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TPMS reads 4-5 psi higher than handheld gauge

napacruzergs

Full Member
173
1
18
Napa, CA
Buick Ownership
Buick Regal GS
Have a 2012 GS bought new which now has 91k miles. The TPMS has always read higher than 2 of my handheld tire pressure gauges. Lately it has been reading 4-5 psi higher than the handhelds. Wonder if my 7 year-old TPMS sensors are starting to die; I would think they would read low if dying.
 

MelsRegal

Full Member
3,300
362
83
Buick Ownership
Regal GS 2017
Are the handhelds either digital or if not a decent quality gauge? Not a pencil gauge?
Have you tried a reset of the sensors like you would do when rotating tires?
 
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