2018 BMW X5 Electronic Stability Control Esc Problems

THIS BRAND NEW CAR I BOUGHT HAS THE OPTIONS OF "ADVANCED SAFETY SYSTEM" WHICH WAS SUPPOSED TO PREVENT A COLLISION. I WAS DRIVING ON ADAPTIVE CRUISE CONTROL, 4 CAR DISTANCE ON HIGHWAY. AS I WAS DRIVING CLOSE TO THE EXIT WHERE I NEEDED TO TAKE, ADAPTIVE CRUISE CONTROL DID NOT SEEM TO BE WORKING SINCE I NOTICED THAT THE CAR WAS NOT SLOWING DOWN AS I WAS APPROACHING THE CAR IN FRONT OF ME. I PRESSED ON THE BRAKE TO SLOW DOWN MY VEHICLE, BUT THE VEHICLE DID NOT RESPOND TO MY BRAKING. I PRESSED DOWN BRAKE AS HARD AS POSSIBLE TO STOP THE VEHICLE, BUT MY VEHICLE CONTINUED TO MOVE WITHOUT STOPPING UNTIL IT (FIRST CAR) HIT THE CAR IN FRONT OF IT AND THE CAR IN FRONT OF THE SECOND CAR HIT THE THIRD CAR. AUTOMATIC EMERGENCY BRAKING SHOULD HAVE KICKED IN TO PREVENT COLLISION, BUT IT DID...

THE CAR DISPLAYED DRIVETRAIN MALFUNCTION WARNING MESSAGE MULTIPLE TIMES AFTER THE CAR REACHED 10K MILES. THE DRIVETRAIN MALFUNCTION MESSAGE WAS REPORTED TO THE DEALER MULTIPLE TIMES AND DEALER FAILED TO PROVIDE PROPER EXPLANATION AS WELL AS FAILED TO PERMANENTLY FIX THE PROBLEM. THE CAR IS HYBRID AND THE ISSUE HAPPENS RANDOMLY WHEN DRIVEN AT SPEED BETWEEN 60MPH TO 80 MPH. WHEN THE WARNING MESSAGE IS DISPLAYED THE CAR AIR CONDITION STOPS FUNCTION COMPLETELY, THE CAR LOSES ACCELERATION AND MAINTAIN SPEED OF 60 MPH EVEN IF THE GAS PEDAL IS PRESSED FIRMLY.