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Smart Key Stopped Working After Replacing 12 Volt Battery

Discussion in 'Gen 2 Prius Main Forum' started by NYPrius1, Aug 8, 2012.

  1. NYPrius1

    NYPrius1 Active Member

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    A purchased a new 12 volt battery at the dealer. I was getting weird warning lights, so I had them run diagnostics. They said all the codes were voltage and I needed a new battery.
    Shortly after this I noticed the Smart Key no longer opened and closed the doors.
    The car starts ok.
    My question is this, could the changing of the battery have caused this?
    I tried searching for the answer BUT all answers refereed to adding a new smart key purchased on Ebay.
     
    #1 NYPrius1, Aug 8, 2012
  2. Avi's Advanced Automotive

    Avi's Advanced Automotive Independent hybrid repair shop

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    The most likely cause you be that they pressed the "key" button below the steering column. You may want to press the "key" button once then start the car, turn the car off, remove the key from the slot and see if it works.
     
    #2 Avi's Advanced Automotive, Aug 8, 2012
  3. NYPrius1

    NYPrius1 Active Member

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    Thanks So Much for the reply.
    I tried that, no luck. When I pressed the button It did stop the car from starting with out the SKS inserted.
    I pressed the button again and it starts without the SKS inserted
    It's just that nothing happens when I hit lock or unlock.
    I was thinking new battery for SKS, But this started with the change of the 12 volt battery.
     
    #3 NYPrius1, Aug 8, 2012
  4. Avi's Advanced Automotive

    Avi's Advanced Automotive Independent hybrid repair shop

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    Does this happen with both keys?
     
    #4 Avi's Advanced Automotive, Aug 8, 2012
  5. NYPrius1

    NYPrius1 Active Member

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    Yes, Neither one will open or close doors.
     
    #5 NYPrius1, Aug 8, 2012
  6. Avi's Advanced Automotive

    Avi's Advanced Automotive Independent hybrid repair shop

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    Sound like time to head back to to dealer for them to fix it.
     
    #6 Avi's Advanced Automotive, Aug 8, 2012
  7. NYPrius1

    NYPrius1 Active Member

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    I just noticed that the small red light doesn't blink when I press the keys.
    On our 2010 the light blinks when you press the lock or unlock buttons.
     
    #7 NYPrius1, Aug 8, 2012
  8. cwerdna

    cwerdna Senior Member

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    Then, it's likely the battery inside the fob is dead.
     
    #8 cwerdna, Aug 8, 2012
  9. NYPrius1

    NYPrius1 Active Member

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    Thanks for the reply. I will try that.
     
    #9 NYPrius1, Aug 8, 2012
  10. NYPrius1

    NYPrius1 Active Member

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    Just got back from Toyota, They put in new battery in the SKS. Everything working Just Fine! Charge $4.00 Including Sales Tax or 8 3/4 %.
    Thanks for the help guys
     
    #10 NYPrius1, Aug 9, 2012
  11. cwerdna

    cwerdna Senior Member

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    ^^^
    Those batteries (CR2032) can be had for ~$1.79 at Fry's Electronics around here.

    There's one place online that sells that for MUCH cheaper than that, but one has to order a bunch to make it worthwhile, due to shipping costs.
     
    #11 cwerdna, Aug 9, 2012
  12. NYPrius1

    NYPrius1 Active Member

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    I am sure when you add the S&H it will come to 4.00.
    Also, the labor charge What's the rate at the dealer for 5 minutes labor. LOL
     
    #12 NYPrius1, Aug 9, 2012
  13. cwerdna

    cwerdna Senior Member

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    The CR2032 battery in the fob is pretty easy to change.
     
    #13 cwerdna, Aug 9, 2012
  14. Salvage09

    Salvage09 Junior Member

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    FWIW, 'Dollar stores' often sell LED votive candles @2-3/$1 and they're powered by....2032 or similar batteries.
     
    #14 Salvage09, Sep 3, 2012
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