I just relearned 2 remotes on my 2010 Traverse.
I used method 2.
My manual says 15 seconds... but in reality all it took was about 5 seconds or se before I heard a beep beep chime.
One battery in one fob was not working. (there was some sticky stuff on the battery contacts) and the fob had not worked in a while-- I put a new battery in and the remote still wouldnt work- when I relearned the FOB it worked.
So I suggest you try a new battery in at least one.
I used method 2.
My manual says 15 seconds... but in reality all it took was about 5 seconds or se before I heard a beep beep chime.
One battery in one fob was not working. (there was some sticky stuff on the battery contacts) and the fob had not worked in a while-- I put a new battery in and the remote still wouldnt work- when I relearned the FOB it worked.
So I suggest you try a new battery in at least one.
