Key fob functionality issues

Discussion in 'Prius v Technical Discussion' started by RHG, Feb 4, 2023.

  1. RHG

    RHG Junior Member

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    Car not responding to key on 2013 Prius v. When I press on fob, it doesn't open/lock doors unless I continue to press button multiple times. (Sometimes it works with one press, other times it needs 10+ presses.) Once inside, the car often doesn't recognize key is there and puts up the warning light. It will only start when I hold key fob next to start button.) I have changed the battery multiple times, thinking that was it. I did just discover that when I press the key fob button, the red light doesn't always illuminate.

    So maybe it's something in the "wiring" inside the fob?
     
  2. Air_Boss

    Air_Boss Senior Member

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    Or a series of flat button batteries. Store stock is often very dated.
     
  3. rjparker

    rjparker Tu Humilde Sirviente

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    Battery upside down?
     
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  4. RHG

    RHG Junior Member

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    Brand new batteries...they work fine with other devices. I think we can rule that out as the reason.
     
  5. RHG

    RHG Junior Member

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    Nope. It does work intermittently well. And other times it just craps out. Thus, it can't be an upside down batter.
     
  6. Air_Boss

    Air_Boss Senior Member

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    Rinse the fob pc board and micro switches in denatured alcohol to try to remove salts and corrosion?
     
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