Hybrid Relay Control

Discussion in 'Gen 5 Prius Technical Discussion' started by roguetadhg, Feb 14, 2026 at 3:23 AM.

  1. roguetadhg

    roguetadhg Junior Member

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    I'm looking to get another Hybrid Relay Control for my 2023. Hey. It lasted me nearly 100k, so it could be worse!

    I've been looking for steps for getting to the battery and taking the battery apart - but I haven't found anything.

    I'm also pretty concerned about the HV. But I'd rather do the work myself.
     
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  2. ChapmanF

    ChapmanF Senior Member

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    A backwards-looking question or two might clarify things...

    What do you mean when you say Hybrid Relay Control?

    Can you point us to a source or sources you were looking at that told you this Hybrid Relay Control is a thing?

    Why are you looking for another one?
     
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  3. mva

    mva Member

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    It seems extreme to be taking the traction battery apart on a pretty new Prius, especially when there’s a 10 year warranty on it. But…here’s a video showing how it comes apart:

    https://youtu.be/__m5YeRtGkQ?si=_Pxc1Sn775TVDTFN
     
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  4. Gokhan

    Gokhan Senior Member

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    I guess the OP means the battery computer or something similar. You would think the entire hybrid system would still be under warranty. It is also rare for Toyota hybrids to have such problems within 100k miles, so hopefully this is an isolated case.