2012 Lexus Ct Hybrid

1) A LIGHT IN A DASHBOARD CAME ON SAYING "CHECK HYBRID SYSTEM", I TOOK IT TO THE LEXUS DEALER , THEY CHANGED THE NON HYBRID BATTERY), CHARGED ME $350 FOR IT AND RESET THE COMPUTER. 2) A WEEK AFTER, THE LIGHT STARTED APPEARING AGAIN WITH THE SAME MESSAGE, THE MESSAGE APPEARED IN THE MORNING, IN THE WAY BACK HOME, COMING OUT OF THE SPEEDWAY , ALL THE LIGHTS IN THE DASHBOARD CAME OFF (BRAKES, ENGINE, ALL OF THEM) AND I LOST COMPLETE CONTROL OF THE CAR: NO BRAKES, NO STEERING, NO NOTHING. I TRIED RESTARTING THE CAR AGAIN, IT DID, AND THE NEXT DAY WAS DRIVEN TO THE DEALER AGAIN. THEY TOOK IT IN, HAD IT OVER 2 DAYS, SAID THAT THEY FOUND A "LOOSE CAP IN THE HYBRID BATTERY", RESET THE COMPUTER ONE MORE TIME AND GAVE THE CAR BACK TO ME. 3) THE CAR DID NOT FEEL THE SAME, IT WAS LIKE IF THE SWITCH BETWEEN HYBRID AND GAS MODEL WAS OFF, TOO ACCELERATED OR SOMETHING, BUT FOR THE MOST PART NO MAJOR ISSUES UNTIL YESTERDAY (A WEEK AND A HALF AFTER THE PREVIOUS INCIDENT). SAME THING HAPPENED THIS TIME, WHILE DRIVING THE CAR, ALL THE LIGHTS ON THE DASHBOARD CAME ON AND THE CAR LOST EVERYTHING: BRAKES, STEERING....IMPOSSIBLE TO CONTROL. I WAS LUCKY ONE MORE TIME AND NOBODY WAS HURT . THIS TIME THE CAR DID NOT START AGAIN. WE CALLED A TOW TRUCK AND SENT IT TO THE DEALER. LOOSING ABSOLUTE CONTROL OF THE VEHICLE IS NOT ACEPTABLE. I FELT I WAS TRAPPED IN A KILLING MACHINE. THIS COMPLETE SYSTEM FAILURE HAPPENS WHILE DRIVING. I COMMUNICATED THIS TO LEXUS.