r/Cartalk 16d ago

‘Automatic headlights’ don’t work in fog? Safety Question

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

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u/SKATTESTYRELSEN_DK 16d ago

"Automatic headlights" is a switch controlled by a sensor measuring light, or lack thereof. Since fog in the daytime is a visibility due to lack of clarity not lack of light, that sensor doesn't trigger! Also, these are absolutely idiotic drivers!