I always say that there’s nothing about my Hyundai I don’t like and that’s a lie. There’s one thing that is sub-standard IMHO and that’s the TPMS. My old car (2008 Torrent) had a TPMS that told you the pressure of each individual tire but this Hyundai does not. When you have low tire pressure, it shits up a message about low tire pressure that can’t be cancelled and doesn’t tell you which tire is low or how low it is.
It wouldn’t be a problem except for whenever the overnight temperature drops below about 45 degrees, one tire loses a bit of pressure down to about 28/29 psi and the threshold for throwing a low tire pressure error is 30 psi. If I don’t do anything the tire will stay at that level for however long I don’t fill it and ride/drive just fine. If I fill it and it’s a day like today (daytime high of high 60's and down to the 40's overnight) the tire will be low in the morning again.
What causes this? Is this a bad bead on the tire or a problem with the TPMS valve?