@Rhawkins52! ... Bob, are trucks are working as designed--I'll explain...
Tonight was the monthly home poker game I attend where one of the diesel mechanics from my Ford dealer also comes to play, so I explained our issue to him, or what I thought was an issue, and he described it is working as intended and told me what more to look for and how it is intended to be used and he described it just how
@wreedsvt described it above.
Here is how I validated it working as he described on my way home from the poker game...
1. I set the cruise control at 45 MPH
2. I observed on the display that it listed "45 MPH" as the set cruise speed
3. I press and held the "SET +" button, and observe the set cruise setting on the screen--it increments up very quickly and when you release the button it is going to continue accelerating the truck until it reaches the set cruise speed that is displayed at the time the button is released ("SET -" behaves the same), so one has to pay close attention to that set cruise setting on the screen when holding and releasing the SET +/- buttons
So, my truck is behaving as designed. I am just coming from a 2010 King Ranch that was much older technology and therefore have to learn how to operate my new truck on many fronts still--one of the benefits of being a member of the forum is that we can all share our knowledge with each other and save us some unneeded trips to the dealer. I have to admit that I am still overwhelmed with all the buttons in my cab and still haven't learned or pushed them all yet and I am just at 6,000 miles (I figure I'll sit out in the driveway and learn everything once we get out of the deep freeze up here).
As additional information, I experienced the runaway issue with "SET -" decelerating on the way to the poker game and that was also before I was observing the changing of the set cruise setting speed on the display as I was holding down the button.
It would be awesome if the rate at which the set speed changes when holding down the button could be slowed down with a FORScan mod--I don't recall this being in the FORScan spreadsheet, but now I am curious and will look into that as I am ready to make my next round of FORScan tweaks tomorrow (especially ready to disable ASS, I gave it a fair chance but decided it is time to disable it).
Do the trucks without the adaptive cruise control see the set cruise setting MPH on the display screen? Just curious on that.