Key fob not recognized after battery change

Discussion in 'Gen 3 Prius Main Forum' started by LWeaver, May 8, 2022.

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  1. LWeaver

    LWeaver New Member

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    I changed the battery on my 2005 prius base model.. red light comes on and it will lock the doors…. The car will not recognize the key even in the key slot. I tried the on,off twice and open door twice method but the car still says key is not present…. Am i missing something?
     
    #1 LWeaver, May 8, 2022
  2. bisco

    bisco cookie crumbler

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    did you lose the rfid chip?
     
    #2 bisco, May 9, 2022
  3. PriusCamper

    PriusCamper Senior Member

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    Which battery did you change? The one in your Key Fob? Maybe you installed a bad battery? Try a different one...
     
    #3 PriusCamper, May 9, 2022
  4. 3PriusMike

    3PriusMike Prius owner since 2000, Tesla M3 2018

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    Placing the key in the key slot is supposed to work even if the key fob battery is dead.
    I don't even think it is required to be in the slot, just right next to it.
    So you must have a bad fob or the wrong fob

    Mike
     
    #4 3PriusMike, May 9, 2022
  5. bisco

    bisco cookie crumbler

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    it does require the chip though
     
    #5 bisco, May 9, 2022
  6. LWeaver

    LWeaver New Member

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    The little rf chip fell out…. Thanks for the help!
     
    #6 LWeaver, May 12, 2022
  7. Johnny Cakes

    Johnny Cakes Senior Member

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    Key slot? I must be missing something.
     
    #7 Johnny Cakes, May 19, 2022
  8. 3PriusMike

    3PriusMike Prius owner since 2000, Tesla M3 2018

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    gen 2 prius (2004-2008) there is a slot where you can put the key fob near the start button

    Mike
     
    #8 3PriusMike, May 20, 2022
  9. Johnny Cakes

    Johnny Cakes Senior Member

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    Thanks Mike -- OP posted in the wrong forum.
     
    #9 Johnny Cakes, May 23, 2022
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