Red triangle and check engine sign

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by JamesMN, Jun 17, 2021.

  1. JamesMN

    JamesMN New Member

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    I have a 2009 Prius. Recently it shows red triangle and check engine sign. I went to a shop got a scan. It says the cooling of the battery is the problem. Not sure it is the fan or coolant too low? Appreciate help
     
  2. rjparker

    rjparker Senior Member

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    The hv battery is air cooled with a fan. Probably it is failed or blocked.
     
  3. JC91006

    JC91006 Senior Member

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    is the problem an inverter pump failure? If you went to a shop that left you thinking it's either coolant or fan, it probably wasn't a mechanic shop?
     
  4. Kadir

    Kadir New Member

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    if cooling of the battery is the problem then cleaning the hybride battery fan might help. there are videos on Youtube explaning how to do this if you are a handy person.
     
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