What does it mean when the turn signal lights at the back of a car are on?
2 Answers
When the turn signal lights at the back of a car are on, it indicates that the car is about to turn. Here is detailed information about car lights: 1. Headlights: The main purpose of headlights is to illuminate the road and objects ahead to ensure driving safety. They can also be used as a signal for overtaking at night by alternating between high and low beams. Headlights are installed on both sides of the front of the car, with 2 or 4 lights per vehicle. The bulb power is 45-60W for high beams and 25-55W for low beams. 2. Fog lights: Fog lights are installed near the headlights or slightly lower. In low visibility conditions such as fog, snow, heavy rain, or dust, fog lights serve to illuminate the road and signal to oncoming vehicles. The light is mostly yellow, as yellow light has a longer wavelength and better fog-penetrating performance. The bulb power is generally 35W.
When the turn signal at the rear of a car lights up, its primary purpose is to inform nearby drivers and pedestrians that the vehicle is about to turn or change lanes. Over my years of driving, I've found that this light acts like the silent language of the driver, effectively reducing the risk of accidents. For example, when merging on the highway, if I flash the right turn signal in advance, the car behind will slow down to give way, avoiding a rear-end collision. Traffic laws clearly state that drivers must use turn signals; otherwise, they face fines or penalty points. Additionally, it's important to distinguish between turn signals and brake lights—if the light stays on without turning, it might be left on by mistake or indicate a wiring issue that needs immediate inspection. In short, when you see a turn signal, proactively maintain distance to allow safe maneuvering.
