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Frightening experience with AutoPilot on the freeway...

Discussion in 'Model S' started by HX_Guy, Oct 1, 2017.

  1. HX_Guy

    HX_Guy Member

    Sep 1, 2012
    Phoenix, AZ
    I was driving on the freeway at night, with AutoPilot set to 75MPH when all of a sudden an alert came up on the main screen (not the instrument cluster) which said "Take control immediately" and a picture showing hands on the steering wheel.

    I took control, but the instrument cluster still showed AutoPilot as being active which was confusing because I didn't know if I was in control or if the car wife is freaking out next to me...then the instrument cluster starts to fade out to a completely white screen and turns off. I'm not driving on the freeway with no instrument cluster showing speed of anything else. I start to move over to catch an exit when everything came back online about several seconds.

    The rest of the drive was fine and everything seemed to work normal again, but it was an uneasy drive monitoring the car to make sure it didn't act up again.

    Anyone else every experience this?
    • Informative x 4
  2. Tam

    Tam Active Member

    Nov 25, 2012
    Visalia, CA
    Sounded like a software problem and the system rebooted itself to correct it.

    At least, your propulsion, braking and steering are still good while the system resetting itself.

    Your car is a computer on wheel so I don't doubt there will be instances like this.
    • Like x 3
    • Helpful x 1
  3. MarcusMaximus

    MarcusMaximus Member

    Jan 2, 2017
    San Jose
    Haven’t seen this, but I’ve had several times where the loud rapid beeps for early collision detection went off with nothing around and, oddly, no warnings or anything on either screen. Each time was scary, but went away after a couple seconds.
  4. Blissedout

    Blissedout Member

    Sep 25, 2016
    Weston CT
    When weird stuff happens, I suggest you email National Service and tell them the time. They will get it to the proper people who are working on it and who will check your logs to see what happened.
  5. cybergates

    cybergates Member

    Feb 14, 2017
    So Cal
    First of all remember to tap the brake slightly always disengages the system. The take control immediately I have seen in rare circumstances.

    The screen and dash going dark at the same time - I would definitely have the car checked out and have them evaluate the logs. I have time to time seen the main large screen crash and reboot (maybe 3 x in the past 6 months spontaneously) but never the dashboard.
  6. TexLaw

    TexLaw Member

    Jan 29, 2017
    Bellaire, TX
    Keep in mind that you ALWAYS are in control. Acceleration, braking, and steering always are at your command, even while autosteer is active. As mentioned above, braking deactivates all EAP, and a bit of steering deactivates autosteer.
    • Like x 2
  7. JHWJR

    JHWJR Member

    Jan 31, 2017
    Pittsburgh PA
    I have had this perhaps 10 times now. I attribute it to the car saying -- "Right now, at this moment, I have lost confidence that I know what to do. I will keep trying, but for a moment, I'm counting on you, the driver. OK. I have this again." -- whether it is computational error, bad or confusing road information, a software reboot (goes away too fast for this I think) or something else. But I never got those a few months ago, and I get them often enough now. On the other hand, I drive over 1,000 miles a week, so how often you see it may just be a function of how many miles are driven.
    • Like x 1
  8. Qbenjamin

    Qbenjamin Frugal But Classy!

    Jan 7, 2017
    This has happened to me several times while using AP and not using it. The entire screen goes blank and it just reboots. I don't lose control of the vehicle of anything like that, but it's still annoying when this happens.
  9. tls

    tls Member

    May 17, 2015
    New York, New York
    I've had the "red hands" on my main screen -- while the instrument cluster showed AP was still on and, in fact, it was. Was preceded by weird nav issues, media player problems, and other strangeness. Finally turned out to be a symptom of the SD card having gone bad. They replaced the whole unit, fixing all the issues at once.

    Seemed to have nothing to do with the AP conditions that legitimately cause red hands on the IC.

    I assume other causes involving filesystem corruption or, really anything that feeds enough bad data to the Linux kernel are possible, including software bugs, transient hardware failures, etc. Garbage in, garbage out!
    • Informative x 1

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