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Car forgot speed limit on local freeway

Discussion in 'Model S' started by brec, Sep 10, 2016.

  1. brec

    brec Member

    Joined:
    Aug 3, 2015
    Messages:
    299
    Location:
    Reno, NV
    Until a few days ago, my MS seemed to know that the speed limit on a local freeway was 65 without having to read a speed limit sign. While still on an on-ramp, the TACC default would become 76 -- I have the Speed Assist set to relative +11 (10 over + 1 for speedometer error adjustment). I don't specifically recall whether the speed limit showed as 65, but I'm sure about the TACC default.

    Now, on the on-ramp and on the freeway until a speed limit sign is seen, the TACC default and the speed limit remain blank, and engaging TACC causes it to set to whatever speed I'm currently driving.

    It's only a minor inconvenience, but I'm curious as to what may have changed. The car's been running 2.28.19 for almost two months.
     
  2. green1

    green1 Active Member

    Joined:
    Mar 25, 2014
    Messages:
    4,552
    Location:
    Calgary, Alberta, Canada
    Autopilot downloads "tiles" independent of full map updates or firmware revisions. It's possible it got new data on one of those that caused the change.
     

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