Tire Pressure Monitoring System problems of the 2009 Mazda MAZDA6

While checking the air pressure in a customer's car the valve stem broke causing all air to escape from the tire and necessitating the purchase of a new tpms sensor.

For the second time in a year the air valve on one of the tire pressure sensors on our Mazda corroded and snapped off as I was putting air in the tire. I'm very grateful this happened while the car was in our driveway and not while my wife or daughter was driving the car.

Tire valve stem/tpms sensor broke while adding air to a customer's tire.

While driving at 55 mph, the low pressure warning light came on. I attempted to get to a safe place to check my tire but the tire went flat too quickly. I had to change the tire on the road. The tire pressure monitoring device had failed and fallen inside the tire resulting in a rapid pressure drop. Corrosion had caused the nut to break apart and fall off. Within 6 months the same thing happened on a different tire. Driving at 55 mph, the warning light came on and I immediately pulled over to watch my tire rapidly going flat - all within about 20 seconds. I changed my tire on a very busy highway. I was lucky that this did not happen on a multi-lane thruway. This is a very serious safety hazard - the mandated safety device is the cause of the hazard.

The contact was servicing a 2009 Mazda Mazda6. The contact stated that the valve stem on the tire pressure mounting train system was rusted and corroded and causing the tire to leak air abnormally. The contact did not inform the dealer or manufacturer of the failure, nor was the vehicle repaired. The current mileage was 50,349 and the failure mileage was 43,349.