What does headlight adjustment 123 mean?
2 Answers
Headlight adjustment 123 refers to three different levels for adjusting the height of the headlights, with each level corresponding to a different illumination distance. These three levels allow adjustment of the low beam height, where the numbers represent the light projection height - level 3 being the highest. Many premium vehicle models come equipped with automatic headlight systems that can independently adjust the headlight height and brightness according to road conditions, significantly enhancing both safety and convenience. Automotive headlights, also known as front headlamps or LED daytime running lights, serve as the 'eyes' of a car. They not only affect the vehicle's exterior appearance but are also crucial for safe driving during nighttime or adverse weather conditions.
When I bought a car before, I was curious about what the headlight adjustment numbers 1, 2, and 3 meant. Later, I understood that those numbers represent preset positions for headlight height: position 0 is the lowest, suitable for an unloaded car; position 1 is medium, ideal for daily use; position 2 is slightly higher, suitable when carrying some items in the trunk; and position 3 is the highest, meant for a fully loaded car, like when traveling with the whole family and lots of luggage. Proper adjustment improves the beam angle, preventing glare for oncoming drivers at night. I once drove a long distance and forgot to adjust the lights—the low beam made it hard to see the road, and I almost hit something. Since then, I often manually check the knob position. Newer cars mostly have automatic adjustment, but older models require manual setting. Remember, adjusting the level according to the car’s weight ensures better visibility and reduces accident risks. During every maintenance check, ask the technician to verify the headlight alignment to avoid fines for improper lighting.
