At what distance from an oncoming vehicle should you switch to low beams during nighttime driving?
3 Answers
You should switch to low beams when approximately 150 meters away from the oncoming vehicle and coordinate with the opposite vehicle for low beam usage. Below is additional information: Usage of vehicle lights during nighttime driving: When meeting vehicles on roads without central separation facilities or center lines, do not use high beams within 150 meters of the oncoming vehicle; when meeting non-motor vehicles on narrow bridges or narrow roads without central separation facilities or center lines, do not use high beams; when driving at night on roads without streetlights, under poor lighting conditions, or in low visibility situations such as fog, rain, snow, or dust, do not use high beams when following closely behind another vehicle traveling in the same direction; when passing sharp curves, slopes, arched bridges, crosswalks, or intersections without traffic signals, alternate between high and low beams as a signal.
When meeting another vehicle at night, you should generally switch to low beams at least 150 meters away. After driving for a long time, I've developed this habit, which is quite scientific—it avoids dazzling the other driver with high beams. Otherwise, the other driver might be blinded and unable to see the road clearly, increasing the risk of hitting obstacles or veering off course. I remember driving on a rural night road when an oncoming car didn't dim its lights—I was momentarily blinded and nearly drove off the road, which was quite frightening. Now, as soon as I see headlights in the distance, I estimate the distance and switch early. Night driving safety comes first, especially on curves or in rainy or foggy conditions—always leave some margin, switching lights at least 150 meters away. This follows the rules and protects everyone. Since adopting this habit, my drives have gone much smoother.
When I was learning to drive, my coach repeatedly reminded me: when meeting another car at night, remember to switch to low beams at least 150 meters away. As a beginner, I was clumsy and often couldn't estimate the distance accurately, missing the timing and getting flashed by the other driver as a reminder. Later, I understood that switching lights at 150 meters allows both parties to see the road clearly and avoids accidents caused by blinding glare. In practice, I used roadside trees or utility poles to estimate distances for practice. The rule is simple but crucial—don't neglect it when driving at night. Taking action 150 meters in advance ensures safety, and beginners should practice more to get familiar with it.
