[MattBianco]

General consensus based on my lay research is that if you do engine coding, you are SOL when it come to warranty. But, if you are coding your mirrors to fold with lock, door handle lights to come on in reverse, splash screen to show a Christmas greeting, fog lights to turn on in reverse......things that the car is designed to do for other markets, then you have a defensible position on warranty issues. Turning off safety features (warnings, bells, disclaimers, video lock in motion) will likely get you in hot water with your insurance company if there is a serious incident as even some of those attributes are unlocked for some markets; you don't want to sell your car if you have coded away warnings.

Even the ACC in F series has a coding selection (not re writing code) to reduce the minimum distance between you and the car in front, and settings to unlock WB radio, recognize blind spot below 35mph.....none of these risk warranty damage. Change the power management settings or alter their mapping and they will know, even if you undo it.