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Reset economy data

Discussion in 'Gen 3 Prius Main Forum' started by Sumedha, Jun 23, 2016.

  1. Sumedha

    Sumedha Junior Member

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    Location:
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    Vehicle:
    2012 Prius
    Model:
    Three
    Does anyone know how to reset the ECU in a 2012 Prius by doing something else other than removing the 12v battery ?

    I did some changes which should improve fuel economy and if it uses older drive data, it could screw the predictions. I have heard that this needs a resetting time to time.
     
    #1 Sumedha, Jun 23, 2016
  2. mrbigh

    mrbigh Prius Absolutum Dominium

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    No short cuts that we know
     
    #2 mrbigh, Jun 23, 2016
  3. DonDNH

    DonDNH Senior Member

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    Four Touring
    You might be able to just remove the main 120amp fuse; but it is probably just as easy to remove the battery cable from the terminal.
     
    #3 DonDNH, Jun 23, 2016
  4. FuelMiser

    FuelMiser Senior Member

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    All you need to do is remove the Negative battery terminal for a few seconds and reconnect.
     
    #4 FuelMiser, Jun 23, 2016
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