WHILE ACCELERATING ONTO FREEWAY AT APPROXIMATELY 45 MPH THE BRAKES FULLY ENGAGED AND ENGINE POWER WAS LOST WHILE MY FOOT WAS ON THE ACCELERATOR. SPEED DECREASED BY ABOUT 25MPH IN JUST A FEW SECONDS. WITH MY FOOT STILL ON THE ACCELERATOR ENGINE ENGAGED AGAIN AND WE INCREASED SPEED TO ABOUT 45 MPH, WHEN THE AUTOMATIC TRANSMISSION WAS GOING TO SHIFT INTO OVERDRIVE, THE SAME INCIDENT OCCURRED AGAIN! POWER WAS REGAINED AT THE SAME SPEED ABOUT 25 MPH. WE SPEEDED UP TO ABOUT 45 MPH AGAIN AND THIS TIME I LOOKED AT THE BRAKE PEDAL. THE BRAKES FULLY ENGAGED THEMSELVES AGAIN THE BRAKE PEDAL ACTUALLY DEPRESSED WHILE I HAD MY FOOT ON ACCELERATOR ONLY! I THEN TOOK THE OVERDRIVE OFF AND PUT THE TRANSMISSION IN D3 MODE. THE INCIDENT DIDN'T OCCUR AGAIN WHILE IN D3 MODE. I WAS LEFT HAVING TO DRIVE ON FREEWAY AROUND 55MPH SCARED FOR MY AND MY FAMILIES LIVES! THIS VEHICLE SELF ENGAGED BRAKES FULLY THREE TIMES, WHILE MY FOOT WAS ON ACCELERATED ONLY! *TR