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Too much green?

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by depeters, Dec 3, 2011.

  1. depeters

    depeters New Member

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    Having driven my 09 prius for 3 years, I am very familiar with its habits. For the last 2 weeks, the hybrid battery energy monitor has been constantly 7-8 bars green. I have driven as much as 150 miles highway at a time and never left the green. During that time, mileage has dropped by 7-8 mpg. When going uphill, I only get a flicker of boost from the battery & elect. motor. Meanwhile the ICE is winding up trying to keep me up with traffic with very little electrical help. The battery keeps getting charged all the while.
    In town I occasionally get blue bars, but never less than 6.
    These symptoms have never occurred before. Longer trip coming up...Thoughts on this issue please.
     
    #1 depeters, Dec 3, 2011
  2. ursle

    ursle Gas miser

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    Is the 12v battery the one that came new with the car?
     
    #2 ursle, Dec 3, 2011
  3. bisco

    bisco cookie crumbler

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    sounds like a trip to the infamous dealer who will probably tell you nothing is wrong.
     
    #3 bisco, Dec 3, 2011
  4. The Electric Me

    The Electric Me Go Speed Go!

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    Que Kermit The Frog singing "It's not Easy being Green".

    Seriously. If it is your original 12v? That might be a good place to start. Otherwise? Go forth to thine dealership, with brazen heart and good ale at the ready.
     
    #4 The Electric Me, Dec 3, 2011
  5. seilerts

    seilerts Battery Curmudgeon

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    Try disconnecting the 12V negative for 5 minutes to do a hard reset of the HV and battery ECU. While disconnected, test the 12V. You should have more than 12.3V in the disconnected state.
     
    #5 seilerts, Dec 3, 2011
    1 person likes this.
  6. depeters

    depeters New Member

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    yes..it is the original battery
     
    #6 depeters, Dec 4, 2011
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