New Auxiliary battery installed but warning light keeps flashing

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by RandyRucker, Nov 12, 2020.

  1. RandyRucker

    RandyRucker New Member

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    Nov 12, 2020
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    Location:
    CA
    Vehicle:
    2015 Prius
    Model:
    Base
    Just installed a new auxiliary battery but the warning light keep flashing when the car is off (not while driving). Does this indicate there's still an issue, or does the light need to be re-set for some reason? We called the AAA guy who put the new battery but he says he's never seen this before. Any ideas?
     
  2. bisco

    bisco cookie crumbler

    Joined:
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    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
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    Plug-in Base
    there is always a light flashing with the car off. which warning are you seeing?
     
    pjksr02 likes this.
  3. Grit

    Grit Senior Member

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    “Warning light” doesn’t exist on this vehicle.
     
  4. RRxing

    RRxing Senior Member

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    Sounds like the immobilizer light. It should flash when the car is off to let you know its working.
     
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