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Multiple Warning Icons And Lights

Discussion in 'Gen 2 Prius Technical Discussion' started by Poosey, Sep 9, 2011.

  1. Poosey

    Poosey Junior Member

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    2009 Prius w/ 29,750 mi [Maint Req Light came on at ~28,000 mi]
    SW Florida

    I am getting a Master Warning Light (triangle), a Hybrid System Warning icon, a VSC light, a (red) Brake Warning icon and a Check Engine icon. When the car starts, the A/C is fine but quickly loses cooling output especially with full throttle. regardless of manual or auto setting. Throttle feels a bit spongy and slightly unresponsive.

    4 blue bars on charge and everything else appears OK. :D

    Outside of the need for a visit to Toyota :rant:, any suggestions or comments?

    TIA
     
    #1 Poosey, Sep 9, 2011
  2. Hal W

    Hal W New Member

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    First thing you want to check is the 12v battery. Insure that it is putting out 12v to 12.6 volts. If lower, then that is probably the problem! Your 12 volt will need to be charged or replaced. Hal
     
    #2 Hal W, Sep 9, 2011
  3. Patrick Wong

    Patrick Wong DIY Enthusiast

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    When the Prius is READY, look at the inverter coolant reservoir. Do you see fluid turbulence which shows the inverter coolant pump is running?

    If no, then a failed inverter coolant pump is your car's problem.
     
    #3 Patrick Wong, Sep 9, 2011
  4. Poosey

    Poosey Junior Member

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    Will do and thanks for the advice! :)
     
    #4 Poosey, Sep 9, 2011
  5. Poosey

    Poosey Junior Member

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    Going to look now, appreciate your response. :)
     
    #5 Poosey, Sep 9, 2011
  6. Poosey

    Poosey Junior Member

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    IC pump running ok. :)
     
    #6 Poosey, Sep 9, 2011
  7. Poosey

    Poosey Junior Member

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    Looks good at slightly over 12v. :rockon:
     
    #7 Poosey, Sep 9, 2011
  8. Patrick Wong

    Patrick Wong DIY Enthusiast

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    I think it is time for you to schedule a dealer visit; whatever problem the car has should be covered under warranty.
     
    #8 Patrick Wong, Sep 9, 2011
  9. Poosey

    Poosey Junior Member

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    Hal, going to have to back off on my prior response that all is well. My volt meter may be on the fritz. :rolleyes:
     
    #9 Poosey, Sep 9, 2011
  10. Poosey

    Poosey Junior Member

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    Yeah, Patrick, I've come to the same conclusion. :( Oh, well, it's a great car with this one problem to date. :)
     
    #10 Poosey, Sep 9, 2011
  11. Hal W

    Hal W New Member

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    Poosey , it is best to let the car sit over night ,then check before starting. There is a way you can check your voltage on the display panel. Do a search, Hal
     
    #11 Hal W, Sep 9, 2011
  12. Poosey

    Poosey Junior Member

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    #12 Poosey, Sep 10, 2011
  13. Poosey

    Poosey Junior Member

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    Returned from dealer...inverter coolant pump needed replacing...:mad:...learned a lesson. When looking at the flow at the reservoir, make sure you see real bubbles and not car vibrating the fluid. :embarassed:

    I had looked at this video

    TeacherTube Videos - Prius inverter turbulence

    and took from that a wrong impression. Warranty covered the fix.

    Thanks again to everyone! :rockon:
     
    #13 Poosey, Sep 10, 2011
    1 person likes this.
  14. Hal W

    Hal W New Member

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    Yes you have to look for coolant flow[Movement] Good exercise anyway! You learned something. I was going to mention this issue [pump] next after you checked the 12V.Take care, Hal
     
    #14 Hal W, Sep 10, 2011
  15. 2009Prius

    2009Prius A Wimpy DIYer

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    Another reason to check the inverter coolant pump in IG-ON mode (not READY) so that the engine would not be running and car would be nice and quiet and easy to hear the pump running and see the fluid moving in the reservoir. :)
     
    #15 2009Prius, Sep 11, 2011
  16. eterry2

    eterry2 New Member

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    looks like my similar symptoms is the inverter pump. is it ok to drive it?
     
    #16 eterry2, Sep 17, 2011
  17. qbee42

    qbee42 My other car is a boat

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    It's a cooling issue, so it all depends on how it is driven and temperature. A short trip to the dealer on a cool day is fine. Going through the mountains is not.

    Tom
     
    #17 qbee42, Sep 18, 2011
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