first gear, additionally the contact said he lost reverse gear. The contact stated no warning light was illuminated. The contact drove the vehicle to his residence and placed the vehicle in park (P) and the vehicle rolled forward and crashed into the front end of another vehicle. There was damage to both vehicles' bumpers and hood with scratches and dents on both vehicles. The vehicles were drivable. The contact had taken the vehicle to a local dealer. The contact had the vehicle towed to a dealer who was unable to have the failure diagnosed. The vehicle was not repaired. The contact had researched online and related the failure to NHTSA Campaign Number: 11V395000 (Power Train). The manufacturer had been informed of the failure. The failure mileage was approximately 200,000.