1999and2013TL

I have 2013 Acura TL AWD ADvanced

Did anyone notice there are 2 psi discreprency between the TMS and regular tire gauge.

for example, my tire gauge reads 34 psi but the TMS shows 36.

I have my car checked at firestone tire stone, they are 34..

Not sure if it is something wrong with TMS.

Any idea?

Hogan9166

iTrader: (1)

Could it possibly be the use of a less accurate tire gauge at the store? Not sure, but it seems the inaccuracy could come from either source of information. Why immediately assume it is the TPMS?

KeithL

I trust the car TPMS reading over store gauge, I have several gauges and there is easily 2psi difference across them all. I also over inflate my tires by 4-5psi by the car TPMS so slight differences don't bother me.

jim_c

At least you should be happy your readout is in psi in the states!
LOL.
Being a so-called metric country, we have our TPMS readout in kilopascals. 220 kPa = 32 psi.

vinnier6

iTrader: (1)

i have a very accurate track guage....i also believe the tpms to be 2 psi high....

jim_c

I have a good quality guage that I trust. The TPMS seems to read a little more than 1 psi high.