NHTSA Complaint #10357671 — 2009 CHEVROLET IMPALA

I HAVE A 2009 IMPALA WITH BARELY 15000 MILES. TOOK IN FOR OIL CHANGE AND TIRE ROTATION AT A FIRESTONE BUSINESS. MECHANIC STATES THAT FRONT TIRES WOULD NOT PASS INSPECTION, AND RECOMMENDED 2 FRONT TIRES AND LIFETIME FRONT END ALIGNMENT FOR A COST OF ALMOST 750.00. DID NOT TAKE HIM UP ON HIS "GENEROUS" OFFER. THIS WAS JUST BEFORE THE CAR HIT 15K MILES. CAR HAS BEEN SERVICED EVERY 5K, AND UP UNTIL JUST OVER 10K, TIRE CONDITION WAS STATED AS "GOOD-9/32 TREAD IS STILL ON TIRES. SO, BETWEEN 10K & 15 K, THEY ARE NOW NO LONGER ANY GOOD? HAVE SEEN QUITE A FEW COMPLAINTS ONLINE ABOUT 2009 IMPALA TIRES WEARING OUT PREMATURELY, AS DID THE 2008'S(WHICH MY WIFE HAS) FRONT END HAS NEVER SHAKEN, SHIMMIED OR ANYTHING ELSE-STILL DRIVES DOWN THE ROAD AT 50 WITH NO PROBLEM AT ALL. AM WONDERING IF GM IS GOING TO GIVE ME A HASSLE ABOUT THIS-NOT A GOOD ADVERTISEMENT FOR THIS MODEL AT ALL! *TR