Thanks for the response. It sounds like there must be a problem with the system. I am not unfamiliar with automatic climate control works, and understand what you are saying but if I set the temp to lowest temp or highest temp the auto setting for med and high are still the same speed. Example,
I get in my car after work and its sunny outside, very hot inside the car, if i set the temp to the lowest temp and cycle through the auto fan speeds low, med, and high. The fan does change between low and med but high is the same speed as med. High never gets close to max fan speed. If i turn the dial up one click while fan is in auto lo. The second led lights up and screen says fan speed 2. If i turn the dial up 1 click from auto med 4 leds light up screen says fan speed 4. If i turn the dial up 1 click from auto high 4 leds light up screen says fan speed 4. Thats with the temp control set to coldest setting or hottest setting.
I hate taking our lincolns to our 2 local dealers with or without warranty. They never have a loaner vehicle and take forever to do anything. A typical oil change will take 3+ hours, with an appointment set 2 weeks in advance.