Got lucky yesterday...last fall my TPMS light came on and one front tire pressure went blank on the cluster. Yesterday I picked one up at the dealer ($100) and went to my trusty tire shop for install. Because we didn't know which front it was he scanned them - turned out they were all working and just needed a relearn . Ha! got lucky for once and learned something.

Thought i'd pass it along for anyone experiencing a tpms issue, (that's not in the know) get it scanned before jumping to conclusions.
Luckily, for return, I bought mine locally - not as easy if I bought it online.

 

You can save yourself a trip to the tire shop for a relearn with this: https://my350z.com/forum/brakes-and-...ring-tpms.html

 

Or that