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Alarm goes off randomly

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by AndyRoo, Sep 22, 2017.

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  1. AndyRoo

    AndyRoo New Member

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    North Carolina
    Vehicle:
    2009 Prius
    Model:
    Three Touring
    I have a Prius Touring 2009. The car alarm started going off randomly. The only thing that stops it is to leave the key in the ignition. I put a new 12v battery in, but the alarm went off again this morning. Anyone have any thoughts or experience with this issue? Thanks!
     
  2. TMR-JWAP

    TMR-JWAP Senior Member

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    Location:
    Columbia, SC
    Vehicle:
    2007 Prius
    Model:
    Touring
    My son's 2005 did this a few times. It stopped after we replaced the FOB battery. We cleaned his FOB internals also, as the buttons were worn and some parts of the rubber pads were missing. We replaced the FOB shells a few weeks later, but we didn't have any more alarm problems following the battery replacement/cleaning.
     
  3. AndyRoo

    AndyRoo New Member

    Joined:
    Sep 22, 2017
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    Location:
    North Carolina
    Vehicle:
    2009 Prius
    Model:
    Three Touring
    Thanks I'll try that.