I recently went through the same thing, the PCM de-energizing, I took it in and they flashed it. Fixed the check engine light issue but lost Drag and Track modes. Very upsetting.
I took mine in because I kept having check engine light issues, 4 times within 54 days, 14 of those days in which it was stuck at the dealership. When I got it back these modes were gone. No more check engine light, but if they sell us a car that has specific features listed that are big reasons...
I also have noticed flaws in small details of my car and losing Drag and Track modes really hurt the joy I have for this car considering how much I paid for it.