What Causes the Headlight Beam to Change from Far to Near?

[OFelicity]

When the headlight beam distance changes from far to near at night, it may indicate that the vehicle is transitioning from a curved road to a straight section. Here are some relevant details: From Far to Near: If the headlight beam distance changes from far to near at night, the road ahead might be entering a curved section with a mountain or barrier on one side, reaching the low point of a slope, or approaching or entering an uphill section. From Near to Far: If the headlight beam distance changes from near to far while driving at night, the road ahead might be transitioning from a curve to a straight section, entering a downhill slope, changing from a gentle downhill to a steep downhill, or transitioning from a downhill to a flat road. Lights Leaving the Road Surface: If the headlights appear to leave the road surface while driving, the road ahead might have a sharp turn, a large pothole, or the vehicle might be reaching the top of a slope.