Ran out of gas, filled up, red triangle and engine light are showing

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by veganjay, Nov 26, 2017.

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  1. veganjay

    veganjay New Member

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    My 2007 Prius ran out of gas after going 430 miles on a tank (Yes, I know I should have filled up sooner).
    I put six gallons in the tank and thankfully it started. I promptly went to a gas station and filled it up completely.

    The car seems to be working fine, but I see the "Red Triangle" and "Check Engine" light:
    prius_error1.jpg

    Also, in the navigation display, I see a car with a red exclamation point:
    prius_error3.jpg

    Any suggestions? From what I have read it seems that I may need to check error codes and/or reset the computer.

    Thanks!
    Jason
     
    #1 veganjay, Nov 26, 2017
  2. bisco

    bisco cookie crumbler

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    welcome!
    disconnect the 12v neg for a few minutes to reset.
     
    #2 bisco, Nov 26, 2017
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  3. JC91006

    JC91006 Senior Member

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    Your hope is the error goes away after a reset. Car probably detecting misfire cylinders
     
    #3 JC91006, Nov 26, 2017
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  4. tuskin

    tuskin Member

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    Thanks for heads up will keep that in mind if it happens on my 2010
     
    #4 tuskin, Nov 26, 2017
  5. veganjay

    veganjay New Member

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    Thanks! That did the trick. In case anyone has the same issue and has not yet disconnected the battery,
    it is much easier to disconnect the wire that attaches the negative to the body frame (in the trunk, passenger side).
    prius_12v_neg_small.jpg

    After the reconnection, the triangle went away - however, the fuel gauge shows empty, when there is a full talk of gas.
    I believe it takes some driving or a gas fill up to trigger the fuel gauge re-calibration.

    Thanks again!
     
    #5 veganjay, Nov 27, 2017
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  6. wjtracy

    wjtracy Senior Member

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    Jay- The problem with a Gen2 is if you run out of gas, it let's you take the HV battery too low in charge,and that can be bad for an older HV battery. So we are hoping when you ran out of fuel, you did not completely drain the HV battery
     
    #6 wjtracy, Nov 27, 2017
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  7. veganjay

    veganjay New Member

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    As far as I can tell, the info on the navigation display shows that the battery is charged. Is there anything I can do to check the health of the HV battery?

    (BTW, the gas gauge reset itself after driving two miles.)
     
    #7 veganjay, Nov 27, 2017
  8. wjtracy

    wjtracy Senior Member

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    Not easily...sounds like you might be OK ..if the battery looks regular as far as charge on the MFD screen blue bars etc and does not jump around erratically, maybe you dodged a bullet
     
    #8 wjtracy, Nov 28, 2017
  9. edthefox5

    edthefox5 Senior Member

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    WJtracy is right me thinks. You have a bad hybrid battery. Start reading the hundreds of threads about a bad hybrid battery. There spread out all over priuschat.

    Buy a mini vci on amazon and you'll be able to check the battery yourself. Dont ask me what a mini vci is use the search forums button up top. You have alot of reading to do.
     
    #9 edthefox5, Nov 28, 2017
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