Since I inflated the tires another 3 psi in November, I have not had a single TPM warning, including some temperatures in December in the single digits. The one thing I had never checked until Fstop told me there was a monitor there, was the SPARE TIRE - and I'm 95% sure that was the culprit because it was down 6 psi!
Check the spare if your other four tires read normal, but in my case, I gave the TPM a bad wrap because it was functioning as it was designed and there was nothing wrong with the system. I still hate it when I let some air out to do a little mudding!
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