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My Prius fuel gauge is off, and it's freaking me out!

Discussion in 'Gen 2 Prius Technical Discussion' started by khm, Sep 4, 2015.

  1. khm

    khm New Member

    Joined:
    Sep 4, 2015
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    Location:
    Washington, D.C.
    Vehicle:
    2004 Prius
    Model:
    II
    My fuel gauge has been acting strangely lately, and it's weirding me out! I started this week with a full tank of gas, and after about 70 miles of driving on the odometer, the fuel gauge dropped to just under half a tank of gas. (I usually get 230-300 miles per tank, so this can't possibly be right.)

    The same thing happened just the other week. I had only driven about 100 miles when the fuel gauge went from mostly full to barley full. I freaked out and went to the gas station. Only, my car would only accept 2 gallons of gas.

    My question is: can I reset this so that it works properly? If it can be fixed, is there a simple way I can fix it, or do I have to take it to the dealer?

    If anyone else has this problem, is it even worth fussing over, or can I just leave it as is and fuel my car when my odometer says I've gone a certain number of miles. For example, right now I know I have at least another 200 miles left for this tank of gas, but I don't want the fuel gauge to drop too low and freak me out while I'm driving...
     
  2. CooCooCaChoo

    CooCooCaChoo Active Member

    Joined:
    Jan 7, 2015
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    Location:
    Cow-lee-fornia
    Vehicle:
    2023 Prius
    Model:
    LE
  3. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    107,571
    48,861
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    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    when i had a blatter, i just multiplied my average mpg by 8, and filled up around there.
     
  4. AzWxGuy

    AzWxGuy Weather Guy

    Joined:
    May 22, 2011
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    Location:
    Tucson, AZ
    Vehicle:
    2021 Prius
    Model:
    Limited
    In addition to the above ^, anytime the electrical gremlins begin to appear is a good time to check the status of your auxiliary 12V battery.