(1). I SLAMMED ON THE BRAKES, BUT THERE WAS NO POWER BRAKES. THE 2005 PRIUS SLOWED, BUT DID NOT STOP UNTIL IT CRASHED INTO ANOTHER VEHICLE. I WAS GOING APPROXIMATELY 35 MPH, AND I TRAVELED 3 CAR LENGTHS BEFORE COLLIDING WITH THE OTHER VEHICLE. (2). LOSS OF POWER ASSIST HAD PREVIOUSLY OCCURRED WHILE BACKING UP, BUT THIS WAS THE FIRST FAILURE GOING FORWARD. (3). TOTAL LOSS(TOTALED,, $7,000 DAMAGE). THE 2005 PRIUS IS NOW AT AN AUTOMOBILE RECYCLING YARD. )4) I NOTIFIED TOYOTA. BUT I HAD TO CALL THEM BACK SEVERAL TIMES, AND AFTER 15 DAYS, SOMEONE FINALLY ANSWERED, INSTEAD OF ME GETTING THEIR VOICE MAIL. IF THE POWER BRAKES HAD FAILED AT AN INTERSECTION, IT COULD HAVE BEEN A FATAL CRASH. *KB