2009 JEEP COMMANDER Wheels Problems

I AM THE ORIGINAL OWNER OF A 2009 JEEP COMMANDER. IN THE FALL OF 2013 I PURCHASED 4 NEW TIRES,AND WAS TOLD 2 VALVE STEMS WERE CRACKED SO I HAD THEM REPLACED. ON 9/3/14 ON THE WVA TURNPIKE AT 70 MPH THE LEFT REAR WARNING LIGHT FLASHED AND THEN COUNTED DOWN FROM 40LBS TO 5LBS IN 10 SECONDS. I WAS ABLE TO STOP ON A VERY NARROW BERM AND CALLED AAA TO CHANGE THE TIRE. ON RETURN HOME WENT TO THE TIRE STORE AND WAS TOLD THE STEM NUT (ONE OF THE REMAINING ONES) HAD BROKEN OFF AND THE TRANSMITTER FELL INTO THE TIRE CAUSING THERAPID AIR LOSS. ON INSPECTION ON THE REMAINING STEM NUT IT WAS FOUND TO BE CRACKED AND SPLIT AS IIT WAS REMOVED. THE CRACK HAD CORROSION INDICATING IT HAD BEEN THERE FOR SOME TIME. I HAVE NO DOUBT IT COULD HAVE BROKEN OFF AT SPEED....

TL* THE CONTACT OWNS A 2009 JEEP COMMANDER. THE CONTACT STATED THAT THE TIRE BECAME DEFLATED WHILE THE VEHICLE WAS IN MOTION. THE CONTACT STOPPED AND INSPECTED THE VEHICLE, FINDING THAT THE VALVE STEM WAS FRACTURED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE THEY ADVISED HIM THAT THE TREAD BECAME WORN AND SEPARATED. THE TIRE PRESSURE MONITORING SYSTEM WAS REPAIRED. THE MANUFACTURER WAS NOT CONTACTED. THE FAILURE MILEAGE WAS APPROXIMATELY 48,000. THE CURRENT MILEAGE WAS APPROXIMATELY 61,000.