What is the small light on a car?
2 Answers
Car small light is actually the position light, also called width light, which is a warning light generally installed on the edge of the car roof to indicate the width of the vehicle. The function of car small light is to remind other vehicles to pay attention when driving in the evening or at night, so that other vehicles can judge their relative positions and vehicle size when meeting or overtaking. When car small light needs to be turned on: Driving in foggy weather: Visibility is low in foggy weather, and the view is blurred. While turning on the fog light, the position light also needs to be turned on, which can play a good warning role and make it easier for other vehicles to identify. Rainy weather: The view is also blurred in rainy weather, and the car small light can be turned on alone for warning purposes. Driving in the evening: The road surface is still clear in the evening, but due to the lack of street lights, the front and rear vehicles start to become blurred. For safety, the car small light needs to be turned on to make it easier for other vehicles to see. Driving at night: Traffic regulations stipulate that the rear tail light and position light must be turned on when driving at night to alert the vehicles behind.
Through years of driving, I've deeply appreciated the importance of small lights, officially known as position lights or marker lights. Typically installed on both sides of the front and rear of the vehicle, they help outline the car's profile in low-light conditions such as night, dawn, or fog. Unlike headlights, small lights emit a soft glow that isn't too harsh, making it easier for other drivers to spot your position and avoid collisions. Operating them is simple—just turn the light switch near the steering wheel to the first position. I often remind myself to turn on the small lights when parking in the city or before entering tunnels—not only for safety but also to reduce the risk of fines. Regularly check the bulbs, as aging or burnout is common. You can easily replace them with a screwdriver—low cost and minimal time. Remember, road safety starts with these small details; small lights may be minor, but their role is significant.
