I WAS DRIVING MY 2007 TOYOTA YARIS ON MARCH 30,2010 AROUND 1600 HRS AND THE ACCELERATOR STUCK IN THE FULL THROTTLE POSITION AND CAUSED A COLLISON AFTER THE BRAKES FAILED TO HOLD THE VEHICLE BACK FOR APPROX 200 FEET DOWN THE ROAD. WHEN A GOOD SAMARITAN STOPPED THE ACCELERATOR WAS STILL STUCK FULL THROTTLE AND CAUSED THE VEHICLE TO SKID OFF THE ROADWAY INTO A DITCH WHERE IT TRAVELED DOWN THE DITCH COMING TO REST AGAINST A LARGE BOULDER. I SUSTAINED A CONCUSSION AND KNEE AND HIP PAIN ASSOCIATED WITH THE IMPACT. I AM WISHING TO REPORT THIS INCIDENT SINCE YARIS HAS NOT BEEN MENTIONED IN ANY OF THE LITERATURE I HAVE FOUND PRINTED BY TOYOTA. MY VEHICLE WAS PURCHASED AT BRYAN EASLER TOYOTA IN HENDERSONVILLE NC AND HAD 50000 MILES ON IT AND IT IS STILL UNDER WARRANTY ALL MAINTENANCE HAS BEEN PERFORMED AT THIS LOCATION AND THEY SHOULD HAVE ANY RECORDS YOU REQUIRE. YOUR ATTENTION TO THIS MATTER WILL BE GREATLY APPRECIATED.