I switched out the OEM steel wheels from some nice alloys soon after I bought my 2018 Tundra 4x4 ~3 months ago, and my TPMS system has been throwing an error code ever since. The sensors had to be changed with the switch from steel to alloy, and with with alloy sensors on backorder with Toyota, I had no choice but to let Discount Tire put theirs in. After spending some time trying to figure out why the system wasn't working, they told me to take the truck to the dealer (huh?). After doing some research, I'm told that Bartec, the company that manufactures the TPMS tool the big chain uses, is currently working on an update for the tools to work with the new Tundra TPMS. Just called Discount Tire, and got the same "call back in a couple of weeks" answer I got before. Has anyone found a solution for this, or are we stuck driving around with a big yellow error light on the dash and no TPMS indefinitely? Seems like slow progress, given that manufactuerers make TPMS changes regularly that require these updates. I was a bit surprised that DT was so clueless on this, and that they sent me to figure out the issue...