HELLO, I LIVE IN ISRAEL, SOFTWARE EXPERT, M.SC. IN MECHANICAL ENGINEERING. ON FEB 5TH 2010 MY PRIUS 2008 CRASHED INTO THE CAR DRIVING AHEAD DUE TO THE BRAKES PROBLEM. CRASH PRE-CONDITIONS: LOW SPEED - 28KM/HOUR (17.4MPH), SLIPPERY ROAD DURING THE RAIN, MORE THAN SUFFICIENT DISTANCE TO THE CAR AHEAD. THE CAR AHEAD STARTED BRAKING SHARPLY, INSTANTLY STRONG BRAKING HAS BEEN APPLIED TO PRIUS WITH NO RESPONSE FOR A FEW TENTHS OF SEC, THERE WAS A FEELING OF SLIDING WHICH RESULTED IN CRASH. DURING TWO YEARS DISPROPORTIONALLY LOW BRAKES RESPONSE HAPPENED TO ME TWICE IN SIMILAR LOW SPEED CONDITIONS; WHEN COMING TO ROUNDABOUTS AT 15-20KM/HOUR WHILE APPLYING SIGNIFICANT PRESSURE ON BRAKES I CAME 2-3M FURTHER THAN EXPECTED WITH THE FEELING OF VERY WEAK BRAKES RESPONSE. ATTEMPTS TO REPRODUCE THIS CONDITION DIDN'T SUCCEED, IT HAPPENS IN VERY SPECIFIC CIRCUMSTANCES. THE CRASH RESULTED IN NO INJURIES, BUT SIGNIFICANT DAMAGE TO BOTH CARS (ABOUT $4000). *TR