I recently traded in my G37 for another G37. The new G37 only came with one key and the dealer is okay with only receiving one of my keys. With that said, is it possible to program my old G37 key to work with my new G37? If it is, what is the cost associated with it?

 

I suspect you can have the old key programmed to the new car. As for cost, I think people have said something on the order of a hundred and twenty bucks. You could search for that just as easily as me.