NHTSA Complaint #10306403 — 2009 TOYOTA PRIUS

2009 TOYOTA PRIUS. STRANGE BEHAVIOR OF ANTILOCK BRAKES/TRACTION CONTROL SYSTEM WHEN HITTING A SINGLE POTHOLE OR SMALL PATCH OF ICE ON OTHERWISE CLEAR ROAD SURFACE. VEHICLE SIGNIFICANTLY DAMPENS BRAKE RESPONSE AND DOES NOT RECOGNIZE THAT THE TIRES ARE NOW ON A GOOD CONTACT SURFACE AND CONTINUES TO BE IN TC MODE FOR EXCESSIVE TIME PERIOD. ONLY WAY TO ASSURE YOU WILL STOP WITHIN REASONABLE DISTANCE IS TO LIFT UP ON BRAKE PEDAL AND REDEPRESS (NOW OUT OF TC MODE CAR WILL STOP QUICKLY). THIS PROBLEM PRESENTS ITSELF REGULARLY WHEN ROAD CONDITIONS ARE RIGHT. THE PROBLEM IS THE MOST NOTICEABLE AT MODERATELY LOW SPEEDS I WOULD ESTIMATE 5-25 MPH BUT LIKELY OCCURS AT HIGHER SPEEDS WHICH IS LESS NOTICEABLE. IT SEEMS TO BE A FACTOR OF DISTANCE OR THE FACT THAT THE CAR DOES NOT REALIZE THE WHEEL IS GETTING TRACTION AGAIN. *TR