Bought the truck used in June of 2023 with 17k miles on it, transmission shifted rough sometimes but not all the time, and it wasn’t terribly severe when it did. Resetting the adaptive learning tables whenever it started to misbehave would help smooth it out for a few thousand miles. I think I reset it a total of 3 times.

A couple months ago, around 32k miles, things quickly got worse. It started to shift much more rough between gears 1-5, and when downshifting from 10th gear after giving it a quick boost of throttle on the highway. It got so rough that it felt like I had just got rear-ended. In addition to that, a few times the truck would not go into 10th gear no matter what I tried (speeding up and slowing down, going heavy on the throttle and going light on the throttle, switching drive modes, trying to shift it manually). And a couple other times, the gear indicator would hunt between 4-1-4 and the truck felt bogged down and had no power.

Took it to the dealer and they condemned the transmission after trying to reset the adaptive learning tables and applying some TSB’s, it actually behaved worse afterwards. Dealer is replacing it under warranty at 34k miles. They admitted that they see a lot of 10-speeds with issues and repair a lot of them, but they usually stay fixed after they’ve been repaired. We shall see. I’m lucky that this happened under warranty, I’ve heard this is a $11,000 ordeal if outside of warranty.

Update from Oct 1, 2024: After having the truck back for about a month, the new transmission seems to be working very well. It will still occasionally have a funky/rough shift here and there, but even those aren't as harsh as the rough shifts from before. I think the occasional rough shift is actually normal based on the amount of adaptability and electronic components that go into making this transmission shift.

The specific failure of my old transmission according to the dealer was a defective CDF drum (very well-known design flaw) that inhibited proper fluid flow to all clutch packs, which allowed for an eventual failure of the B and E clutch pack control circuits. The new transmission assemblies have improved CDF drums with an updated design.

So this vehicle was purchased in September 2022. Shortly after purchase, I noticed the transmission shifting harshly, skipping gears and a clunking noise. I reported this to the dealer where it was purchased, they did the standard reset of the adaptive learning. I returned a few weeks later reporting the same issues. I was told, this is normal behavior. They also stated they receive 20 to 30 complaints per month about the transmission. I find this incredible that Ford refuses to acknowledge the problem with this transmission when it's been happening since 2018. I see complaints on forums and other internet sites. I have talked to other F150 owners who report similar problems. I am hopeful the latest class action lawsuit will force Ford to own up to this and provide remedy to owners.

Several problems with the 10-speed automatic. Poor shifting - skipping gears, going into gear with hard engagement and an abrupt "clunk". The first time this occurred, I was coasting down a small hill toward my driveway, then gave it a bit of gas to turn in. The noise was so sharp I literally looked in my mirror to see if I had hit something, or if something had broken off. This issue occurs occasionally between 1st to 3rd gear (often 2nd is skipped), and from 4th down to 3rd, with the downshift being the worst.

Also, there is a lot of drag in the transmission. The truck has tremendous power but driving is is like the parking break is on. Like riding a thoroughbred with an anchor. It wants to go but something is holding it back - drag through the drive train. (Yes, parking brake is off, it's in normal mode, 2H etc.). It's easy to test when coasting - coast in gear and it is slowing down, put it in neutral and it coasts unrestricted. It feels like you are either accelerating or decelerating.

An internet search shows this is probably the 10 speed shared by GM and Ford with known issues. I took it to the dealer who was useless: I called Ford Care which was more than useless.

Bottom line, I would not have bought this truck like this, and cannot recommend it to others.