TPMS ON control cluster

[Big Al]

My new 2025 Ram 3500 TPSM reads about 5 psig more than actual pressure from tire gauge, dealership says these are never accurate and to ignore it, but my 2019 Ram 1500 was dead accurate. So why would the 3500 not be accurate?
Is there a calibration issue?

 

[AH64ID]

Usually the dash is programmed to read low so you don’t run under-inflated. Are you sure the hand held gauge is accurate?

 

[Big Al]

Thanks for the reply, yes it was compared to three gauges the read within 1/2 psig of each other.