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2011 Odyssey LX, 120k miles
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2,141 Posts
I think you'll be OK with the extended warranty - good move there.

Prior to my 3rd AT replacement, I never got any CEL or codes. It would do the "flare" (that's the official word) on 1-2 upshifts when cold, as well as some other symptoms like a whining torque converter and delayed shifting out of park.

Depending on how long your extended warranty is, I would not worry about it. Let it get bad enough until it clearly breaks, then get a new AT. And THEN start doing things to take care of it. I would definitely NOT pay them to take it apart and maybe not find anything wrong. Standard Honda policy is to replace the AT when the P0740 code comes up, pretty much with no further diagnosis.

I would read the warranty very carefully and make sure you do everything right to get it covered when it happens.

There is a lot of info on the site about these AT problems and fixes, but as far as I can tell, there are no known solutions that have proven themselves for a significant length of time.
 

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2011 Odyssey LX, 120k miles
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2,141 Posts
It was about 1500 miles from when I first noticed the symptoms (it's my wife's car so I rarely drive it myself, and I was up in Lake Tahoe in the snow when I noticed it - the cold made it worse) until it was replaced.

But it never failed completely. The symptoms only got slightly worse during that time, meaning they would occur in warmer temp's rather than just when it was cold. I tested everything electrical and did everything I thought might help, short of replacing the AT, during that time. Still, no code was ever thrown during the entire time.

I've heard of people getting by for 10k+ miles with similar symptoms, as well as others getting stranded on the road after less than 100 miles. So you might want to get the AAA super extended towing insurance if you're going to be driving far from home.
 

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Registered
2011 Odyssey LX, 120k miles
Joined
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2,141 Posts
In case your symptoms are like mine, I found my original post after I had just noticed the problem. Definitely more detailed and accurate than my memory is now:
http://www.odyclub.com/forums/24-1999-2004-odyssey/82214-99-transmission-failure-imminent.html

Over the next 1500 miles and ~1.5 months, it got a little worse and definitely no better. If it weren't my wife's car, I probably would have driven it until it died, just to be sure.

And for me there was no CEL and no codes either. I had always wondered about it, but I can confirm one other time on a completely different part of the car when I had no CEL, but did have a code - so it can happen. I don't really know why they do that though.
 
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