I just bought ck916's (22") off of Craigslist. The seller said that he had new tpms sensors put in a few months ago. I believe him. When I put the new wheels on my Tahoe, I got the "service tpms system" error, which I expected. I know they need to be programmed. I am getting new tires installed but I don't want to pay dealer pricing. What are the chances that a local tire shop can program the tpms system on these new sensors? I talked to one shop and he said he has a couple tools to try it with, but he can't guarantee they will work. His tire prices are good but I don't want to get stuck having to go to the dealer to have them charge me like $150 to program tpms.