NHTSA Complaint #10661399 — 2008 MAZDA MAZDA3

ON TWO SEPARATE OCCASIONS, THE VALVE STEMS THAT CONTAINED THE TPMS (TIRE PRESSURE MONITORING SYSTEM) SENSORS BECAME CORRODED AND FELL APART. THIS HAPPENED WHEN I WENT TO FILL TIRES WITH AIR BECAUSE THEY APPEARED TO HAVE LOW AIR PRESSURE. EACH TIME, AS SOON AS I APPLIED SLIGHT PRESSURE FROM THE AIR HOSE TO THE VALVE STEM, THE VALVE STEM DISINTEGRATED AND WAS PUSHED INSIDE THE TIRE. IT TOOK VERY LITTLE PRESSURE TO PUSH THE STEM INSIDE THE TIRE. THE TIRE THEN IMMEDIATELY DEFLATED BECAUSE AIR ESCAPED THROUGH THE OPEN HOLE. THIS HAPPENED WHEN I WAS STATIONARY (BECAUSE I WAS FILLING THE TIRE WITH AIR). BUT, JUDGING FROM THE FACT THAT ONLY A SLIGHT AMOUNT OF PRESSURE WAS NEEDED TO PUSH THE VALVE STEM INTO THE TIRE, I BELIEVE THAT THIS COULD HAVE HAPPENED VERY EASILY WHILE IN MOTION AT ANY SPEED. I FEEL THAT IT WAS A VERY DANGEROUS SITUATION THAT I WAS NOT WARNED ABOUT AT ANY POINT AND, AFTER TELLING THE COMPANY ABOUT IT, I FEEL THAT MY CONCERNS WERE NOT TAKEN SERIOUSLY. *JS