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Model S and X unlock using phone

Discussion in 'Model S' started by Electric Machete, Sep 23, 2017.

  1. Electric Machete

    Jul 5, 2012
    Weston, FL
    The Model 3 is shipping with no fob. They are providing an RFID card instead. Most people will just use their phone, which when paired with the app, unlocks the vehicle as you approach. Does anyone know if this will be possible with existing S and X models? I obviously can unlock the car using the app, but it requires opening the app and pressing the unlock button. It seems the Model 3 will do this passively. I read that it involves Bluetooth communication. I wouldn’t mind having one less item to carry with me. My main concern about leaving the fob behind currently is any issues with connectivity. It currently involves the cellular connection to the car rather than local Bluetooth.
  2. mblakele

    mblakele pre-jackpot member

    Mar 7, 2016
    SF Bay Area
    Not possible today, but a future update might enable it.

    I'd be cautious about relying that feature though. With the TM3 you'll be able to carry the card in your wallet, as a backup. What happens if you leave the fob at home, and the app doesn't work in a dead spot? That's been known to strand people, because the current software always goes through Tesla servers. The communication path is phone -> server -> car, not phone-to-car.

    So far I'm not clear on how the TM3 app will work. I suspect it's also phone -> server -> car, not phone-to-car. There may be good security-related reasons to do it that way.
  3. drklain

    drklain Member

    Dec 17, 2016
    Scottsdale, AZ/Fairfax, VA/Brussels, BE
    It's not. The M3 phone unlock has the owner register th phone with the car while using the RFID card. Then the car looks for an "approved" phone in range via Bluetooth. If it sees it, it unlocks the car and then allows you to start it. As you walk away and it loses comms with th phone via Bluetooth, it locks th car. Detailed write up on elektrek
  4. tpham07

    tpham07 Active Member

    Mar 21, 2017
    Rhode Island
    Nope its phone-car. Sever->car depends on a strong enough LTE signal which is not always feasible. Could you imagine a car that could not be driven because there was no internet service?

    Model S is surely capable of this. The bluetooth receiver has quite the bit of range, im sure in a future update we might get the option.
  5. swengl

    swengl Member

    Dec 19, 2014
    Lynchburg, VA
    I tweeted Elon to ask, I'll let you know if he responds ;)
  6. TampaRich

    TampaRich Member

    Jul 7, 2013
    Tampa, FL
    Would love to ditch the fob.

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