Check Hybrid System Status message

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by William Amos, Oct 30, 2016.

  1. William Amos

    William Amos New Member

    Joined:
    Oct 30, 2016
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    Location:
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    Vehicle:
    2010 Prius
    Model:
    Three
    Went out to the 2010 Prius (200366 miles) today and got the Hybrid status message on the screen. Did some research and the most common cause seams to be the Aux battery so I replaced it noticing the one in the car was from the factory.
    No help ran a scan tool and pulled up message U0100 Lost Communication With ECM/PCM "A"
    Im at a loss to which way to go checked connectors and fuses.... ect. Also engine never starts and the car in not able to go into drive.

    Any help would be greatly appreciated.
     
    #1 William Amos, Oct 30, 2016
    Last edited: Oct 30, 2016
  2. Mendel Leisk

    Mendel Leisk Senior Member

    Joined:
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    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    I would just throw in the towel and take it to dealership, but that's me. I do know the message "CHECK HYBRID SYSTEM" can mean pretty much anything.

    If it's the hybrid battery (and it sounds like it is) it's likely still in warranty, barring high mileage.
     
    #2 Mendel Leisk, Nov 1, 2016
  3. William Amos

    William Amos New Member

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    Location:
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    Vehicle:
    2010 Prius
    Model:
    Three
    So here's an update the "Hybrid System" message has went away so it may have been the Aux battery. The engine starts but I now have a P0453 message with a u0100 ecu message, but the car now runs and moves. I will cont. to T/S tomorrow.........
     
    #3 William Amos, Nov 1, 2016
  4. Mrs.Diamond

    Mrs.Diamond Junior Member

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    Location:
    Minneapolis, MN
    Vehicle:
    2009 Prius
    Model:
    Three
    Any updates I too am having the p0453
     
    #4 Mrs.Diamond, Apr 1, 2018
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