I have a 2008 Prius. This has happened to me now for the 3rd time - first 2 times, Dealer said battery was defective, 3rd time, they tell me "there is nothing wrong with the car". I have had Toyota's all my life and loved them, but am thinking of filing a Lemon Law issue on this one if it happens a 4th time. AAA is getting tired of coming to jump start my car!