TONIGHT AROUND 1950 HRS., WHILE ATTEMPTING TO PARK MY VEHICLE IN A PARKING COVER, I LOST CONTROL OVER MY TOYOTA SIENNA 2013 DUE TO UNEXPECTED ACCELERATION. THE VEHICLE ACCELERATED SUDDENLY AND AS A RESULT I HIT AND RUN OVER THE CURB. I TRIED TO APPLY THE BRAKE PADDLE WITH ALL OF MY STRENGTH WITHOUT ANY SUCCESS. TWO OF MY CHILDREN WERE FRIGHTENED BECAUSE OF THIS ACCIDENT. IF IT WASN'T FOR THE CURB IN FRONT OF MY VEHICLE, MY VEHICLE WOULD HAVE STRUCK/HIT THE APARTMENT BUILDING IN FRONT OF ME.