I actually thought the same thing when I got the car and found out it had AHC which works all the time will change out when the system goes, I do notice it working alot, but so far so good, Ironman will be a good choice but I hope the AHC will keep on trucking. Got a Sunroof issue does not go to full seal when sliding forward? getting water in the front passenger foot well pretty sure waters coming from sunroof. Abs Lights are on. I changed the Clock Spiral cable which affected the horn, Airbag light was on and the cruise control. Otherwise I do now understand completely how everyone loves these trucks, but small small issues if not addressed will pile up to something big if not taken care of!