Got a weird thing going on. Got in my truck today and the low tire pressure light was on. Said two tires were 37, one 38 and one 26. So I turned on my air compressor and went to put air in the one that said it was 26. My air gauge said it was 32 though. Filled it to 38. Got in and started driving and the low tire light went off but the display never updated for the psi. Ran errands for an hour and still shows 37/37/38/26. Thoughts? My gps didn’t have a signal they other day too. Related?

 

The TPMS isn't tied to the GPS I believe, but is tied to your keyless fob signal. There is a TPMS reset/relearn in the manual. Try running through that and see if it fixes the issue.

 

No relearn should be needed. Give it a day or two.

 

The batteries died in one of mine. So I turned off the TPMS system with Forscan. I can check my tire pressure regularly, thanks for the dumb mandates making cars stupidly complex though.