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Key FOB not detecting

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by apt5020, Aug 7, 2017.

  1. apt5020

    apt5020 Senior Member

    Joined:
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    Location:
    Prius City, CA
    Vehicle:
    Other Hybrid
    Model:
    Five
    Had issued this weekend. Friday was fine driving home. Was playing with the settings on the Android 4.1.1 head unit but don't think it saved any setting. Now my keyfob doesn't detect. I can't press the start button. Totally weird. I can use the remote to unclock and lock doors without any issue. Scan Guage 2 see 14.3V when engine start. The car is a 2014 Prius Plugin Base. Last night I replaced the CR1632 battery but still doesn't detect. To start the car I have to put the FOB right next to the start button. There is no other prius keys inside the car or close to my cell phone. What setting should I look in Techstream? Any ideas?
     
    #1 apt5020, Aug 7, 2017
    Last edited: Aug 7, 2017
  2. bisco

    bisco cookie crumbler

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    Plug-in Base
    try disconnecting the 12v negative for a few minutes, maybe you freaked out the computers.
    and please update your info when you get a moment.
     
    #2 bisco, Aug 7, 2017
  3. apt5020

    apt5020 Senior Member

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    Give it a try later tonight when I get home.
     
    #3 apt5020, Aug 7, 2017
  4. WilDavis

    WilDavis Senior Member

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    Location:
    Top RH Corner of RH Coast on L side of The Pond
    Vehicle:
    2009 Prius
    Model:
    II
    Might be weak batteries in the FOBs, or a failing 12V AuxBattery. One of the symptoms of failing AuxBat is flakey SmartKey, I found that when the 12V battery failed on my 2009 Gen II (about 18 months ago) I noticed that occasionally the SKS wouldn't work. Good Luck!
     
    #4 WilDavis, Aug 7, 2017
  5. apt5020

    apt5020 Senior Member

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    Other Hybrid
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    Five
    Fixed. On the Android 4.1.1 under setting I disable SKS. I re-enable and it is working
     
    #5 apt5020, Aug 7, 2017
    Tbkilb01 likes this.
  6. bisco

    bisco cookie crumbler

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    2012 Prius Plug-in
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    Plug-in Base
    :p
     
    #6 bisco, Aug 7, 2017
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