Why Does the Low Beam Light Turn Off When the High Beam Is On?

[MariaFitz]

There are two possible reasons: 1. If the high beam is on but one of the low beams is off, it may be due to a broken filament in the low beam bulb. This is relatively easy to fix—simply replace the bulb. 2. If both low beams are off and the filaments are intact, the car owner should check whether the low beam switch is properly connected or if the low beam fuse is functioning normally. Additional Information: Usage of Car Headlights: 1. Generally, vehicle light combination switches come in two types: lever-style and knob-style. The low beam position is marked on the switch. Rotate the light control switch handle to the low beam position to turn on the low beams. 2. Whether it's a lever-style or knob-style light switch, the high beam is activated by moving the lever. Pushing the lever toward the engine compartment keeps the high beam on continuously. Pulling it back one position turns off the high beam. To switch between high and low beams, simply toggle the light control lever back and forth.