One problem related to starter has been reported for the 2009 Toyota Prius. The most recently reported issues are listed below.
The contact owns a 2009 Toyota Prius. While driving 2 mph in reverse, the contact shifted the vehicle into drive and noticed that the vehicle was still reversing. The vehicle was then shifted back into reverse and then back into drive before the vehicle would drive forward. The failure has occurred on three different occasions the vehicle had not been diagnosed by the dealer. He contact also stated that when pressing the start button the vehicle would not start. The brake light also illuminates on the instrument panel even though the brakes are not engaged. The failure mileage was 5000 and the current mileage was 10000.