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Old 08-23-2012, 01:10 PM   #1 (permalink)
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Thumbs up Software Update Releasing Soon-Torque Converter

I just saw from a source that certain MDX's are going to do a software update that relates directly to the problem I had, a mild jerky feeling when driving from 20-40mph which relates to the torque converter. It's recall 12-029 from what I saw and is due to start sending out letters next month. I read that to build "confidence" in acura the warranty for 07 and other models has been extended to 8 years 105,000 miles! I hope this software update fixes the issue. If not, they stated they will replace it under warranty!
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Old 08-23-2012, 03:18 PM   #2 (permalink)
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I just saw from a source that certain MDX's are going to do a software update that relates directly to the problem I had, a mild jerky feeling when driving from 20-40mph which relates to the torque converter. It's recall 12-029 from what I saw and is due to start sending out letters next month. I read that to build "confidence" in acura the warranty for 07 and other models has been extended to 8 years 105,000 miles! I hope this software update fixes the issue. If not, they stated they will replace it under warranty!
FYI, Service Bulletin 12-029 applies to 2007-09 MDX, 2009-10 RLs, and 2009-11 TLs with SH-AWD. A letter also went out regarding a warranty extension for the torque converter for the affected models.
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Old 08-23-2012, 10:01 PM   #3 (permalink)
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Anyone have the link to the TSB? I've noticed that our MDX is very jerky during lower speeds. We have Acura care so it should be fixed without any issues.
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Old 08-24-2012, 06:45 AM   #4 (permalink)
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Thanks for posting this. I have an occasionally mild vibration with what I think is torque converter.

I have 96k on my 07 MDX so the goodwill warranty on torque convertor will only apply for a year for myself.

Do they apply it for free?
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Old 08-24-2012, 07:19 AM   #5 (permalink)
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Anyone have the link to the TSB? I've noticed that our MDX is very jerky during lower speeds. We have Acura care so it should be fixed without any issues.
You can search ALL service bulletins here:
Honda TSB - Information About Honda Technical Service Bulletins | AutoMD
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Old 08-24-2012, 08:56 AM   #6 (permalink)
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Yes the service bulletin is free of charge because you are now covered under their warranty of 8 years or 105k miles. I'm going to go to the dealer to have this done this evening, will post results.
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Old 08-24-2012, 06:28 PM   #7 (permalink)
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Update: just came back from the software update. The drive is much better but it's still a hint, very lightly feeling this lunge. It's the torque converter locking and unlocking. But it doesn't happen as much and seems to drive a bit better.
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Old 08-24-2012, 10:07 PM   #8 (permalink)
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I had my software update too, after the update it felt better but the shudder was still there not as bad. I took it back to the dealer and they performed a transmission fluid flush now it drives perfect no more shudder around 30 mph
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Old 08-25-2012, 07:13 AM   #9 (permalink)
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I can't find the 12-029 there? Anyone wi a 07-09 have this applied? Does it make the mdx as peppy as the update for 2010+?
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Old 08-25-2012, 07:58 AM   #10 (permalink)
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I had my software update too, after the update it felt better but the shudder was still there not as bad. I took it back to the dealer and they performed a transmission fluid flush now it drives perfect no more shudder around 30 mph

If it's still there you can push to have the torque converter replaced, it lists that right under the bulletin (which they have). It states that if problem happens after the software update, the torque converter needs to be replaced.
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Old 08-25-2012, 12:51 PM   #11 (permalink)
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I had my software update too, after the update it felt better but the shudder was still there not as bad. I took it back to the dealer and they performed a transmission fluid flush now it drives perfect no more shudder around 30 mph
I was able to cure the shudder with a 3x drain and refill. If the software update makes it drive better then I'll take it in.

What I need to get fixed is a thump or clunk I hear during my first drive in the morning when shifting from second to third. It only happens one time during the day. If I give it a little extra gas, then it won't do it. Weird>
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Old 08-27-2012, 01:42 AM   #12 (permalink)
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I can't find the 12-029 there? Anyone wi a 07-09 have this applied? Does it make the mdx as peppy as the update for 2010+?
Should I just take my car in for a routine oil change and ask about this?
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Old 08-27-2012, 07:46 AM   #13 (permalink)
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I would call the dealership to verify that they do have the software first, some don't know how to do anything until their IT guys come out. If they do then just bring it in.
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Old 08-30-2012, 11:48 AM   #14 (permalink)
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I don't know if I have the problem...but they are doing the update tomorrow. Any other feedback in terms of how it should feel after? What exactly will the update do to affect the torque converter?
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Old 08-30-2012, 11:57 AM   #15 (permalink)
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The problem that I had was around 25mph and cruising in 3rd gear AT and if I let go of the gas there were be a slight lunge after it paused for a second, it's not the tranny shifting because the rpms didn't drop as it would have if it shifted to 4th. It doesn't say what the software does but it does help out a bit. However I noticed it's still there a little and just had my dealer take "snapshots" of it through the obd II port to see if there is an issue. Then have a 20 year old tech try to analyze it and see if it gets sent to acura for warranty coverage.
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