2018 LAND ROVER RANGE ROVER Visibilitywiper Problems

OUR NEW RANGE ROVER IS CREATING A SQUEALING NOISE FROM THE INTERIOR ELECTRONICS/AC UNIT. IT'S SIMILAR TO LETTING THE AIR OUT OF AN INFLATED BALLOON BY THE SPOUT. THE PITCH GOES HIGHER, LOWER, AND ALL OVER LIKE YOU ARE MOVING YOUR HANDS WHEN TRYING TO MAKE THE BALLOON SQUEAL. OUR VEHICLE IS NOW 3 MONTHS OLD, AND HAS SPENT 2.5 MONTHS IN SERVICE. AFTER RECENTLY GETTING OUR CAR BACK, THE SOUND CAME BACK RIGHT AWAY. THE SERVICE DEPT. IS CLUELESS, AND ALREADY HAD PUT OVER 200 MILES ON OUR CAR "TESTING IT IN REAL WORLD CONDITIONS." EVERY DEALERSHIP SALES & SERVICE MANAGERS, INCLUDING GENERAL MANAGER OF DEALER HERE IS HARDLY HELPING AND CLUELESS. THIS IS FROM RANGE ROVER NEWPORT BEACH, CA. NOW THIS SOUND IS WORSE, AND MAKES YOU WANT TO SMASH YOUR HEAD THROUGH THE WINDOW; IT'S BASICALLY SOUND TORTURE. OUR WINDSHIELD WIPERS HAVE ALSO NEVER WORKED, WHICH IS...