I was greeted with a low tire pressure warning Sunday evening. A visual inspection suggested that it wasn't an emergency, so I decided to let it go until next weekend. I've kept an eye on the tires just in case it turns out to be a bigger problem, but the warning went away this evening. I pulled out my pressure gauge and everything seems fine. Assuming I'm not a victim of a vigilante tire patcher, what's my next step?

 

This has been the topic of many threads.

However, since you asked.... it is improtant that all four tires be set exactly the same cold. If you set them all at 38PSI you will not have an issue. Most of the time when you get a TPM issue, it is because you had the tires inflated too low. It is the consensus that 35PSI is the minimum to avoid false warnings. If it is cold at night, and you go off to work in the morning, one or more tires can be below the rest and set off a false alarm.

The entire TPMS is just a useless PITA.