What does this mean ?

Discussion in 'Gen 4 Prius Care, Maintenance and Troubleshooting' started by Taxi/Limo, Feb 29, 2020.

  1. Taxi/Limo

    Taxi/Limo Member

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    A fellow taxi driver had this message pop up on his dash

    Maintenance required for hybrid battery cooling parts at your dealer

    2016 150k miles approx
    Thanks
     
  2. jerrymildred

    jerrymildred Senior Member

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    My first guess would be a dirty or malfunctioning battery fan.
     
  3. RRxing

    RRxing Senior Member

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    Or just a clogged filter...
     
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  4. Taxi/Limo

    Taxi/Limo Member

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    What filter?
     
  5. Elektroingenieur

    Elektroingenieur Senior Member

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    The HV battery uses forced-air cooling, and the air intake, on the front of the right rear seat, has a filter. In the Owner’s Manual (PDF) for model year 2017, see pages 573–574. (The 2016 editions mention the filter but lack the cleaning instructions.)
     
  6. Mendel Leisk

    Mendel Leisk Senior Member

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    Probably filter and fan need cleaning. And the ductwork while you're in there.

    Toyota could use a bit more common sense in their warnings. Won't be happening tho.
     
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  7. Elektroingenieur

    Elektroingenieur Senior Member

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    “At your dealer” was changed to “See owner’s manual” for model years 2017 and later.

    Perhaps the designers didn’t anticipate frequent clogging of the intake with pet hair or other substances that could be removed effectively using a small cordless vacuum cleaner, as opposed to dust or dirt trapped in the filter itself, which requires disassembly to replace.
     
  8. CooCooCaChoo

    CooCooCaChoo Active Member

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    I should probably take a look at mine. Haven't even taken a look at it ever. Anybody know the part number of that filter?
     
  9. Elektroingenieur

    Elektroingenieur Senior Member

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    It’s G92DH-47070 for all fourth-generation Prius cars. See my February 2018 posting and this previous thread with pictures.

    (Prius Prime and Prius PHV use two filters, G92DH-47080 and G92DJ-47010.)
     
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