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Model S shifting to park while driving?

Discussion in 'Model S' started by pkz0125, Sep 29, 2015.

  1. pkz0125

    pkz0125 Member

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    I was looking at the quick reference manual and saw this:
    Note that Model S senses your weight in the driver’s seat. If you lift off the seat, it may shift into

    P (Park)

    I take this to mean this is true even while driving hence the words "If you lift off the seat..." Has anybody experienced this? If this happens while driving, it could be dangerous. A person is likely to lift off little or all the way when taking out wallet or phone from the front pocket of the pants, grabbing something from the back seat, get a real good view when backing out (until one has learned to use the camera) and so on. Yeah these are all bad practices and should be avoided but old habits die hard.

    Let's not get distracted on the old habits and what should not be done. Let's focus on how the car actually behaves. Has anybody experienced MS shifting into park when they "lifted off" their seat while driving?
     
  2. cgiGuy

    cgiGuy Member

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    #2 cgiGuy, Sep 29, 2015
    Last edited: Sep 29, 2015
    My understanding is that it only happens at very slow speeds. Not sure anyone has actually nailed down the speed though. Sounds like a fun weekend project.
     
  3. MyJoule

    MyJoule Member

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    I have had it happen while backing up and looking over my shoulder. Apparently I lifted slightly off the seat. Can't speak for what happens at speed going forward. The first time it happened I was backing into a charging spot, and couldn't figure out what happened right away. It's not a big deal though, I just use the rear view camera now and don't turn around over my shoulder.
     
  4. dsm363

    dsm363 Roadster + Sig Model S

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    I believe the speed is 3 or 5mph you have to be traveling less than for this to happen. Otherwise it just gives you an warning alarm and you can keep driving. They wouldn't stop you at highway speeds of course if you did this.
     
  5. MsElectric

    MsElectric Active Member

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    Does the vehicle go to park even if you are wearing your seat belt?
     
  6. RAW84

    RAW84 Member

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    Yea, it used to happen to me all the time as I backed down my narrow driveway and kept lifting my butt off the seat. Very annoying.

    After a few months with the car I've learned to stay seated and rely on the camera and mirrors.
     
  7. mknox

    mknox Well-Known Member

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    I had it happen going through a car wash. I decided I needed my cell phone from my pocket, so I unbuckled and lifted my butt to get at my pants pocket and the car went into Park! As soon as it happened I knew what I'd done. The car kinda hopped over the car wash roller, but I got it in to Neutral before the next roller came along.
     
  8. patn

    patn Member

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    Same as others, I experience it frequently at low speed in reverse while backing out of my garage and messing with the seat... and although I like the concept I find it kind of annoying because it seems touchy and abrupt...

    I was wondering if the newer cars with the real computer controlled braking do a smoother job of stopping instead of just applying the emergency brake screws?
     
  9. FlasherZ

    FlasherZ Sig Model S + Sig Model X + Model 3 Resv

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    It happens at speeds below 5 mph, if you're not wearing your seat belt. Putting your seat belt on will prevent this from happening.

    It still uses the parking brake.
     
  10. pkz0125

    pkz0125 Member

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    Glad to know it only happens at low speeds. I use a big phone (Lumia 1520) and sometimes lift my butt off to take it out, although I have gotten better at keeping it out in the car lately. Camera is great but it doesn't give corner view or side view. I am afraid I won't see kids running around in the parking lot when backing out so I often lift off especially at kids friendly places.
     
  11. pgiralt

    pgiralt Active Member

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    This only happens if you drive without your seatbelt.
     
  12. Discoducky

    Discoducky Active Member

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    It is the seat sensor that is in play here, but only shifts into park at very low speeds like others have said. At higher speeds an alert is shown as is also the case if a front passenger is unbelted.

    The thread title should be changed IMO to include "...at low speeds (by design)" as this is not a bug and people might think this is an issue with the car.
     
  13. pgiralt

    pgiralt Active Member

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    Yes, it is the seat sensor, however if you have your seatbelt on, you can still lift yourself off the seat and it won't go into park because it knows the seatbelt is on. The only combination that makes this happen is low speed + seat off chair + seatbelt off. Title should be "Call goes into park at low speed when lifting off seat with seatbelt off "
     
  14. fieldalias

    fieldalias Member

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    I'm actually glad to see it does this. I was driving with creep off for some time, and was wondering what would happen if I got out without putting it in park.
    Title of the thread is very misleading.
     
  15. Vgsllc1

    Vgsllc1 Member

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    you are not supposed to run MODEL S through automatic car wash,... smh

     
  16. mknox

    mknox Well-Known Member

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    Well, the heck with that. When it's way below freezing and the car has so much road salt brine on it that I can't see out the windows, it's going through a car wash.
     
  17. Brass Guy

    Brass Guy Member

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    ... + foot off accelerator.

    I tried this in the driveway and had trouble getting it to happen on purpose. It was because I was holding the accelerator slightly to creep along. About 1/2 second after releasing the pedal it shifted to Park. Works forward and reverse, and yes, only without the seat belt latched.
     
  18. David29

    David29 Member

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    #18 David29, Sep 30, 2015
    Last edited: Oct 1, 2015
    quote_icon.png Originally Posted by Vgsllc1 viewpost-right.png
    @mknox, I am with you! I fully expect I will need to run mine though a car wash, too. I plan to use a brushless wash (spray only), but sometimes you just have to do what you have to do!

    I do, however, plan to get OptiCoat Pro treatment next week, to help protect the paint. I understand it helps make it easier to keep the car clean, too.
     
  19. whitex

    whitex Member

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    I *think* it happens only when seatbelt is not on. I had it happen when backing up a couple of times. But, to the credit of this feature, I once parked (or so I thought) but it turns out I must not have pressed the park button hard enough because the car stayed in "drive", so when I got out of the car, the car started rolling (creep on) but then stopped quickly. And yes, the car was dinging at me, but I got conditioned to ignore the alarm when exiting the car since it dings all the time whenever I turn the lights on manually (when it's almost but not quite dark outside) and I go to exist the car, even though the lights do just go off and there is no problem. Originally it used to ding and show a text alarm description, but after I filed a bug with Tesla, they fixed the message (text no longer appears) but whoever fixed the software must not have had speakers connected to their development unit so they didn't realize the audible alarm still sounds. This is an old issue, quietly hoping will go away with 7.x, but if not, will file a new bug.
     

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