Another self level inactive question

[Roadkill]

Socket, that's exactly what happened to me. That's why I threw that question in there. The TPMS system is monitored by the EHC2 module (Electronic Height Control 2 Axle) and when the module faults, it can through the TPMS light. Mine would happen only after 45 minutes or so of sustained highway driving. After 3 months of pulling my hair out, killcrap (member on this site) said to look at the EHC2 module. Sure enough, he was right. It's pricey, $640, but it fixed the problem. Thank god for aftermarket warranties.