I purchased a new Toyota Prius in July 2008. My driveway is on an upward incline. When I apply the parking brake, select 'Park' and turn off the ignition the car rolls back - approximately 1/2 a road-wheel revolution. My house is on a hill approached by an unmade road (with several potholes). When driving downhill, if I apply the brakes and hit a pothole simultaneously - the stability control kicks in but the brakes release. In an emergency braking situation the brakes release at the instant the car comes to rest resulting in the car further travelling forward for a short distance. I have come to live with these characteristics as my dealer can find no malfunction but in view of the recent recalls, I reported the problem to Toyota HQ. They responded by saying there was no brake problem with the 2nd generation Prius and therefore no fix was available. However, off the record, the Customer Relations representative confided that I was the third person that day to report similar braking situations with a 2nd generation Prius. I welcome your comments.