I have an IPD Bulletin IPD -PI-391
which outlines the proceedure and gives you the adaptation protocol.
My transmission shop does not recommend a flush with 180,000 - to risky to mess up clutch packs - just drain and refill - and he is willing to do the job and the adaptation.
Then after a few weeks if still issues will do the software
The dealers first want to diagnose your unit $$ to let you know all thats wrong in my opinion - before doing this proceedure which has been around for a while - most claim they are 'unaware' of it
Thats my take anyway
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