First off I don't really know what your situation is but before you take it in you should do the following.
1. Put the stock program back into the ecm so the gryphon display reads "0" in the upper right hand corner.
2. Remove cable and programmer from vehicle. Preferably with the key off.
3. When you get your vehicle back. Hook it up again as per manual instructions.
4. You will need to see if your HEX calibration code has changed. Not unless the dealer doing a reflash with the same HEX.
But its always a good idea to check.
5. If it has changed Bill needs to know pending weather or not he's writing tunes for you or he needs to totally rewrite them.
Peace!