I bought new fobs on eBay ...$40 for the pair. The dealer wanted $120 each and I was able to use my work discount and they still wanted $80 each, so I felt pretty good about that purchase.
I tried both those methods to program them and couldn't get it to work. So I ended up taking it to a Chevy dealer and that went pretty good. They only charged me $ 39 to program 2 fobs Which of course is more than I would like to pay but they Quoted me at $50 so I felt good about it.
I am into the 2 working fobs $80. With remote start. nice!
I am happy