MY TIRES, WHICH ARE NOT DEFECTIVE NOR WORN KEEPING LOOSING AIR CAUSING THE TPMS SENOR TO COME ON. AFTER TAKING IT IN MANY TIMES TO GET AIR I WAS TOLD THE TPMS SENOR WAS BAD ON ONE TIRE AND THERE WAS CORROSION AROUND THE WHEEL. I REPLACED IT AND HAD SEALANT PUT AROUND THE CORROSION. I WAS INFORMED THAT THIS WAS A FREQUENT PROBLEM WITH THESE WHEELS AND CHRYSLER IS AWARE OF IT. I STILL HAVE TO CONTINUALLY PUT AIR IN THE TIRES EVERY 7-10 DAYS, AND THE "SERVICE TIRE SYSTEM" MESSAGE NOW NEVER GOES OUT. *TR