I BOUGHT A BRAND NEW 2010 TOYOTA PRIUS AND LEFT THE DEALER ON OCTOBER 23, 2009. I HAD TO STOP SHORT AT ONE OF THE STOPLIGHTS ON THE WAY HOME AND NOTICED A DISTURBING LAG BEFORE THE BRAKES ENGAGED. HOURS LATER I WAS DRIVING DOWN A MAJOR HIGHWAY WHEN TRAFFIC STOPPED SUDDENLY AND THE BRAKES WOULD NOT ENGAGE. I REAR-ENDED THE CAR IN FRONT OF ME AND MODESTLY DAMAGED THE CAR I HIT AND SEVERELY DAMAGED MY NEW PRIUS. FORTUNATELY NOONE WAS HURT. MY SIX YEAR OLD SON WAS IN THE BACK SEAT. *TR