temperature warning light

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by mixap, Mar 25, 2026 at 8:56 AM.

  1. mixap

    mixap New Member

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    Location:
    Clarksville, Tennessee
    Vehicle:
    2012 Prius
    Model:
    III
    The temperature warning light came on for about 15 seconds this morning while driving. At first the engine seemed a little rough, not as smooth as usual. Then I heard a few clicks from the engine like something opened up then the light went off. Could it have been a fan or air passage opening up to cool the engine?
     
    #1 mixap, Mar 25, 2026 at 8:56 AM
  2. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
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    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    Potentially a blown head gasket, are you losing any coolant?
    How many miles on her?
     
    #2 bisco, Mar 25, 2026 at 2:08 PM
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