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Warning!! 2021.4.6 - autosteer disengages without input!!

Discussion in 'Australia' started by Nuclear Fusion, Feb 17, 2021.

  1. Nuclear Fusion

    Nuclear Fusion Active Member

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    #41 Nuclear Fusion, Feb 24, 2021
    Last edited: Feb 24, 2021
    Thanks for confirming & thereby warning others. It would be exceedingly dangerous if the disengagement occurred on your curve at the exact same time as oncoming traffic
    Which model do you have?
    My fault occurs on X, but not 3. Both have FSD computers
     
  2. DOMn8

    DOMn8 Member

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    Mine is a model 3. The curve is to the right, so if i don't take over quickly, the car is in the trees, not oncoming traffic.
     
  3. SaturnV

    SaturnV Member

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    My parents knocked up a FSD/robo taxi computer over 50 years ago that I'm still using today, I'll stick with that for a while longer yet.
     
    • Funny x 3
  4. Nuclear Fusion

    Nuclear Fusion Active Member

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    Thanks. Just had a 350km drive today. Repeatedly happened on curves.
    Lean towards torque sensor being the issue, but I am interested in your experience as it seems your problem started recently also?
     
  5. DOMn8

    DOMn8 Member

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    Mine only had disengagements over the last week or so, but only in one place that I can recall. It happened at that one place multiple times though. I updated to 2021.4.10 yesterday, and it didn't disengage there on my way home yesterday. Fingers crossed.
     
  6. Smitty22211

    Smitty22211 Member

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    I posted on another thread. My AP was engaged for about 6 miles. Just AP, one hand on lower left steering wheel, Hard breaking and loud warning out of nowhere. I shook the wheel and hit breaks to disengage. No one around except for a car 500 yards back. I have version 2021 4.6. Maybe mine is something different,
     
  7. paulp

    paulp Active Member

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    Thats just classic phantom braking. I’ve had that since tesla decided to invent their own autopilot.
     
  8. Stromi

    Stromi Model 3 SR+

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    Hint: What time of day?
    I find that driving into the low bright sun (AM/PM) causes problems with lane detection and occassional "here, you take over" behaviour.
    Perhaps you can beep the horn to save the dash cam footage? Interesting to note the captured view of front windscreen camera.
     
  9. Nuclear Fusion

    Nuclear Fusion Active Member

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    Warnings should come on while it meanders, not disengage autosteer altogether as if the steering wheel or brake pedal has been moved
     
  10. immolated

    immolated Member

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    Probably the third time I've had to mention it in this thread, but we're not talking about "take over immediately" alarm, we're talking about the "ding-dong", as if you just moved the steering wheel to disengage AP, but tacc is still on.
     
  11. Nuclear Fusion

    Nuclear Fusion Active Member

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    Any further feedback?
    I still haven’t got .10
     
  12. Nuclear Fusion

    Nuclear Fusion Active Member

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    Just got 2021.4.11
    Hasn’t fixed the problem. So must be steering torque sensor & hence pure coincidence
     
  13. DOMn8

    DOMn8 Member

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    I haven't driven much over the last few days, a
    Bugger. I haven't driven much in the last week, and haven't been on the road where my disengagements were happening, so don't have any new feedback.

    Wouldn't a steering torque sensor issue result in more nags to apply more force to the steering wheel rather than just disengaging without warning?
     
  14. Nuclear Fusion

    Nuclear Fusion Active Member

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    I’d prefer a nag, rather than the dangerous disengagement.
    @immolated do you happen to know the thread where others had an issue with the torque sensor? (I’ll do a forum search)
     
  15. aegidius

    aegidius Member

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    Could be my imagination, but I've noticed since recent updates my steering wheel sensor seems more sensitive - it disengages AP with the slightest tug. It's an AP1 Model S, 2020.48.37.1, so probably not relevant to the OP's problem, but it means they might be tweaking things related to the sensor.
     
  16. Nuclear Fusion

    Nuclear Fusion Active Member

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    Tesla Service Centre technician told me 2 years ago that the torque input sensor sensitivity is factory set, after I requested them to increase the sensitivity (the Model X loaner they provided required less input). Maybe I was lied to.
     
  17. Flatbat

    Flatbat Member

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    Maybe you weren't. The steering system has 4 torque sensors forming two redundant systems. They are not serviceable and if faulty the steering rack needs replacing. Tesla can sure as hell modify the threshold at which any of the steering torque related functions occur by software without touching the hardware.
     

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