Contrary to his father's warnings, my son continued to drive his Crossfire with an intermittent sticking ignition key. One day it would not turn at all, and it was stuck in his apartment parking lot. We had to drill out the stuck lock pin to get the ignition switch assembly out, and then do the modification to the assembly.

There is no requirement to have any new programming, new tumbler, or keys. This is entirely just a mechanical repair.