Is it possible to fix a bad low beam headlight?

Fortunately, fixing a bad low beam is a straight forward process in the majority of vehicles that can be done by most people without just a few hand tools. If replacing your headlight bulb does not work, there may be an electrical issue in your vehicle that should be addressed by a professional. Identify a blown out bulb.

What happens when one of the headlights is not working?

When one of the headlights is not working, the bulb of the faulty lamp may have burnt. The lifespan of bulbs is limited and this is greatly dependent on usage as well as magnitude of vibration they are exposed to. There is no way the tungsten filament in the incandescent bulb will not burn out.

Do you need to replace both high and low beams?

Some vehicles use a single bulb for both high and low beams while others do not. If the high beam on the same side is also out, it may be one bulb. You do not need to purchase specific bulbs for each side, but identifying which is the blown out bulb will help you to replace it without having to start the vehicle again.

Why is my left low beam light not working?

If both work then check fuse #26 and left low beam relay in the engine compartment fuse box. Either the fuse is blown from the last bulb or the relay is burned out from the last bulb. If the light still does not work then the smart junction box inside the vehicles left ’A’ pilar may be bad and would need to be checked.

Why do high beam headlights work but low beams don’t?

Most headlight systems are also designed with a relay that switches the power between low beam and high beam headlights. If this relay goes bad, it could allow power to the high beams, but not the low beams. 1. Headlight Bulbs This is the most common reason we see for why a car’s high beam headlights work but the low beams don’t.

What to do if your left headlight is not working?

If only your left headlight is not working then try to turn on the high beam and see if both headlights work on high beam. If both work then check fuse #26 and left low beam relay in the engine compartment fuse box. Either the fuse is blown from the last bulb or the relay is burned out from the last bulb.

Can you replace both headlight bulbs at the same time?

So replace both bulbs at the same time. For many vehicles these days, one bulb serves for both high and low beams. In older models, however, two separate headlight bulbs were used on both sides. Either replace both bulbs or all four bulbs at the same time for a consistent field-of-vision down-road.