This can only be done by a GM dealer.
its not possible you need a minimmum of two keys to program a new key you need your old key and a new one sorry.
Maybe you mean "migration". Which means to move all the date from the format of the old program to the format of the new program so that you can begin using the new program without losing any "legacy data".
look for the active retainer on the new switch,now look for it on the old switch around the steering culomn insert the old key and turn it to the the position which the retainer is going in....pull the key out with the cylinder switch and put the new one....
The dealers scan tool is required.
The key fob can only be programmed at the dealer.
The dealers scan tool is required.The dealers scan tool is required.
Try using old key turn from "Off to on" not starting car 7 times--remove and insert new key use same procedure--then try to start w/new key. If you have 2 "old" keys do the same thing with 2nd old key before using new
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roll it off a cliff
The Old and New Testaments
just flip de key and try again, the key is to old get a new one.
Former New Zealand PM John Key is 56 years old (birthdate: August 9, 1961).