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How does the alarm function? Weird Story!

Discussion in 'Model S' started by swesson, Sep 15, 2016.

  1. swesson

    swesson Member

    Joined:
    Aug 17, 2015
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    Location:
    Denver, Colorado
    You will see by my profile that I am a Model X owner, but I am posting in the S forum since my question is about something that happened to a friend who owns a Model S. He recently parked his car in a small regional airport parking lot. Upon his return landing, he enabled the AC and proceeded to the spot where he parked his car. Much to his surprise, the car was not there. Then he noticed that the airport had resurfaced the lot where his was parked. He opened up his Tesla app and the locator was showing that the car was still where he parked it. He then used the app to honk the horn in order to locate the car. Thankfully, he was able to find the car. Obviously, the airport had towed his car, but I was surprised that the process of towing the car didn't trip his alarm, nor did it notify him via the app that the alarm had been tripped. It was also odd that the app locator showed the previous location of the car, not the present one. At first, I thought maybe he had the energy saver turned on and the keep alive beacon wasn't active, but he told me when he finally located the car, the AC was running!

    Has anyone seen anything like this before? Has anyone tripped their alarm and seen what happens? This all seemed very strange to me.
     
  2. mblakele

    mblakele radial cross member

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    Location:
    SF Bay Area
    I don't know how the alarm works, but GPS only seems to update when the car is in drive and moving forward. When I back into a space, the app generally shows my car still sitting wherever I last put it into reverse instead of wherever I parked. Others have reported similar behavior.
     
  3. RYCO

    RYCO Member

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    Location:
    Gilbert AZ
    So, if you plan on stealing a Tesla, drive backwards........ lol.
     
  4. scottm

    scottm Active Member

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    I know the alarm goes off if you open a door from the inside after the car has locked by the fob or walk-away
     
  5. siucity

    siucity Button Pusher

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  6. Half Dollar Bill

    Half Dollar Bill Traveller, teacher, poet, accountant

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    I was with my brother in his car, with my MS parked at his house, when I got a notice on the Tesla app that the alarm was set off. I reset it and got a call immediately afterwards from my wife that his kids wanted to see the inside of the car and opened the door, setting off the alarm. I believe the windows were open and they reached through since the handles were retracted.
    I've also had the car parked and walked away, with my wife still inside, and she's set off the alarm when she opened the door.
    But in both of those instances, the alarm was tripped and the app notified, because the doors were opened.

    No experience on what happens in unauthorized towing situations.
     
  7. green1

    green1 Active Member

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    Calgary, Alberta, Canada
    The North American version of the Tesla does not have a tilt or motion sensor. So if the doors don't open, the alarm doesn't go off.

    The European version however does have those features. Why not in North America? Only Tesla knows...
     
  8. MorrisonHiker

    MorrisonHiker Beta Tester

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    Location:
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    When we were at the Denver Service Center in June, someone had parked their car in front of one of the garage bays but had forgotten to leave their key fob. The techs used those to move the car out of the way and said they have to do that from time to time.
     
  9. green1

    green1 Active Member

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    I'm somewhat surprised that a service centre can't just activate the app remotely to unlock and enable keyless driving...
     
  10. CHG-ON

    CHG-ON Still in love after all these miles

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    Well, that's a pretty crappy alarm system, IMO!
     
  11. gaswalla

    gaswalla P4201/85/airsusp/pano/19i

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    The alarm system seems worthless honestly. Huge opportunity for improvement - especially with a care outfitted with sensors, a secret dash cam, and always on Internet connection
     

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