What is this part?

Discussion in 'Prius v Main Forum' started by MattFL, Sep 28, 2025 at 4:11 PM.

  1. MattFL

    MattFL Member

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    Can anyone identify this part, from a 2012 Prius? We had the A/C evaporator replaced about 2 weeks ago, just today we went into the cargo area and found this sitting there, they apparently forgot to put it back. Am I correct guessing it should go around the traction battery somewhere?

    upload_2025-9-28_16-10-42.png

    upload_2025-9-28_16-11-8.png

    upload_2025-9-28_16-11-43.png
     
  2. ChapmanF

    ChapmanF Senior Member

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    Looks to me like what sits over the 12-volt battery in the aft starboard corner of the car.
     
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  3. rjparker

    rjparker Tu Humilde Sirviente

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    Looks like it fits over the 12v battery or the similar opening on the left.
     
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  4. MattFL

    MattFL Member

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    Ah you guys could be right, thank you! I'll check that area out.
     
  5. bisco

    bisco cookie crumbler

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  6. ChapmanF

    ChapmanF Senior Member

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    Looks like someone separated it from the flat carpeted piece that attaches on top of it. Me, I always just take mine out as one piece. I haven't unclipped the top piece from it.

    Did they just sort of put the top piece back over your 12-volt battery, hanging by the edges?

    Do you have a non-original-size-shape battery back there, that this support piece won't fit over?

    Or does 2012 just have one wide deck board all the way across, instead of separate pieces in those corners like my 2010?
     
  7. Air_Boss

    Air_Boss Senior Member

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    Our 2012 v Five has no such aux battery cover.
     
  8. ChapmanF

    ChapmanF Senior Member

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    Hmm, interesting. This is the Prius v forum, but the OP just says a 2012 Prius.
     
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  9. bisco

    bisco cookie crumbler

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    maybe they left someone else's part in there.
     
  10. Paul Gregory

    Paul Gregory Senior Member

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    It's the right shape to fit into the rear fender well.
    What fits into it, I don't know.
     
  11. RRxing

    RRxing Senior Member

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    Looking up the part number might help... ;)
     
  12. ChapmanF

    ChapmanF Senior Member

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    The one in my 2010 liftback looks very much like that (from memory, I haven't run out just now to bring it in or take photos). OP's first photo shows its normal orientation. Third photo shows it upside down, looking at its black-felt-covered 'feet'. The tall feet on the inboard edge rest on the hatch floor sheet metal. The shorter feet rest on the top of the 12-volt battery.

    The notched tops of the 'buttresses' along the inboard edge support the lip of the big black cargo tray (so, the cargo tray must be taken out first, or at least lifted, before this battery cover can come out).

    The one in my car is topped with a flat carpeted piece, missing in the OP's photos, of matching height with the carpeted deck board that lies over the cargo tray and serves as the carpeted bottom of the hatch area.

    I might have to go look more closely at mine to be sure whether the flat carpeted piece can be removed (if it can, I've never done it), leaving the substructure as above, or it's really just a single piece in my 2010, as I have always thought.

    Nah, being too lazy to stand up and go out to the car ... screenshotting the 2010 and 2012 Prius owners' manuals side-by-side shows they did change it: one piece on the left (2010), "deck board" plus "battery cover" on the right (2012).

    [​IMG]


    When I added some fuses and stuff above the battery in my 2010, I did have to pay a bit of attention to not having my added stuff be right where those short felt-padded feet sit on the top of the battery.

    [​IMG]
     

    Attached Files:

  13. Air_Boss

    Air_Boss Senior Member

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    Nothing like this in the v…
     
  14. MattFL

    MattFL Member

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    I don't remember the fuses, but the manual pictures above look familiar. It's my wife's car and I haven't had time to get out to it to figure it out yet, but I bet that's it. I'll post back after I verify this is what it was.

    This was a small private shop so we were almost surely the only Prius there at the time, so it must be from our car. Also we have the OEM size battery.

    Regarding Prius V: my apologies, I thought I picked the regular Prius forum. We have the regular Prius, not the V.
     
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  15. Air_Boss

    Air_Boss Senior Member

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    May look into one though, as a positional spacer for the aux battery compartment.
     
  16. ChapmanF

    ChapmanF Senior Member

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    The photo with the fuses was from my car, where I added the fuses. They're not stock. It went with the part where I said when I added the fuses, I had to be careful not to have anything right where the felt-tipped feet of that part have to sit flat on top of the battery.