MY CAR (INSURED) REAR ENDED ANOTHER PARTY AT LESS THAN 10 MILES PER HOUR. THE PRE-COLLISION SYSTEM THAT IS PART OF MY CAR NEVER BECAME ACTIVE IN MY CAR AND SO I REAR ENDED THE CAR. LEXUS INSPECTED MY RX-350 AND HAVE AN UNACCEPTABLE REASON THAT IT WILL NOT WORK, UNLESS THERE IS A NOTICEABLE SPEED DIFFERENCE BETWEEN MY CAR AND THE CAR AHEAD OF ME. THE CAR WAS THE PROBLEM AND IT DID NOT WORK AND SO I REAR ENDED THE PREVIOUS CAR. MY LIGHTS WERE ALSO BROKEN AND HAD TO BE REPLACED. SOME ELECTRICAL WIRING REWORK WAS ALSO DONE.