What Are the Possible Reasons When Both Low Beam Lights of a Car Don't Work?

[StAngela]

The reasons why both low beam lights don't work may include bulb damage, blown fuse, relay failure, or issues with the low beam light circuit. Below are the solutions for non-functioning low beam lights and precautions for using low beam lights: Solutions for non-functioning low beam lights: If the problem lies with the bulb, simply replace it. If the bulb is fine, proceed to check the fuse and relay, and finally inspect the circuit and headlight assembly. A blown fuse is a common issue, and it's advisable to visit a 4S shop or professional auto repair shop for inspection. Precautions for using low beam lights: Low beam lights must be turned on when driving at night in areas without streetlights, during dusk when visibility is low, or at dawn. Additionally, in conditions of heavy fog, snow, or rainstorms where visibility is significantly reduced, low beam lights should also be used during the day for traffic safety.