NHTSA Complaint #11040698 — 2017 CADILLAC XTS

PURCHASED MY 2017XT5 9/13/2017. WHILE DRIVING DOWN A MAIN STREET, I STOPPED FOR A LIGHT. WHEN THE LIGHT TURNED GREEN, THE CAR WOULD NOT MOVE. COULD NOT TURN IT OFF NOR COULD I TRY TO PUT IT IN ANOTHER GEAR. A KIND GENTLEMAN, WHO WAS BEHIND ME, GOT OUT OF HIS CAR AND ASKED IF I WAS OKAY. I TOLD HIM THE CAR WOULD NOT MOVE. HE TRIED. NO LUCK.. I GOT BEHIND THE WHEEL AGAIN AND TRIED TO SHUT IT OFF, AGAIN. EVENTUALLY, IT SHUT OFF. I PRESSED THE STARTED AGAIN AND IT REBOOTED. VERY SCARY... PRAYED THAT I WOULD MAKE IT HOME. NEXT AT, CALLED THE DEALER. EVEN AFRAID TO DRIVE IT IN FOR FEAR OF IT STOPPING BUT I WAS CLOSE TO HOME. THE DEALER KEPT IT FOR 3 DAYS. COULD NOT FIND OUT WHAT WAS WRONG BUT WAS TOLD THAT THEY COULD NOT DIAGONOSE IT UNLESS IT STOPPED. MY BROTHER TOOK HIS CAR IN FOR REPAIRS AND TOLD HIS MECHANIC THAT MY CAR STOPPED, JUST IDLED, IN THE MIDDLE OF A MAIN STREET AND STARTED LAUGHING. BUT HIS MECHANIC SAID "WAS IT A CADILLAC"? MY BROTHER SAID YES. THE MECHANIC SAID THAT THE COMPANY WAS HAVING TROUBLE WITH THE ELECTRIC SYSTEM AND HAVE NOT BEEN ABLE TO FIND THE TROUBLE. BESIDES THAT, I HAD TO HAVE THE SPRAY FOR THE WIPERS ADJUSTED. NOW, MY SUN ROOF DOES NOT WORK. I AM AFRAID TO DRIVE THIS CAR. I WANT TO GIVE IT BACK. WHAT SHOULD I DO????