AFTER MAKING A RIGHT TURN AFTER A FULL STOP, I ACCELERATED TO ABOUT 5 MPH AND WAS ABOUT TO PARK (LESS THAN 20FT FROM STOP SIGN) WHEN THE VEHICLE SUDDENLY ACCELERATED TO A HIGH SPEED. I WAS UNABLE TO BREAK AFTER REPEATEDLY APPLYING PRESSURE ON THE BRAKE PEDAL. I WAS UNABLE TO AVOID A HEAD ON COLLISION. AIRBAGS DEPLOYED INCLUDING THE SIDE BAGS NEXT TO MY 6 YEAR OLD SON. THE VEHICLE WAS PURCHASED 2 MONTHS AGO FROM GROSSINGER HONDA ON WESTERN AVE. IN CHICAGO, A CERTIFIED HONDA DEALER.