I believe this is the connector for the hood ajar sensor needed for remote start. It appears the one wire is purple which would confirm (the second wire would be black). The sensor installs in the slot just right of the connector.
Remote start is an option. I believe that the connector was prewired in 2013 and 2014 regardless if remote start was present. My 2014 came with the connector and I was able to add the remote start by installing the hood ajar switch and receiver cup attached to the hood. I have a convertible so the WCM (wireless control module) was already able to accept the remote start keyfob and only needed new keyfobs and a visit to the dealer to add the sales code for remote start. The 4-door sedan would need a new WCM to accept the remote start feature.