I have had the automatic temperature control in my 2018 mustang and have never used it, I prefer setting the temperature by hand and controlling it by fan speed and temperature setting. Once the car warms up or cools down I don't find it a problem at all to set the fan speed as a level that keeps the car a constant temperature. It is my belief, and I may be wrong, that the automatic system doesn't do as good a job as I do at keeping the temperature at a constant level without cycling the fan up and down which I do not like.