HT,
Have you looked at the tpms units on the Sonatas for 08 (and most others I
assume)? It appears to me that they have a lithium cell (CR2032) and I asked
the service department on the servicing of these things. I guess I wait
until the TPMS light comes on? One of the techs suggested I go to nitorgen
(don't shoot me, just stating facts!) as an alternative to keep these things
rust/corrosion free. Why not use the ABS signal as an indicator? The
circumfrence of a tire changes a with it's pressure, right?
--
Steve, 2008 Sonata SE
http://lasvegas.craigslist.org/rfs/463926931.html