Has anyone had luck programming a new key fob with the instructions in the manual? I have a 2018 Yukon XL SLT with one remote and key and the 2nd remote was missing when I purchased but have the 2nd key. Dealer got me a new remote and cut the key and is mailing as I don't want to drive an hour one way. Just want to make sure I can program it like the manual says. Sent from my iPhone using Tapatalk