Thank you my car and donor car are both 2015.Use the TCM from the donor, it will already have the correct IP char settings for the tranny. You'll end up paying the dealer for an IP correction if you use your existing one. I know for certain the tranny wiring is identical on '13~'15 and '16~'18, but I'd double-check if you're crossing that boundary with the swap. If so, post back with the exact MY data for both vehicles and I'll advise if anything needs to be tinkered.