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Loss of Regen Braking?

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by kevelev, Jun 21, 2019.

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  1. kevelev

    kevelev Junior Member

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    So driving to work today the lights went off and all systems returned to normal. Strange...
     
    #21 kevelev, Jun 25, 2019
  2. Mendel Leisk

    Mendel Leisk Senior Member

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    Have you tried removing that?
     
    #22 Mendel Leisk, Jun 25, 2019
  3. kevelev

    kevelev Junior Member

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    Yes, I removed it right before starting this thread. So it's been a few days.
     
    #23 kevelev, Jun 25, 2019
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  4. kevelev

    kevelev Junior Member

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    Another Update: they came back on just before I got home. Seems intermittent.
     
    #24 kevelev, Jun 25, 2019
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  5. CR94

    CR94 Senior Member

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    Could be related to battery temperature. Are you monitoring it?
     
    #25 CR94, Jun 25, 2019
  6. ChapmanF

    ChapmanF Senior Member

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    Same codes? Or just the same warning lights?
     
    #26 ChapmanF, Jun 26, 2019
  7. kevelev

    kevelev Junior Member

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    No, I'm not monitoring the battery temp.
     
    #27 kevelev, Jun 26, 2019
  8. kevelev

    kevelev Junior Member

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    At least the same lights, I will have to recheck later today to see if the codes are the same.
     
    #28 kevelev, Jun 26, 2019
  9. Grit

    Grit Senior Member

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    This is the que for the “just drive it” motto folks to jump in to save the day.
     
    #29 Grit, Jun 26, 2019
  10. Mendel Leisk

    Mendel Leisk Senior Member

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    Ah ok, so that's ruled out.
     
    #30 Mendel Leisk, Jun 26, 2019
  11. ChapmanF

    ChapmanF Senior Member

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    The idea of the codes in #16 being related to battery temperature has just left me staring blankly into space, powerless to save any day at all.
     
    #31 ChapmanF, Jun 26, 2019
  12. Sonic_TH

    Sonic_TH Active Member

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    Any updates?
     
    #32 Sonic_TH, Dec 23, 2020
  13. Scott_K

    Scott_K Junior Member

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    I love looking up old threads like this describing my EXACT problem and never any update or follow up saying what the fix was....off to the next rabbit hole thread for me!
     
    #33 Scott_K, Nov 24, 2022
  14. bisco

    bisco cookie crumbler

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    you need trouble codes and the service manual
     
    #34 bisco, Nov 24, 2022
  15. ChapmanF

    ChapmanF Senior Member

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    Did you happen to follow the first page of this thread where it explained the importance of getting your trouble codes and how to do that?

    The service manual is less critical; there are a bunch of us who either have access or have seen at least some of the common trouble codes often enough to remember what they mean.

    This thread doesn't describe your EXACT problem unless you've read your codes and they're exactly the same ones kevelev posted (and not necessarily even then). But either way, once you've said what codes you've got, we can probably help some.
     
    #35 ChapmanF, Nov 24, 2022
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