Talked to dealership in Lafayette Indiana. They stated that Bulletin 27-19-P056610 should solve the problem with the rough shifting between gears.. They have performed this and it has solved the problems. The problem is to get a dealership to actually do the work the bulletin says to do. I am bringing my car into Motor werks in barrington on Monday and I will let you know if it solved the problem.

 

Please do so. Many people will be interested to know. I believe this is same as trans. jerk when cold. Some people has problems during upshift between 4th and 5th gear.

 

Mine was rough downshifting from 5 to 4... And then 3 to2

 

I'd love to hear how this goes. I'm having the same issues.