Gen 3 inverter recall, do they have it together yet?

Discussion in 'Gen 3 Prius Main Forum' started by chuckiechan, May 26, 2019.

  1. chuckiechan

    chuckiechan Junior Member

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    I’ve been holding off because I’ve been hearing the fix is not all that reliable. It has to do with replacing converter box. Any news on this?

    I’m about to get it done.
     
  2. Grit

    Grit Senior Member

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    o_O
     
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  3. ChapmanF

    ChapmanF Senior Member

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    That must be the "if there's a recall like that I haven't seen it yet" emoji.
     
  4. bisco

    bisco cookie crumbler

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    aren't all the stations coming in?
     
  5. chuckiechan

    chuckiechan Junior Member

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    Wow, this used to be such a nice place.

    “Hybrid System Software Update” NHTSA RECALL NO. 18V-684”

    I had heard earlier that the software update, was not a complete fix and they are working on it.

    Anyone hear any recent news?
     
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  6. Mendel Leisk

    Mendel Leisk Obtuse Angler

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    I'd take the fixes as they come. That what I did, no problems. Waiting around, I think you're just running more risk of blowing the inverter, with hard acceleration. And maybe creating an argument for Toyota to not honour the warranty?

    I think the main issue with the first fix, was that it was effective IF done right, but it could be mis-applied. The instructions were confusing, some service departments didn't complete it properly?

    I've got a vague recollection @ChapmanF knew the ins-and-outs of that.
     
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  7. bisco

    bisco cookie crumbler

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    c'mon, we're just joshin'. i haven't seen any changes. there are several very good threads see you should read through.
    i don't think toyota's solution is perfect, but who knows.
     
  8. Raytheeagle

    Raytheeagle Senior Member

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    It’s always hard to have the answer all of the time ;).

    I had the J0V software flash done awhile back and our 2010 was fine. No signs of anything. And I had 200k miles on our 2010 when I sold it last month:).

    But I’m just one data point(y).
     
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  9. ChapmanF

    ChapmanF Senior Member

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    OK, but that's just the J0V recall. It's a firmware reflash, nothing to do with "replacing converter box". That's why I thought you might be talking about some other recall I had never heard of.

    The initial announcement was an 'interim' one, J1V, just saying the fix was being worked on. The final announcement, J0V, came out on December 20th with the actual updated firmware.

    I had mine reflashed. No crazy special effects or anything.
     
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  10. Mendel Leisk

    Mendel Leisk Obtuse Angler

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  11. ChapmanF

    ChapmanF Senior Member

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    Different issue. There's actually enough stuff in the inverter (and even in the firmware for the inverter) for more than one problem to exist.

    The later recall fixes two things:

    1. The earlier recall fixed one path in the firmware where an unexpected condition could lead to a power-off when limp-home mode was supposed to happen. But it turned out there was also another path in the firmware where a (different) unexpected condition could lead to power-off instead of limp-home, so that's fixed in the later one.

    2. The earlier recall was supposed to update some MG firmware to guard against a possible IPM failure in some load conditions, but a small fraction of recalled cars didn't get that particular update because one place in the technician instructions didn't show that step (even though it was mentioned several other places in the same set of instructions, and most of the techs got most of the recalls right most of the time).

    The later recall does involve making sure cars that had the earlier recall really do have the right firmware for that one. So, for the cars that didn't, the two recalls do overlap in the issues they address.
     
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  12. Mendel Leisk

    Mendel Leisk Obtuse Angler

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    I heard too, there's a component, physically within the inverter housing, and subject to failure, that Toyota is deeming to not "be part of the inverter". Does that ring a bell?
     
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  13. ChapmanF

    ChapmanF Senior Member

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    I don't know. I myself posted on a different thread recently where somebody had a code for the DC/DC converter and another poster wanted to make that out as somehow connected to the IPM issues, just because the converter is also contained in the "inverter/converter assembly", the full name of that box there.

    I guess it wouldn't surprise me if Toyota finds themselves now and then having to explain that too.
     
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  14. chuckiechan

    chuckiechan Junior Member

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    Great advice! I’ll be getting it done ASAP... I knew you guys were still up to it! LOL.

    I apologize for expecting you to have your crystal ball ready on a holiday weekend to suss out exactly what my question was....

    Cheers, and thanks again!
     
  15. CR94

    CR94 Senior Member

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    I had the J0V update recall done a couple of weeks ago. No problems. Service writer claimed they've never encountered a failed inverter (or IPM or other subcomponent thereof).
     
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