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AP Speed Limit Issues coming out of Alma & Hartsel

Discussion in 'Mountain/Southwest' started by COS Blue, Feb 9, 2021.

  1. COS Blue

    COS Blue Member

    Joined:
    Oct 18, 2020
    Messages:
    60
    Location:
    Colorado Springs, Colorado
    Driving from Breckenridge to Colorado Springs, I have this issue every time. When I leave Alma and then again leaving Hartsel, the speed limit goes up to 65, but my MS does not recognize this and thinks the speed limit is 45. This of course makes it so that I cannot use autosteer until it finally sees a speed limit sign miles and miles down the road.

    Anyone else have this issue? Is something wrong with my car, or just buggy software?
     
  2. PLUS EV

    PLUS EV Running on Empty

    Joined:
    Sep 16, 2016
    Messages:
    5,767
    Location:
    Seattle
    There are similar speed limit bugs all over the country and yeah, it's very annoying! 45mph seems to be the default speed limit on roads where the Nav doesn't seem to know the actual speed limit. The bad news is it's been like this for quite some time. The good news is these errors can theoretically be corrected through software updates.
     
  3. Ostrichsak

    Ostrichsak Active Member

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    Sep 6, 2018
    Messages:
    3,178
    Location:
    Colorado, USA
    How long have you noticed this behavior and prior to that did it work fine? You may not have data from far enough back to answer that.

    I've noticed a couple of places around the Fort Collins and Loveland area where it used to work just fine and as of roughly a year or a little more ago it now takes a while to recognize a speed limit change. Granted it's not miles but we're talking lower speeds so maybe it's closer and relative terms. All of my experiences with AP1 cars and the behavior at these few locations is mirrored identically across all of them.
     
  4. mociaf9

    mociaf9 Active Member

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    Oct 18, 2018
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    2,388
    Location:
    CA
    Buggy map information, not the software itself. If the maps the car uses for AP don't have a speed limit attached or have the wrong speed limit attached, this is the result.
     
    • Informative x 1
  5. Ostrichsak

    Ostrichsak Active Member

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    Location:
    Colorado, USA
    This makes sense and my experience supports this as it began at a few specific known locations shortly after a map update I had received. Whatever data the previous map info had was accurate in these locations but was changed for the negative. To be fair, I also noticed a couple other specific locations that began behaving properly around the same time. It was a net wash seemingly but we also tend to notice the negative pain points more as is human nature generally. My guess is that overall most map updates are going to be a net positive and will try to apply that logic whenever I experience these minor annoyances that are speed limit related.
     
  6. COS Blue

    COS Blue Member

    Joined:
    Oct 18, 2020
    Messages:
    60
    Location:
    Colorado Springs, Colorado
    I've only had the car a few months, so it has never worked for me at these locations.

    I thought the car was supposed to recognize the speed limit signs -- so even if the map data wasn't right, the speed limit sign should override it?
     
  7. PLUS EV

    PLUS EV Running on Empty

    Joined:
    Sep 16, 2016
    Messages:
    5,767
    Location:
    Seattle
    I'll let someone else chime in with the specifics, but I've done significant miles in both an AP1 Model S and an AP2 Model S. The AP1 car tended to rely on actually reading the signs, while the AP2 car tends to rely on inputted data. In my experience.
     

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