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2011 Prius Check Hybrid System Light

Discussion in 'Gen 3 Prius Main Forum' started by Dennis V Meneses, Jul 23, 2020.

  1. Dennis V Meneses

    Dennis V Meneses New Member

    Joined:
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    Vehicle:
    2011 Prius
    Model:
    Three
    Hello Guys,
    I'm new to the prius chat forum and I have a question. I have a 2011 Toyota Prius Model III with 151,600 miles. My check hybrid light, check engine light, master warning light, slip indicator light and brake system warning light all appear when I turn on the vehicle and while I'm driving. When I turn my vehicle off, the engine shakes and sounds like it's going to die and shuts down. Also, when driving, my mps dip down to like 30 mpgs and it doesn't pick up speed and when going up a hill, it struggles. Any thoughts or opinions what might be the problem?
     

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    #1 Dennis V Meneses, Jul 23, 2020
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  2. ttou68

    ttou68 Active Member

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    I would suggest to have trouble codes pulled first...
    You can do it yourself with an OBDII scanner, or an auto parts store maybe able to help you with it...
    You will be able to diagnose your issue probably after knowing trouble codes..



    Posted via the PriusChat mobile app.
     
    #2 ttou68, Jul 23, 2020
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  3. Dennis V Meneses

    Dennis V Meneses New Member

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    Three
    Oh okay, I'll take it to O'Reillys or another autoparts store and have them run some tests and diagnose the problem.
     
    #3 Dennis V Meneses, Jul 24, 2020
  4. bisco

    bisco cookie crumbler

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    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    couple potential issues: egr clogged, blown head gasket, low 12v, oil burning, dead inverter pump, weak hybrid battery cell.

    how long have you owned it? do you know the service history?
     
    #4 bisco, Jul 24, 2020
  5. Dennis V Meneses

    Dennis V Meneses New Member

    Joined:
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    Location:
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    Vehicle:
    2011 Prius
    Model:
    Three
    Im the 2nd owner and owned it since June 2015 with 41,000 miles. Since I've owned it, I've been doing the regular oil and filter change, tire rotation and balance, top of the fluids. I haven't done any major services since I bought the vehicle.
     
    #5 Dennis V Meneses, Jul 24, 2020
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  6. Grit

    Grit Senior Member

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    Model:
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    Dang, the gas savings goes out the window as you once said in many posts ago.
     
    #6 Grit, Jul 24, 2020
  7. bisco

    bisco cookie crumbler

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    Plug-in Base
    look at the 100k, 120k and 150k services in the maintenance booklet, or at toyota.com/owners
     
    #7 bisco, Jul 24, 2020
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  8. Dennis V Meneses

    Dennis V Meneses New Member

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    Three
    There's a number of maintenance that I haven't performed which I think I should do such as the Transaxle fluid drain & refill, brake flush, rear sliding pins lubed, spark slugs, engine & inverter coolant drain & refill and last time I went in for 140k, Toyota recommend I do those services
     
    #8 Dennis V Meneses, Jul 24, 2020
  9. Dennis V Meneses

    Dennis V Meneses New Member

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    Location:
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    Vehicle:
    2011 Prius
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    Three
    used the OBDII scan and it read code P0A94, looks like I get to replace the inverter. Does anyone know if there's a recall that this will cover?
     
    #9 Dennis V Meneses, Jul 26, 2020
  10. Ms.B

    Ms.B New Member

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    ----USA----
    Did you find the problem? I have the same EXACT problem with my 2012 Prius and cannot find the issue. New engine 30k miles ago and still having this issue.
     
    #10 Ms.B, Jul 2, 2024
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