My daughter bought a used Chevy Cruze that came with just one key fob (fob has push-button-flip-out key).

My daughter asked me to help her get a second key/fob while she was away at college (left the car at home), so I called the local locksmith. He said he couldn't do it himself and gave me the name of a local mobile automotive key company that could help. I called them and within the hour we had the extra key fob programmed to my daughter's car. Cool!