Replacement Immobilizer programming?

Okay, so you replaced the module in the steering column that reads the keys, correct? If so, you need a scan tool that can remove the old info from the system and then program in the keys you have. Be advised that many of the tools sold out there now have recently had updates to remove this ability so be sure the scan tool can still do this before you attempt it. A mobile locksmith might be a better option if they haven't updated their tools in a while.