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One Key Fob with battery dying within 24h

Discussion in 'Model X: User Interface' started by Macgaver, Feb 21, 2017.

  1. Macgaver

    Macgaver Member

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    Montreal, Canada
    I tried 3 batteries on that key fob, they all survived less than 24h. Decided to just swap the batteries between my two key fobs and it's still the same remote killing the battery (making sure I am not having a bad batch of batteries).

    Anyone else had this issue ? have a fix ? (before I go to SC)

    Thanks
     
  2. brianman

    brianman Burrito Founder

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    How far from your car is the "misbehaving" keyfob kept overnight / when-you-sleep?
     
  3. aesculus

    aesculus Still Trying to Figure this All Out

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    Try just taking the battery out and immediately replacing it. I had a fob that got hung up and acted like the battery was dead. Had to replace the fob.
     
  4. Macgaver

    Macgaver Member

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    The fob at night is sitting outside the garage (like my other key fob).

    I did replace the battery 3 times. The key fob then work fine until the next morning.
     
  5. aesculus

    aesculus Still Trying to Figure this All Out

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    Did you try this like I asked?
     
  6. Macgaver

    Macgaver Member

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    I have tried to remove the dead battery and immediately replace it with a new one (3 times).

    Is it what you are proposing ? or just a remove+readd
     
  7. aesculus

    aesculus Still Trying to Figure this All Out

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    This. If it works then it's not a dead battery but a fob that gets confused. Happened to me and they tried twice to update the microcode and finally just replaced it.

    If it does not work unless you put in a new battery it could stil be defective but it could be your fob is just too close to the car. But your times are way too short for that to be an issue so I am betting on a defective fob.
     
  8. Aljohn

    Aljohn Member

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    Not only does the X key fob activate its blue tooth connections when near your X, but the fob will activate when near one another. I had the battery issue early-on and the Service Center replaced the batteries and recommended that the spare (for me) second fob be kept in a different place than my daily use For. Since, no premature battery failures.
     
  9. Socalcommuter

    Socalcommuter Member

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    Mine did this the other day too. I had a parellel thread. Mine kills the battery in less than 30 mins and even took to the SC but they thought it was a faulty battery. One key fob seems fine but the other is the battery burner. I am out of town but plan on taking them back to the SC. Let me know what they say if you do go. Also, I don't keep the two fobs together. They are in other parts of the house.
     
  10. Macgaver

    Macgaver Member

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    Tested 3 new batteries, all dead next morning. Finally tested with the battery from my other key fob, it killed it's battery also in the coming hours.
     
  11. Zarwin

    Zarwin Member

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    One of my fobs does this (dies in about 48 hours with a new battery) and the other is fine. I'm pretty sure I know why though. The fob that dies fast was also the fob that took a swim in the Atlantic ocean, oops. Heavily corroded inside but amazingly still works, for a short time anyway...
     
  12. qadaemon

    qadaemon Member

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    Sidney IL, Cape Canaveral FL
    I had this problem when we first purchased the car. The SC updated the firmware on both keys which fixed the battery problem.
     

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