Select model:2007 Cadillac D (DN) CTS-V passenger car
Then go to Vehicle Control Systems
Read vehicle info
Engine type: (U) 6.0L V8 LS2
Go to Module Setup
Then Remote control door lock receiver
Program key fobs…
Two key fobs to be programmed
Tips of programming key fobs:
All key fobs must be programmed each time any one fob is programmed.To program,press and hold the LOCK and UNLOCK key fob buttons prompted by the Tech2.Programming takes 15-30 minutes.