2012 gen 3 head gasket repair. P0016 and cannot clear "check hybrid system. Maintenance required"

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Louhazosc, Jul 17, 2025.

  1. ChapmanF

    ChapmanF Senior Member

    Joined:
    Mar 30, 2008
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    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    You can see the pulley mark next to the 0° mark on the timing cover, without removing the pulley.

    If you want to see the yellow chain link next to the timing mark on the crankshaft sprocket, you can see that by removing the pulley and squinting in past the oil seal.

    [​IMG]