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Took mine in yesterday to get this update done. I don't even know if I have the idle issues but definitely the hard/rough shifting issue when going into Sport mode after driving in normal mode for a while. Got fed up with it on the other night coming home. Told the dealer that I had the idle fluctuation issue along with the rough shifting that I had told them about last year when I went for an oil change. I gave them the printed TSB and asked them to do the update. Took about 10 minutes explaining how it is intermittent and only happens after driving for a while in normal mode so he would understand....not sure it was being processed by the service writer. The TSB came out after my last visit so wasn't aware at the time. Maybe I shouldn't have mentioned that I had the rough shifting but thought that might put them over the edge on any hesitation....well, maybe it did. They performed the update and told me that they couldn't duplicate the problem, blah, blah, blah. I asked whether they did test drive before they did the update....he wasn't sure....duhhhh. My fall back was going to be that the TSB talks about the idle fluctuation being after driving 25 miles....were they going to drive 25 miles....if so, I'm going with them. Didn't happen and the update was done so hopefully, the problem is solved. Seems ok on the short trip home last night. Will report and vote later when I know for sure whether problem is solved. What I don't get is why the TSB doesn't mention rough shifting or any of the other issues that seem solved in this thread. Thanks for posting this thread and the TSB's on the other.
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