The contact owns a 1995 Jeep Wrangler. The contact received notification of NHTSA Campaign Number: 02V041000 (Parking Brake) however, the part to do the repair was unavailable. The contact stated that he had parked the vehicle in a parking lot with the parking brake set and the vehicle transmission was in neutral (N). The contact stated that when returned to the vehicle it had rolled down a slight incline and crashed into the back of another parked vehicle. The contact stated that the rear quarter panel on the passenger side of the other vehicle had been dented. The contact stated that there was only a small smear of paint from the other vehicle on his bumper. There were no injuries and no police were on the scene. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had experienced a failure. The failure mileage was approximately 86,000. Parts distribution disconnect.