What must a driver do when high beams are on and an oncoming vehicle is within 500 feet?

When high beams are on and an oncoming vehicle is within 500 feet, the appropriate action is to switch to low beams. This is to avoid blinding the driver of the oncoming vehicle, as high beams can be very bright and cause temporary vision impairment. Using low beams in this situation ensures that both drivers can see safely without hindrance.

It is a crucial part of road safety to operate vehicle lights correctly in order to maintain visibility while also being considerate of other drivers. Using low beams when approaching another vehicle helps to reduce glare, facilitating safer driving conditions for everyone on the road.