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Key Fob Battery

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Sid, Mar 6, 2010.

  1. Sid

    Sid New Member

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    I tried searching for this topic, but either couldn't find the right search box or use the right phrase, so here's my question:

    What battery goes in the key fob?
    Can I replace it myself?

    This is for a 2005 Prius.
    The symptom is the fob is not being recognized unless held close to the dashboard. Used to work fine in my pocket and in my wife's purse.

    Thanks (in advance)! :)
     
  2. firepa63

    firepa63 Former Prius Owner

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    The battery is a CR-2032 available at Radio Shack and you can replace it yourself. Instructions should be in your Owner's Manual.
     
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  3. Sid

    Sid New Member

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    Thanks!
     
  4. john1701a

    john1701a Prius Guru

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    Details about FOB battery replacement, including photos, are available in the User-Guide.
    .
     
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  5. Sid

    Sid New Member

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    Following those directions I just can't separate the emblem cover:
    "After removing the key, continue to hold the latch and firmly push with your thumb behind the emblem to slide it off."

    -Nevermind, I was pushing the wrong way.
     
  6. Sid

    Sid New Member

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    All done now. New battery is in each fob.
    Thanks again all who helped! :)
     
  7. StBrianofMinneapolis

    StBrianofMinneapolis Junior Member

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    how long had you been using the fob in question. I noticed after two years of constant use, my main fob seemed to be generating a weak response from the entry system. Nayurally, I am interested in replacing the battery.
     
  8. Sid

    Sid New Member

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    Both of the fobs have been in use since purchasing the car in July of 2005, so almost 5 years before replacing was necessary, not too bad.
     
  9. andyprius

    andyprius Senior Member

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    Unusually good, I would say normal Fob Bat life is 2-3 years.
     
  10. prius1701

    prius1701 New Member

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    I accidentally ran a fob through the laundry, washed and dryed, and it still works. Sturdy little things.
     
  11. andyprius

    andyprius Senior Member

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    That's funny! Many small electronic devices are at least water resistant, if not water proof. Unless the circuitry actually shorts out thru water immersion, these things will survive. It is actually possible to wash an old filthy electronic box from the last fifty years IF: soap and water are used sparingly and the box (whatever) is dried out in Sun. Resistors,capacitors and inductors are usually safe, and the metallic base of course. In modern electronics the components are even safer from H2O. Don't throw it in the wash machine tho. The other day my significant spouse decided to throw our Double Canasta deck in the wash machine! no comment..................