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Transmission Update from Dealer?

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Old Sep 16, 2018 | 04:20 PM
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tillter123
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Transmission Update from Dealer?

Hi, I just started reading the forums and have found a couple threads from a couple years ago that mention a transmission update from the dealer, but I cant find anything saying what it actually does. How would I check to see if my car has this update and if it doesnt what would I ask the dealers for to get it?
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Old Sep 16, 2018 | 08:06 PM
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A dealer can tell either with your VIN # if it was done under record, or by plugging into your car with their scan tool to see what version your car has currently.
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Old Sep 16, 2018 | 09:10 PM
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Thanks for the reply! What would the updates do for the transmission? Improve shift times?
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Old Sep 16, 2018 | 10:34 PM
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Not 100% sure. From what I’ve read, mostly downshifting issues and harsh shifting issues. When I first got my G, I had poor shifting. Surprisingly, I disconnected the battery and installed a grounding kit, and never had the issues again. Not sure if the grounding kit or a battery reset cured my issue, but one of them did, and I never pursued the transmission update. If you search this forum, you will find tonnage of information on the subject, including a TSB about the update.
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Old Sep 17, 2018 | 01:33 AM
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My 2011 was updated in early 2012. Shifting in D was much improved with less hunting and hesitation. DS was neutered IMO! Not as quick to downshift when getting on the binders. Overall It was a good fix overall.
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Old Sep 23, 2018 | 03:43 PM
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I had two of these TSBs installed by dealer:

http://www.infinitig37.com/TSB/ITB10-075a.pdf
http://www.infinitig37.com/TSB/ITB12-027c.pdf

May be what you're looking for. Definitely improved the smoothness of shifting as well as rev-matching quality.
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Old Sep 28, 2018 | 11:12 AM
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Wow, thanks for the PDFs, I have all those symptoms. I just figured that's just how it is, didn't know there was a fix for it.

When I go to the dealership, do I tell them specifically what I need or just say the trans is shifting poorly? Also, will they be able to tell or look into things that would let them know I have an ecutek flash?
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