Why Does the Headlight Beam of a Vehicle Shift from the Road Center to the Side at Night?
2 Answers
At night, the headlight beam of a vehicle shifts from the center of the road to the side because there is a curve ahead. Additional information is as follows: 1. Introduction: Night driving refers to operating a vehicle during nighttime. Due to reduced visibility, there are several aspects drivers need to pay attention to: for example, headlights must be turned on at night, the distance between vehicles should be increased when overtaking, high beams should be used when the speed exceeds 30 km/h, and the lights must illuminate at least 100 meters ahead. These driving essentials must be mastered. 2. Light Usage: Headlights are indispensable auxiliary tools for night driving. In terms of usage, it’s important not to turn on fog lights and headlights simultaneously and to understand how to use and switch between different lights.
While driving, especially at night, it's common for headlights to suddenly shift from the center of the road to the roadside. I often encounter this minor issue. The most typical reason is when turning or driving on a curve—the headlights naturally follow the direction of the road rather than shining straight ahead. Additionally, potholes or steep slopes can cause the car to jolt, altering the angle of the lights. I've personally experienced this on mountain roads with many potholes, where the lights frequently flicker, making it hard to see obstacles in the middle of the road. For safety, it's best to slow down when driving at night, stay focused on the illuminated area, and anticipate curves in advance. If there's fog or rain, use fog lights to reduce blind spots and ensure stable visibility. Overall, this is usually a harmless minor issue, but if it happens frequently, it's worth checking the headlight adjusters or suspension system to prevent accidents.
