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  1. R F
    Post

    Engine temperature warning light

    Yes, no error codes could be found with ODB2 reader (carscanner). WIll hookup my Techstream to search deeper. Cooing temperatures are fine when...
    Post by: R F, Jan 8, 2026 at 1:33 PM in forum: Gen 3 Prius Technical Discussion
  2. R F
    Thread

    Engine temperature warning light

    My 2012 Prius sometimes shows a high (coolant) temperature warning light. Symptoms: 1) always after cold start 2) Cabin heating stays cold...
    Thread by: R F, Jan 3, 2026, 3 replies, in forum: Gen 3 Prius Technical Discussion
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