Problem 1. Both curtain airbags on the passenger side deployed while no one was sitting in those seats, no injuries sustained to anyone. This happened one time as it happened in a car accident, nothing indicated that the air bags were on or active at the moment. Problem 2. ABS system failure has caused the brakes on the prius to lock and not work while driving, almost causing an incident. The car has not been driven since for the fear of that happening again. The vehicle has been seen by a mechanic to determine it is the abs system. The ABS light has been on as well, it appeared a couple of weeks before the brakes locked up back in March of this year.