ON 12/28/09 AT APROX. 6:30 A M, WHILE DRIVING MY 2010 TOYOTA PRIUS, I ATTEMPTED TO STOP ON A ROUGH ICE/SNOW PACKED SURFACE. I WAS TRAVELING AT ABOUT 5 MPH. THE VEHICLE SLID FOR ABOUT 20 TO 25 FEET BEFORE CRASHING INTO A SNOW BANK. THE ABS DID NOT OPERATE, AS I NEVER FELT THE DISTINCT PULSATING IN THE BRAKE PEDAL. THE VEHICLE SEEMED TO ACTUALLY LOOSE ALL BREAKING POWER FOR A INSTANT AND SURGE FORWARD. NO OTHER VEHICLES WERE INVOLVED AND NO ONE WAS INJURED. THE FRONT BUMPER WAS DAMAGED AND THE VEHICLE WAS REPAIRED FOR ABOUT $1,400. AFTER THE VEHICLE WAS REPAIRED, WHILE DRIVING OVER ROUGH SURFACES, AT TIMES, I NOTICED THAT THE BRAKES DID NOT STOP PROPERLY. AT THAT TIME, THERE WAS NO RECALL FOR THE 2010 PRIUS BRAKES. IT FEELS AS IF THE BRAKES STOP WORKING FOR AN INSTANT AND THE VEHICLE SURGES FORWARD. I EVEN REMARKED TO MY WIFE, WHILE DRIVING, THAT THE BRAKED DID NOT FEEL RIGHT WHEN STOPPING SOMETIMES. THERE HAS SINCE BEEN A RECALL FOR THE 2010 PRIUS BRAKES. MY PRIUS IS NOW AT THE TOYOTA DEALERSHIP WHERE THE BRAKE RECALL WILL BE PREFORMED. I HAVE BEEN DRIVING OVER 38 YEARS AND HAVE A VERY GOOD DRIVING RECORD. IT IS MY OPINION, THAT THE ACCIDENT WOULD NOT HAVE OCCURRED HAD THE BRAKES IN MY 2010 PRIUS BEEN WORKING PROPERLY.