2012 KIA RIO Wheels Problems

THE REAR END OF THE CAR MAKES A WEIRD WHOP WHOP SOUND WHEN YOU ARE DRIVING IT HAS DONE THIS SINCE I HAVE BOUGHT THE CAR AND HAS GOTTEN WORSE. WHEN I COMPLAINED TO CHARPER THEY TOLD ME ALL THE KIA RIOS DO THIS. I FEAR THAT A REAR WHEEL IS GOING TO EVENTUALLY COME OF OR BLOW SOMETHING. CANT EVEN PUT WINDOWS DOWN WHEN DRIVING IT SOUNDS LIKE A HELICOPTER IS LANDING ON THE ROOF IT IS THAT BAD. HURTS YOUR EARDRUMS. HAPPENS NO MATTER WHAT DRIVING CONDITION.

4 TIRES WITH ONLY 17,000 MILES ON THEM, HAVE RUBBER DRY ROT CRACKS ON SIDEWALLS AND ALWAYS NEED ALL 4 TIRES AIR ADJUSTED BACK UP OVER SHORT TIME, AND ALWAYS LOOK DINGY DIRTY FROM ROAD DIRT IN CRACKS ON SIDEWALL. SAFETY HAZARD ? KUMHO SOLUS KH25 DOT YOAH YPL8 (5111 ) 185\65R15 ALL 4 TIRES SAME DOT. CAR KEPT GARAGED AND HARDLY DRIVEN SINCE PURCHASED NEW. TIRES SHOULD NOT BE DOING THIS. I CONTACTED COMPANY BUT NOT REPLYING TO PHONE CALLS AND I SENT EMAILS ? I NOTICED SAME BRAND BEING REPLACED BY COMPANY WITH BIGGER SIZE SAME PROBLEM RECALL ? UPDATED 12/01/15*LJ *JS