What should a driver do if another vehicle approaches with high beams at night?

When another vehicle approaches with high beams at night, the appropriate action is to dim your headlights at 500 feet. This practice is crucial for ensuring safety on the road, as using high beams in return can blind the other driver and create a hazardous situation for both vehicles. By dimming your headlights in advance, you provide enough notice to the oncoming driver, allowing them to also adjust their lights if needed.

The reason for the 500-foot guideline specifically is to provide a safe distance within which both drivers can see adequately without impairing each other's vision. Maintaining high beams or using them in return not only increases the risk of an accident but also violates traffic laws that require drivers to be considerate to others on the road. Dim headlights effectively ensure that both you and the other driver can navigate safely without visibility issues.