My 2008 Nissan Altima, when parked on a slight incline rolled independently and collided with and damaged a parked vehicle. The car was in park and locked and I was walking away when I noted that the vehicle was moving. Following the crash I unlocked the car, started the car and moved it from the scene. I have since had it examined by the Nissan dealership. They found no defect with the transmission, brakes or other systems. They said that there were 2 possible explanations. The first that the car was not properly set into park and that the slight incline kept the drum of the brake moving such that it didn't set. The second is that they that they had seen this type of incident in cars with the intelligent keys. The car can be stopped when the car is still in gear and since there is no key to remove there is no safety feature to prevent someone from leaving the car in gear and leaving the vehicle. They suggested that I always use the parking brake. Something that I intend to do. I was not in the car and there was no one in the vehicle that my car hit however, I would like to lodge a complaint for the record and request that there be some sort of review of cases like this.

- Dover, MA, USA