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Speed limit detect failing--can it be disabled?

Discussion in 'Model 3: Driving Dynamics' started by cstork, Sep 19, 2020.

  1. cstork

    cstork Supporting Member

    Joined:
    Oct 29, 2018
    Messages:
    128
    Location:
    Colorado
    I took a 120 mile drive in Colorado on a 2 lane highway yesterday and the new auto speed limit sign detector failed quite a bit. It kept reading the speed as 45 when the sign said 65 !?! It made autopilot useless. Is it possible to disable the sign detector and go to how things were before the recent upgrade?
     
    • Helpful x 1
  2. Lexdysic

    Lexdysic Member

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    Aug 5, 2020
    Messages:
    92
    Location:
    Rockville, MD
    It is frustrating, and can actually be dangerous if the speed variance is drastic. It's a big change from 65mph to 25mph, and the traffic behind doesn't expect your car to drastically slow down.

    I've only experienced this once so far, but the incorrect reading did cause an adverse situation and I had to immediately step on the accelerator.
     
    • Like x 1
  3. john5520

    john5520 Member

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    Mar 3, 2020
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    769
    Location:
    Florida
    Did the screen visualization show the speed signs as you were passing them? I ask because it could have been relying on mapping data on that stretch of the road. And the data is often wrong in some places. Also, the speed limit reading may not work on the freeway yet(for me, it ignores them completely).
     
  4. cstork

    cstork Supporting Member

    Joined:
    Oct 29, 2018
    Messages:
    128
    Location:
    Colorado
    Yes, it was definitely the speed limit signs. I was driving at ~70, so perhaps the sign reading doesn't work well at high speeds.
     
  5. mswlogo

    mswlogo Well-Known Member

    Joined:
    Aug 27, 2018
    Messages:
    5,759
    Location:
    MA, NH
    You can turn off speed sign reading by disabling that new beta feature you turned on.

    I bet it’s map data too.
     
    • Disagree x 1
  6. BM3LRPUP19

    BM3LRPUP19 Member

    Joined:
    Jun 29, 2018
    Messages:
    37
    Location:
    San Francisco
    I’m currently on a road trip from California, Nevada, Utah and Colorado, speed limit detection has been really bad in Colorado and Utah making nav on ap useless for hundreds of miles, seeems to detection slower but never speeds back up to 65.
     
    • Informative x 1
    • Like x 1

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