TPMS Reading off

[MrScott]

So, 2016 Ram 3500 dually, mt RF tire pressure is not reading correctly.
It is reading high.
I have 80 psi in both fronts but the one shows 89 psi on my display. I have verified the 80 psi with 2 different gauges.
Any idea what us going on?
If a reset is needed, how to do that?
Thanks.

 

[Curmudgeon]

The sensors on my 2014 1500 are either dead-on or at least within a couple PSI. But I'm also curious to see if there is a reset or calibration an owner can perform. If all sensors are off by the same amount it's hard to fault the sensors. One, yes. Not all.

 

[mtofell]

I'd bet on a bad sensor. They usually only last around 10 years and (assuming original) yours are seven so getting somewhat up there in age. The ones on our family wagon (2008 Honda Odyssey) started flickering and the error message when cold in the winter and then finally stayed on after about 12 years. Next time I get tires I'll have them them replaced @ +/- $50/ea IIRC.

OP's issue is somewhat different in that it's a false reading rather than age but I still think it's just a faulty sensor.