I HAVE OWNED TWO PRIUS AND BOTH OF THEM HAVE HAD THE SAME BREAKING ISSUE. WHEN YOU ARE AT LOWER SPEEDS AND HIT A POTHOLE OR BIG BUMP WHILE BREAKING, THERE'S A SUDDEN 'JOLT' AND IT FEELS AS IF THE BREAKS HAVE BEEN COMPLETELY RELEASED MOMENTARILY. IT ALMOST FEELS AS THE CAR LURCHES FORWARD. I TRY TO AVOID POTHOLES, ETC ANYWAYS, BUT I AM EXTRA VIGILANT BECAUSE OF THIS ISSUE AS I FEEL IT HEIGHTENS THE CHANCE OF A CRASH DUE TO INCREASED DECELERATION TIME. LAST NIGHT, I WAS COMING UP TO AN INTERSECTION THAT HAD A YIELD SIGN. THE CAR IN-FRONT OF ME STOPPED. I HIT MY BREAKS, BUT WHILE BREAKING, I HIT A POTHOLE (IT AS DARK SO I COULDN'T SEE IT) MY BREAKS SUDDENLY BEHAVED AS DESCRIBED ABOVE - THEY LET GO FOR A MOMENT AND THE CAR SOMEWHAT JOLTED FORWARD. I WAS UNABLE TO STOP IN-TIME AND REAR-ENDED THE DRIVER AHEAD OF ME. I WAS ALWAYS AFRAID THAT BECAUSE OF THIS BREAKING ISSUE THAT THIS WOULD HAPPEN - AND NOW IT HAS. I KNOW THERE WAS A PREVIOUS INVESTIGATION AND A PARTIAL RECALL BUT IT DIDN'T AFFECT ALL OF THE 2010 PRODUCTION VEHICLES, JUST A PORTION. I FEEL THIS NEEDS TO BE RE-INVESTIGATED AS MY CAR AND COUNTLESS OTHER CARS (BOTH INVOLVED AND NOT INVOLVED IN THE LAST RECALL) ARE (STILL) MALFUNCTIONING WHEN IT COMES TO THE BREAKING SYSTEM AT SLOWER SPEEDS WHEN ON ROUGH ROADS / ENCOUNTERING POTHOLES / BUMPS.