Tire TPMS valve stem completely shattered. The vehicle has had these replaced within the past 6 months with new tires installed, yet the one had shattered while adding air allowing all air to spew out of tire. This could be a major safety issue if these fragile sensors/stems were to shatter while driving.

- Pittsburgh, PA, USA

The contact owns a 2009 Dodge Caliber. The contact stated that while adding air to the drivers side rear tire, the valve stem became fractured. The vehicle was taken to a private mechanic where it was advised that the tire pressure monitoring system and valve stem needed to be replaced. The manufacturer was not notified of the failure. The vehicle was not repaired. The approximate failure and current mileage was 56,000..updated 01-10-14

- Pittsburg, PA, USA

Valve stems break and can cause tires to loose air. Valve stems often break near the cap so you cannot add air to the tire, and in some cases they break lower so the needle in the valve becomes loose. This happened with two valve stems when the vehicle was at about 35,500 miles, and now with about 39,000 miles, I have a third valve stem that cracked differently at a lower position so it was even harder to detect. Tires may loose air so the warning light comes but you may not be able to add air. It may be a slow leak or if the crack is near the needle it could cause a rapid loss of air. These defective stems which have pressure sensors cost almost $100 at the dealer. I understand people are replacing the defective stems with conventional rubber stems and just ignoring the warning light. This is a common well documented problem for may Chrysler vehicles.

- Woodbridge, VA, USA

3 out of 4 valve stem's had to be replace on my car due to material defect...contacted Dodge due to product failure to see if this had been recalled as of yet. Had the same problem with my daughters 2009 Dodge avenger last July 2011.

- Lapeer, MI, USA