These cars are full of all kinds of sensors.  They are on 24/7, even when the car is shut off. Have you checked your battery power?   When my battery was low, unknown to me, the car kept telling me that I need to either shut the car off or start the engine, even though I had driven the car for a day or two.   Others have had their door unlock ( when you touch the door handle ) fail to work.   It seems the issue arises randomly, not always the same exact issue appears.

One would think, that, if the dealership is going to have people open up a transmission, then, hopefully, that person is a Transmission Tech.  But, just because they opened it up and put it back together again only means they know the basics and are not a real Transmission Tech.   Dealerships I have dealt with in the past do not have Transmission Techs.  They farm out the work to a transmission shop.

Looks nice.  Before and after pictures would really show the difference / impact of the change.

Nice

Looks great!!!  Love the black honeycomb grill on my ST-Line.  I even swapped in a black honeycomb grill on my 2019 Fusion SEL hybrid.

I can send you a link to a site where you can download ETIS Offline; you can then run it using a virtual PC (VMware)—it has everything you need. Take a look at the site. I have it downloaded myself, but it’s 22 GB compressed, so I’m not sure where I could upload it. https://workshopmanuals.org/product/ford-mondeo-2014-2022-workshop-service-repair-manual-download/

Most dealerships I know don't have transmission experts employed.   My guess is that this dealership wanted to make a buck or two off the Ford warranty or 3rd party insurance.    It would be better to get a rebuilt unit from a transmission specialist company.

Well, that su**s.  Guess parts replacement didn't work.  If they rebuild it, hopefully their Transmission Tech knows what they are doing.  You just never know if they will rebuild or replace.

I don’t care for a lot of chrome and while the look of the Elite grill was OK, I have always liked the Ford honeycomb performance look grills.  My old grill will probably find its way on to my daughter’s SEL if she wants it.  If not I will save it.  I walked outside this morning to take the Yukon somewhere and admired the car and its new look.

Any update to any of these, I've been having these exact issues for nearly a year so long that it fried my bcm and had to be replaced.