2017 LEXUS ES350 Unknown Or Other Problems

I WAS DRIVING DOWN THE HIGHWAY IN VA AND I HEARD A LOUD EXPLOSION AND I LATER FOUND OUT THE SUNROOF EXPLODED ON ITS OWN NO CARS AROUND, NO OVER PASS IT JUST EXPLODED INTO LITTLE PIECES.

NAV SYSTEM WILL NOT TAKE ME TO MY HOME ADDRESS - MY DEVELOPMENT WAS STARTED IN 2003. MY STREET IN NOT AVAILABLE AND THE NAV SYSTEM DISABLES ME FROM TYPING THE STREET NAME. JUST MOVED TO A NEW STATE AND NEED TO BE ABLE TO PUT IN 'TAKE ME HOME'. I HAVE CONTACTED THE DEALER (WILDE LEXUS, SARASOTA, FL) 3 TIMES - THEY CLAIMED TO HAVE ORDERED A NEW DISK BUT I FEEL I AM GETTING A RUN-AROUND SINCE THE DISK DOES NOT SHOW UP - HAVE BEEN DRIVING THE CAR FOR A LITTLE OVER ONE YEAR - I HATE IT.

THE PRE-COLLISION SYSTEM DOES NOT WORK PROPERLY. THE CAR REAR ENDED THE VEHICLE IN FRONT OF IT WITHOUT WARNING AND BRAKE ASSIST BY PRE-COLLISION SYSTEM AS LEXUS CLAIMED. IT RESULTED IN AN ACCIDENT. LEXUS HAS PERFORMED THE INVESTIGATION AND EXTRACTED DATA FROM EDR. THEY CONCLUDED NO DEFECT FOUND. I STILL BELIEVE THAT THE CAR PRE-COLLISION SYSTEM DID NOT WORK AT ALL AND WAS NOT ABLE TO PREVENT THE COLLISION AS EXPECTED.