EVER SINCE I GOT MY 2006 PRIUS, THE BRAKES HAVE BRIEFLY STOPPED WORKING WHEN I TRY TO STOP QUICKLY OR ON A HILL WHEN IT IS WET OR ICY OUTSIDE. ON FEBRUARY 24, IT WAS VERY ICY, AND THE CAR COMPLETELY LOCKED UP WHEN I WAS GOING DOWN A HILL. I WAS GOING VERY SLOWLY WHEN I STARTED GOING DOWNHILL, BUT NOTHING HAPPENED WHEN I TRIED TO STEER OR PUSH DOWN THE BRAKES AND I GOT IN AN ACCIDENT. I CONTACTED TOYOTA, BUT THEY ONLY TESTED IT WHEN IT WAS DRY OUTSIDE, AND I HAVE NEVER HAD ANY TROUBLE WHEN IT WAS DRY. THEY TOLD ME NOTHING WAS WRONG. SINCE THEN, I HAVE HAD INCREASED TROUBLE STOPPING AT STOPLIGHTS WHEN IT IS WET. THE WHOLE CAR SEEMS TO LOCK UP AND I SLIDE TOWARD THE LIGHT FOR A FEW SECONDS BEFORE THE BRAKES RE-ENGAGE. I AM TRADING THE CAR IN, AS I AM AFRAID FOR THE SAFETY OF MY CHILDREN IN THIS CAR.