2012 prius not going into gear with flashing press park icon

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by CraigC, Jul 28, 2025 at 12:21 PM.

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  1. CraigC

    CraigC New Member

    Joined:
    Dec 27, 2024
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    Location:
    North Arkansas
    Vehicle:
    2006 Prius
    Model:
    Two
    I recently changed the hv battery in my 2012 gen III prius. Afterward it refused to Start/Run. When I try to start I press the start button but the ready does not come on. When I try to put in drive or reverse the press park icon comes on and starts flashing and it beeps continuously and does nothing else. If I press park the light goes off but comes back on if I try to go in drive.
    I read codes with Torque and a dongle. It did have the codes for a comm error to battery but it went away after I cleaned the battery connectors
     
    #1 CraigC, Jul 28, 2025 at 12:21 PM
  2. Leadfoot J. McCoalroller

    Leadfoot J. McCoalroller Senior Member

    Joined:
    May 12, 2018
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    Location:
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    Vehicle:
    2018 Prius c
    Model:
    Two
    safety plug all the way in? you pop it in, flip it closed and then slide it. 3 steps or no joy.
     
    #2 Leadfoot J. McCoalroller, Jul 28, 2025 at 2:17 PM
  3. CraigC

    CraigC New Member

    Joined:
    Dec 27, 2024
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    Location:
    North Arkansas
    Vehicle:
    2006 Prius
    Model:
    Two
    I have 2 safety plugs. Both have been inserted with a three steps. Still no joy.
     
    #3 CraigC, Jul 28, 2025 at 5:47 PM
  4. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
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    Location:
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    Vehicle:
    2012 Prius Plug-in
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    Plug-in Base
    how is the 12 volt health and connections?
     
    #4 bisco, Jul 28, 2025 at 8:48 PM
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