Not much of an update, but the vehicle was dropped off at the dealership yesterday and they verified that it is throwing the same code as before. Sat down with the gentleman that wanted to discuss "buy back" options which turned out to be nothing more than the dealer trying to convince us to trade in our jeep on a newer one. I don't really see the value in that. I'll keep updating as I get word from the dealer on the state of repairs.
Kind of figured that was what the dealer was pulling off. You just can never trust the sales department completly.
But your solution is simple!
You need a new transmission.
Some 2014 Cherokees are prone to transmission failures. Some sudden and some slow and painful.
Mid 2015 FCA started using a new hardware equipped transmission. They had some issues with the older one such as a snap ring positioning problem in the prior transmission.
If the snap ring pops your transmission is toast very fast.
They issued several updates most notably the RO1 to address this issue in the older hardware equipped transmissions. It was addressed only by way of a software update.
Most notably this software update removed 2 on the down shift. So in other words if you have not come to a complete stop and you attempt to accelerate you are accelerating from gear 3 and not 2.
The slower you are going in gear 3 the more of an issue you may get accelerating.
Also your TCM seems to be still struggling with some AL (adaptive learn). That is just a AI system the ZF uses to customize to a driver. That should not be an issue at 22k even with a new driver.
I suspect that was one of the reasons they replaced the TCM.
I had many of those same issues in my first 1,000 miles or so. But they went away.
*Your S55 recall was simply a software update and a test of the cable integrity to deal with a cable that would crimp. Limp mode was what it was suppose to do in the event of a problem.
Thus there is a problem.
As far as the issues of "not coming to a complete stop" those I believe are inherent with the software adjustments that FCA made to adjust to the hardware issue with the older ZF transmissions.
I deal with them and do try to avoid the situations of slow speed creep, especially when towing.
If replacing the TCM and new software have not resolved your gear hunting and funky gear usage then a new transmission will resolve your issue I am sure.
That 2014 transmission can have inherent issues and in my opinion should be replaced if software and TCM replacement does not fix the issue.
My dealer told me in 2015 when I had that transmission discussion with them: If I should notice a change in normal operation of it get it in and they will deal with it.
Mine has been perfect to date but still is a bit funky with that 1,2,3 gear downshift issue which I try to avoid. Any change in shifting like roughness, hesitation, and gear hunting it will be a new transmission. The transmission is a mechanical device and if one even one of the dog clutches are malfunctioning no amount of software updates will fix it.
Good luck and start pushing for a new transmission. I am sure the dealer on a trade in with you for a new vehicle will replace it under warranty and sell it on the lot.