NHTSA Complaint #10305909 — 2010 TOYOTA PRIUS

I HAVE A 2010 PRIUS AND HAD A 2005 PRIUS WITH ALL THE SAFETY FEATURES. WHEN I HAD THE 2005 PRIUS, I NOTICED ON SOME ROADS THAT DURING BRAKING, THE BRAKES WOULD RELEASE THEN REENGAGE, GIVING THE SENSATION THAT THE CAR IS ACCELERATING. THIS HAPPENS WHEN THE ROAD HAS A SERIES OF DIPS (WASHBOARD). THE FIRST COUPLE TIMES THIS HAPPENED, IT WAS RATHER FRIGHTENING BECAUSE THE CAR IN FRONT OF ME HAD STOPPED, AND I FELT AS IF I WERE ACCELERATING. THIS IS A REPRODUCIBLE EVENT THAT OCCURS AT A KNOWN LOCATION THAT I SIMPLY AVOID. THE ROAD IN THIS PARTICULAR AREA IS ALSO DOWN SLOPE, WHICH LENDS TO THE ACCELERATION FEELING. I HAVE DRIVEN MY 2010 PRIUS OVER THIS SAME AREA WITH VERY MUCH THE SAME RESULT. MY INITIAL ASSESSMENT WAS THAT THE TRACTION CONTROL TOOK OVER TO REGAIN TRACTION, HOWEVER I WOULD NOT THING THIS IS ACCEPTABLE. THE TOYOTA DEALERSHIP SAID THIS IS NORMAL BEHAVIOR AND IS NOT A PROBLEM. PLEASE FEEL FREE TO CONTACT ME AND I CAN DESCRIBE BETTER THE CONDITIONS FOR THIS VERY REPRODUCIBLE EVENT. *TR