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2007 SKS Unlocks/Locks Erratically

Discussion in 'Gen 2 Prius Main Forum' started by CaseyH, May 27, 2019.

  1. CaseyH

    CaseyH New Member

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    Hello and thanks for any future help! My fiancé has a 2007 Prius with the sks functionality. After a traction battery failure and replacement at around 200,000 miles the car began to unlock/lock remotely itself as if you were using the sks but regardless of how close you are not. We will be sitting at dinner with the car parked down our driveway and still hear it go off. It is driving us insane! Lol. I have replaced the batteries in the fob, which didn’t affect it at all. Also, we have turned the SKS system off entirely and it still continues. Sorry if this is a newbie topic or easy fix but any help is much appreciated!
     
    #1 CaseyH, May 27, 2019
  2. bisco

    bisco cookie crumbler

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    welcome!

    may not be the issue, but start with the 12 volt battery health
     
    #2 bisco, May 28, 2019
  3. JC91006

    JC91006 Senior Member

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    Sounds like you have a sticky button on your keyfob. It has nothing to do with SKS
     
    #3 JC91006, May 28, 2019
  4. bisco

    bisco cookie crumbler

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    would that be the case if it is out of range with sks shut off?
     
    #4 bisco, May 28, 2019
  5. JC91006

    JC91006 Senior Member

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    The sks shut off is the key information provided. So it's not sks related. It's just the button on the keyfob being pressed
     
    #5 JC91006, May 28, 2019
  6. bisco

    bisco cookie crumbler

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    ah!
     
    #6 bisco, May 28, 2019
  7. CaseyH

    CaseyH New Member

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    Got the replacement fob “case” off of amazon and switched the guts over to the new one. Works great! Thanks everyone for the help!
     
    #7 CaseyH, May 31, 2019
    WilDavis and Skibob like this.
  8. JC91006

    JC91006 Senior Member

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    Make sure you switch over the RFID chip, most people miss this when they switch things over. It's the chip needed to start the car in the key slot
     
    #8 JC91006, May 31, 2019
    Skibob and WilDavis like this.
  9. Vicki1959

    Vicki1959 New Member

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    I'm new so cannot start a new thread. My 2009 gen 2 Prius frequently locks spontaneously, even when the key FOB is in the car. Very annoying when I set my purse on the seat then go to open the rear hatch and the car locks with my cell phone and key inside! New key FOB batter and the 12V battery replaced last year. Any ideas?
     
    #9 Vicki1959, Aug 18, 2023
  10. dolj

    dolj Senior Member

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    Have you checked the voltage on the fob battery? If it is 2.9 V or less replace the battery It takes a CR2032 lithium cell. Check the voltage on the new battery, don't assume that because it is new it is good. A new battery should be 3.3 - 3.4 V if it is good.

    That's the only thing I can think of at the moment.
     
    #10 dolj, Aug 19, 2023
  11. Vicki1959

    Vicki1959 New Member

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    It happens with both keyFOBs, and we have checked voltage. It's a weird problem, I admit. I'm wondering if the car has a sensor that is going bad. But I don't know anything about sensors in the Prius or any car.
     
    #11 Vicki1959, Aug 24, 2023
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