I have a similar issue with my 2011 coupe. It worked fine until I deleted the previous owners list. Ever since then, when I try to store a number with a name tag, it takes note of the number that I give, it repeats the number to confirm it, then it asks me to give it a name tag and not to mention any numbers, then immediately signs of with a goodbye thank you without recording anything.. ? I've tried to delete any other list or paired phones that may be lingering in there.. somewhere..? But it tells me there are no list. I've re-paired my phone to the system. Now, calling out with a (digit dial) call works fine. Before deleting the list, I could (store number) call out using name tags.. It was working perfectly well ! When you call GM for tech support, they are at a lost and suggest that I bring it to the dealer.. I'm 100 percent sure that all it needs is a reset..
Anyone.. ?
Anyone.. ?