What does the auto setting for car lights mean?

[ElenaMarie]

Auto in car lights refers to the automatic headlights feature, where the headlights will automatically turn on or off when the light intensity exceeds or falls below a certain threshold. The full name for auto headlights is 'automatic light-sensing front headlights,' which primarily relies on a key component, the ambient light sensor, to determine whether the lights need to be activated. Auto headlights can automatically control the switching on and off of the lights. For example, when entering a tunnel suddenly during the day and forgetting to turn on the lights, the auto headlights will activate automatically. Similarly, during dawn or dusk when the light is poor, the headlights will turn on by themselves to illuminate the road ahead, enhancing safety. Auto headlights are controlled by the vehicle's onboard computer, with the ambient light sensor sending signals to the ECU to instruct whether to turn the headlights on or off. This feature is designed to be user-friendly, providing convenience for car owners.