Jaaaaay

I'm trying to pair/link/program the factory installed remote start remote with the remote start system in the car. I don't know of its possible for me to do or if a dealer has to do it.

Bought a new legacy (2011) with OEM remote start. Remote is not paired. Is this something I can do myself, or do I have to take it to the dealer? I found the steps below online, but they don't seem to be working. Any help would be greatly appreciated. Steps I found that AREN'T working: Open drivers door turn key in ignition from lock to on to lock to on to lock to on Hit remote button once turn key to lock