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Auto Headlight ON/OFF High Sensitivity

Discussion in 'Model X: User Interface' started by M.V.P., Sep 27, 2017.

  1. M.V.P.

    M.V.P. Member

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    Vin#...50344 - Software Version# 2017.34.2448cfc
    ISSUE: Auto headlights will come on with even the slightest amount of intermittent shade on very sunny days or when the sun is lower in the sky later in the afternoon.

    Has anyone else experienced this issue of the headlight sensor being overly sensitive in their Model X?

    I asked my local Service Center (Mt Kisco, NY) if they could turn down the sensitivity a bit but they said it was all software version-controlled and not a parameter they could access directly themselves. They also said that others have complained about this and were hoping for a future software updated to correct.

    NOTE: My previous car was a Model S, which I traded up for the X, and I felt that the Model S' auto headlights were calibrated correctly so I did not experience this issue.
     
  2. ahkahn

    ahkahn Member

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    Interesting. I've got a ticket in right now because my headlights, when set to auto, will not turn off AT ALL. I can manually turn them off with the setting, but if set to auto, they're always on. Tesla is investigating right now.... I suspect we have a similar issue.
     
  3. M.V.P.

    M.V.P. Member

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    I'd venture a guess that Tesla's light sensor supplier has a manufacturing problem and a small percentage of their units are defective. So even though all vehicles are software calibrated to the same sensitivity rates these units are causing headlights to come on prematurely or stay on all the time.
     
  4. ahkahn

    ahkahn Member

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    That's my guess. Oddly enough, not sure if the screens have their own different sensor, but during the day my screen is in day mode and at night it goes into night mode. They work just fine. It's just the lights that think it's night time all the time.
     
  5. andrewket

    andrewket Well-Known Member

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    Your AP1 model S had a dedicated light sensor. AP2 cars use the AP cameras to determine if the lights should be on. As you have noticed, it’s currently quite flawed. The good news is Tesla can improve it with OTA updates. I’m sure they will, but their focus has been on model 3.
     
  6. ditzpro

    ditzpro Member

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    Well, I wish they would fix it ..My X was delivered Oct 25 and it's still like that .(overly sensitive )
    Lights are rarely off .
     
  7. violinist22

    violinist22 Member

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    My "auto" lights were working fine for the first 5 months/4K miles until two days ago. Now they stay on all the time (until I leave the car). i figure it's a faulty sensor or a software problem. Day/night screen mode is working fine. I plan to ask about it the next time I'm at the SC.
     
  8. M.V.P.

    M.V.P. Member

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    #8 M.V.P., Nov 21, 2017
    Last edited: Nov 21, 2017
    Well it's been 2 months now and numerous OTA updates (Current Version: 2017.46...) and I haven't really noticed much of a difference, so if this is software related they haven't addressed it yet. BuI I still maintain it's a hardware problem because others are complaining about their lights not turning off at all rather than just being hyper-sensitive. Assuming we all have the same software algorithm currently then we all should be experiencing the same exact symptoms, which we aren't.

    @andrewket - if the newer AP2 cars are using the AP camera instead of a simple light sensor these cameras could still have manufacturing inconsistencies causing light sensitivity miscalibrations.

    BTW, my main interior display does switch between day/night mode correctly on it's own but it does seem to be a bit slow in the transition and takes a few extra seconds to properly adjust it's brightness level after the switch over.
     
  9. andrewket

    andrewket Well-Known Member

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    Except that all AP2 cars seem to exhibit this behavior. My sense is the AP team will need to fix this, and it’s currently very low priority compared to getting EAP and FSD done.
     
  10. M.V.P.

    M.V.P. Member

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    AndrewKet, my Model X is an AP2 car (purchase date 6/2017) but my lights do not stay on all the time, as others have complained about here. My lights are simply overly sensitive either late in the afternoon or in the shade on even the sunniest of days.
     
  11. andrewket

    andrewket Well-Known Member

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    We’re debating the frequency by which the lights are on when we think they should be off. I didn’t say mine were on ALL (100%) the time. I’d estimate they are on 70% of the time I think they should be off.
     
  12. rush6410

    rush6410 Member

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    Mine seems to be working as expected. The only times they come on during the day is when I would expect them to turn on; tunnel, covered parking lot where it is very dark, garage. So on a very small percentage of the day. Sounds like a light sensor calibration issue. The center display uses different logic and sensors to determine daytime/nighttime.
     

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