2017 BUICK LACROSSE Visibilitywiper Problems

CAR HAS 500 MILES ON IT. DRIVER SEAT BELT WILL NOT RELEASE. HAVE TO PUSH PULL NUMEROUS TIMES FOR ABOUT 2-4 MINUTES TO GET BELT TO RELEASE TO ATTACH. THEN WITH CERTAIN MOVEMENT BELT WILL LOCK YOU IN POSITION, NO ROOM TO MOVE UPPER TORSO. TOLD BY DEALER AND BUICK THAT THE PART IS NOT RELEASABLE, ONLY A PRODUCTION PART. IT HAS BEEN SITTING AT DEALERSHIP FOR OVER 3 WEEKS, STILL WAITING ON BELT ASSEMBLY. DEALER CLAIMS THAT THEY CAN ONLY WAIT ON GM, YET DEALER IS SENDING ME INFO ON THEIR GRET CUSTOMER SERVICE AND SALES. SALESMAN CONTACTED ME AND WANTED TO KNOW HOW AM I ENJOYING NEW VEHICLE--TOLD HIM TO LOOK OUT HIS WINDOW WHERE IT HAS BEEN SITTING FOR LAST 3 WEEKS. ALSO DRIVER SIDE WIPER ARM WAS HITTING A PILLAR WHEN IN OPERATION, VEHICLE WAS IN SHOP TO GET THIS AND DEFECTIVE PAINT ON BUMPER FOR...