I AM REQUESTING THAT DOT NHTSA INVESTIGATE THE ELECTRONIC ACCELERATION SYSTEM AND/OR THE ECM CAUSING SUDDEN UNINTENDED ACCELERATION OF MY 2007 TOYOTA MATRIX. ON 9/18/2010 MY SON WAS DRIVING MY 2007 TOYOTA MATRIX. HE WAS PULLING INTO A PARKING SPACE IN FRONT OF A STORE & WAS ALMOST COMPLETELY STOPPED WHEN, EVEN THOUGH HE HAD HIS FOOT OFF THE ACCELERATOR & ON THE BRAKE, THE CAR BEGAN TO ACCELERATE ON IT'S OWN. HE THEN PUSHED HARDER ON THE BRAKE & TURNED THE WHEEL & THE VEHICLE CONTINUED TO ACCELERATE. THE VEHICLE ENDED UP CRASHING INTO THE GLASS WINDOW OF THE STORE, TO THE RIGHT OF THE PARKING SPOT, COMING TO A STOP WITH THE FRONT END INSIDE THE STORE. THERE WAS APPROXIMATELY 4 FEET OF SIDEWALK BETWEEN THE FRONT OF THE PARKING SPACE AND THE BUILDING AND ABOUT A 2 INCH RAISE IN SURFACE HEIGHT. MY WIFE LATER INFORMED ME THAT SHE HAD AN UNINTENDED ACCELERATION PROBLEM THAT SAME DAY WHILE DRIVING THE SAME VEHICLE. SHE TURNED ONTO A STREET & WAS TRAVELING AT APPROXIMATELY 25 MPH & APPROACHING A SLOWER MOVING VEHICLE IN FRONT OF HER. SHE THEN TOOK HER FOOT OFF THE ACCELERATOR TO COAST. THE VEHICLE CONTINUED TO ACCELERATE WITH HER FOOT OFF THE ACCELERATOR AND WITHOUT THE ACCELERATOR PEDAL MOVING. IT ACCELERATED TO ABOUT 50 MPH WHEN SHE THEN HAD TO APPLY THE BRAKE & TAP THE ACCELERATOR SEVERAL TIMES TO GET THE VEHICLE SLOWED TO AVOID HITTING THE VEHICLE AHEAD OF HER. I HAVE CONTACTED TOYOTA & THEY ARE SENDING AN ENGINEERING ANALYSIS COMPANY TO INSPECT THE VEHICLE. I WAS CONTACTED BY T