2004 LEXUS ES Electrical System Problems

I HAD A CAR ACCIDENT APPROXIMATELY ONE MONTH AGO DUE TO SUDDEN UNINTENDED ACCELERATION AND LOSS OF STEERING IN A 2004 LEXUS ES330. I AM THE ONLY OWNER OF THE CAR AND I HAD IT SERVICED REGULARLY OVER THE PAST 13 YEARS. THE NIGHT OF MY ACCIDENT I LOST COMPLETE CONTROL OF MY CAR AS I ATTEMPTED TO MERGE ON TO THE LOCAL LANES OF AN INTERSTATE HIGHWAY IN NORTHERN, NJ. THE CAR ACCELERATED TO THE LEFT AND CROSSED SPED ACROSS 8 LANES OF THE HIGHWAY, INCLUDING OVER A MEDIAN BEFORE IT SPUN AROUND AND JERKED TO A STOP IN THE LEFT LANE OF THE WEST BOUND LANES FACING EAST. I WAS HIT HEAD ON BY ANOTHER DRIVER. I WAS NOT INJURED, BUT THE CAR WAS A TOTAL LOSS. BOTH OF MY PARENTS ALSO CURRENTLY DRIVE LEXUS VEHICLES, AND BOTH MODELS WERE NOTED TO HAVE SIMILAR ISSUES. FURTHERMORE, MY MOTHER...