Two problems related to tire valve have been reported for the 2004 Chevrolet Trailblazer. The most recently reported issues are listed below.
I had two blowouts on the front tire (drivers side) and back tire (drivers side). On sept. 26, 2009. I ran into the curb and almost lost control of the vehicle; but since I was only going about 40 mph I was able to keep from crashing or rolling over. On the 7th of sept my tire went flat and I took it to sears and they advised it was the valve stem that caused the flat. They replaced the valve stem per my road hazard agreement. Back in March of 2009 I had a flat while on vacation in fort worth and took it to discount tires, and they informed me that it was the valve stem and that there was a recall on the stem. Upon returning home I took my car to sears and informed them of the incident and they advised they were not aware of a recall, checked the valve stems and said they didn't see anything wrong. When the blowouts occurred, we took the tires back to sears and had to pay for replacement tires (with the roadhazard fee it was apprx $230) because sears still says they have not received information on a recall notice for bridgestone tire valve stems. I found the information on the internet and also was made aware in March by the discount tire store in fort worth. I still have 2 tires from sears remaining on the vehicle and they will not replace them due to recall.
Bought an expensive set of tires for my SUV (rollover concern) within 1 year the valve stems installed with the new tires were rotting away and one of them deteriorated so badly all the air come out instantly. They looked perfect from the outside but pushing on them caused the others to rip as well.