TIRES TREAD WORE BELOW LEGAL DEPTH PRIOR TO 20,000 MILES ON THE TIRES, CREATING A HAZARD WHICH CAUSE MY DAUGHTER TO HYDROPLAIN ON ALMOST DRY ROAD - CAR WENT INTO A GRASS MEDIAN TAKING OUT A SIGN AND MUCH DAMAGE TO THE VEHICLE. THIS WAS ON A 2004 CAMRY THAT WAS PURCHASED NEW - JUST HAD IT IN TO THE DEALER FOR AN OIL CHANGE AND THEY ROTATED THE TIRES - NEVER MENTIONED THE WEAR ON THE TIRES. WHEN THE TIRES WERE EVALUATED AT THE TIRE DEALERSHIP - IT WAS NOT DUE TO IMPROPER AIR PRESSURE OR ALIGNMENT - THE WEAR WAS ALL OVER THE TIRE. *NM