The XC2 is locked to his vin code. To change that, go to www.sctflash.com
and download "live load". That program will allow you to unlock the XC2.
Note: I don't know if that will also erase all the bama files off the tuner or if it will allow you to connect to the vehicle while keeping the bama files and just re-downloading your stock file from your truck's computer.
Best person to ask would either be Doug (If you can ever get a hold of him) or Bob (SoundPer4mance).