Just took my 2012 T&C in for oil change and such and got the "M38 Recall" which has to do with reprogramming the transmission and then they have a new PCM update it says:
"PDSML 08-059-12 PCM 18-021-12"
so whatever that means it is out there in case anybody wants/needs it.

 

Not sure what "PDSML" is but there is a TSB 08-059-12 that deals with reprogramming the power sliding door modules. TSB 18-021-12 deals with reprogramming the PCM in regards to a over sensitive MAP sensor fault warning issue. M38 recall narrative is posted on this forum.

 

Just put 2000 plus miles on the van after the update and didn't have any shifting problems since they did the update, I also averaged 26 mpg while we were traveling.

 

I also got the update, I assume it's the same one. I occasionally used to get very hard shifts, but haven't had one since the update. Vehicle generally feels a little "peppier" too (that's the technical term...).