NHTSA Complaint #10143498 — 2003 HYUNDAI SONATA

I AM EXPERIENCING THE VALVE STEM/TIRE ISSUES IN MY 2003 HYUNDAI SONATA THAT ARE CURRENTLY BEING INVESTIGATED. I HAVE HAD 2 FLAT TIRES SINCE JULY AND BOTH TIMES I WAS TOLD THAT IT WAS THE VALVE STEM. I WAS TOLD THAT THIS IS A HYUNDAI ISSUE AND THAT WHEN YOU HIT A BUMP THE HUBCAP SPINS AND EVENTUALLY "SNAPS" OFF THE VALVE STEM. I HAVE CALLED 2 DIFFERENT HYUNDAI DEALERSHIPS AND THEY BOTH DENIED THAT IT WAS A HYUNDAI ISSUE. THEY BOTH CLAIMED THAT I PROBABLY HAVE THE WRONG SIZE TIRE ON THE CAR. I FELT LIKE MY ISSUE WAS DISMISSED BOTH TIMES. THE TIRES ON THE CAR ARE THE EXACT SIZE AS REFERENCED IN MY OWNERS MANUAL. I WAS TOLD THAT REPLACING THE TIRES TO A "SPECIFIC BRAND" WOULD SOLVE THE PROBLEM. SO YESTERDAY, I BOUGHT 2 NEW TIRES AFTER I COULD NO LONGER KEEP AIR IN THE FRONT TIRES FOR MORE THAN 6 HOURS. WHEN THEY REMOVED THE HUBCAPS, THEY SAID THAT THE TIRES DEFLATED ON THEIR OWN, THROUGH THE VALVE STEMS. I CAME ONLINE TO RESEARCH THIS ISSUE AND SEE IF ANYONE ELSE HAS HAD THE ISSUE AND SAW AN ARTICLE ABOUT THE INVESTIGATION THAT HAS JUST BEGUN AND THOUGHT IT BEST TO LODGE A COMPLAINT. I HAVE RECEIPTS FOR ALL OF THE REPAIRS AND NEW TIRES IF THIS IS NEEDED. *JB