‘Automatic headlights’ don’t work in fog?

[u/clynchy97]

About 40-50% of the cars we passed on the road today had no headlights on or only had the dim side lights. Do automatic lights not work in fog for these modern cars? Seems super sketchy

[u/stevekuehltruhe]

Nope. They work with a brightness sensor. Technically speaking it's "bright enough" in the fog so they don't activate.

I think for some premium cars they work in conjunction with other sensors and maybe even GPS/weather data.

Edit: But what I really find annoying is that the dtrl only light up the front LEDs and not the rear lights. I feel like that would be the bare minimum for this case.

[u/pandaSmore → u/stevekuehltruhe]

But what I really find annoying is that the dtrl only light up the front LEDs and not the rear lights.

That's because there are no day time running lamps on the back.

[u/stevekuehltruhe → u/pandaSmore]

Exactly my point. There should be.

[u/Future_Difficulty → u/stevekuehltruhe]

Yeah honestly all cars should have their headlights or running lights on all the time. There should still be a way to turn them off but the default should be on while the car is running.