MY VACCUM BOOSTER FAILED. MY SON WAS DRIVING MY JEEP THAT ONLY HAS 2000 MILES ON IT. HE WAS DRIVING IN DRY WARM CONDITION. HE DROVE IN THE SUBURBS ON A MAIN STREET. HE HIT THE BRAKES AND NOTHING HAPPENED WHICH CAUSED HIM TO REAR END SOMEONE. EDR REPORT HAS BEEN DONE. INSURANCE HAS INVESTIGATED AND WELL. UNFORTUNATELY CHRYSLER WONT OWN UP TO THE FACT THAT THE VACCUM BOOSTER WAS FAULTY.