I WAS IN A PARKING STRUCTURE GOING APPROXIMATELY 15 MPH WHEN I REMOVED MY FOOT FROM THE ACCELERATOR TO PRESS THE BRAKE. BEFORE I COULD GET MY FOOT TO THE BRAKE, THE CAR QUICKLY ACCELERATED. IT TOOK AT LEAST TWO ATTEMPTS AT PUSHING THE BRAKE PEDDLE BEFORE THE CAR CAME TO A STOP. AND, TO BE HONEST, THE GUARDRAIL THE CAR HIT HELPED ACTUALLY STOP THE VEHICLE. IT WAS TOTALLY UNEXPECTED AND EXTREMELY SCARY. IN HINDSIGHT, I SHOULD HAVE SUSPECTED THAT THERE MAY BE A PROBLEM WHEN I NOTICED THAT SOMETIMES WHEN APPLYING THE BRAKES TO COME TO A STOP THERE WOULD BE A FEELING OF THE BRAKES SLIPPING AND THE CAR LURCHING FORWARD A BIT. THE DEALERSHIP HAD THE CAR TOWED IN TO GET CHECKED OUT, AND I HAVE BEEN TOLD THAT THEY WILL NOTIFY TOYOTA. IN THE MEANTIME I AM CONCERNED ABOUT THE SAFETY OF THIS CAR!