TPMS will not show catastrophic heat build up. In February I had a major bearing failure. Completely ate the entire center section of the hub. There was nothing left of the bearing. My TPMS didn't notify me of anything. I found it when I stopped for gas and did my usual walk around. By the grace of God I didn't lose the wheel and tire.
I spoke to the TPMS folks and they told me that the only temp the TPMS will read is internal and Extenal air temps. The problem I had didn't generate enough heat within the tire to trigger the alarm.
I wish someone would make a hub temp monitoring system.
I worry more about hubs than I do about tires.....
In my case above, I doubt the internal temps would have gotten high enough to trigger the alarm.
This is a brand new truck. I had to leave the TPMS system in the old truck and didn't have time to replace it for this trip. Not sure what system I'll go with. I was VERY dissatisfied with my last system. Lots of issues with it showing the trailer still attached even a half hour after I disconnected and drove off. And it would not have notified if a wheel had actually come off the trailer. It only showed decrease in pressure and very high temperatures......I could write a book on how poorly these aftermarket TPMS units are designed.