2002 GMC GM Vehicle Speed Control Problems

I WAS DRIVING MY 2002 AM GENERAL H1 HUMMER AND WHEN TRYING TO STOP, MY H1 ACCELERATED MAKING IT ALMOST IMPOSSIBLE TO STOP A 5 TON VEHICLE. I ALMOST ENDED UP IN A HEAD ON CRASH BUT PLACED GEAR IN NEUTRAL AND MY ENGINE TACH GAGE MAXED OUT AND AFTER 10 SECONDS LET GO. ACCORDING TO AM GENERAL THEY HAVE HAD A FEW INSTANCES SUCH AS MINE AND IT IS A FAULTY ACCELERATOR PEDAL. THIS WILL BE THE SECOND ACCELERATOR PEDAL BEING REPLACED. THE FIRST WAS IN MY 1999 H1. THIS IS A MAJOR ISSUE AN CAN CAUSE DEATH OR SERIOUS INJURY. IRONICALLY I BROUGHT IT IN 2 DAYS EARLIER FOR UNEXPLAINED ACCELERATION ON THE FREEWAY. I THOUGHT IT WAS A CRUISE CONTROL ISSUE AND WINKEL HUMMER IN RENO, REPLACED MY INJECTOR PUMP ($2,400) AND THE PROBLEM WAS NOT FIXED. I HAVE ORDERED A AC DELCO ACCELERATOR PEDAL WITH TPS...