When a headlight burns out on your car, it can cause visibility problems that need to be dealt with immediately. You should never drive without proper working headlights, as other drivers cannot see you on the road, and your reaction time is reduced when driving with a lack of light. Replacing a headlight bulb is fairly simple and can be done by following the simple steps outlined below.

1 - Buy a replacement bulb from your local auto body parts store that is compatible with the make and model of your vehicle. Ask one of the parts professionals at the store to help you match the bulb to the one you need for the headlights in your vehicle.

2 - Find the headlight holder and disconnect the power that connects to the bulb. The headlight holder is usually located underneath the hood of the car and the power connecter will usually be the three wires grouped together that are simply plugged into the headlight. Make sure the power is disconnected before you begin any work on the headlight to avoid the potential for electrocution.

3 - Remove the headlight from the headlight from the holder by turning it counter clockwise. Discard the old headlight; when possible, recycle it to protect the environment.

4 - Screw in the new headlight bulb into the holder by screwing it into place in a clockwise motion. Make sure that you tighten the bulb snugly but not too tightly; you don't over-tighten it, as you may need to replace it again in the future.

5 - Re-connect the power to the headlight by connecting the power connector to the headlight.

6 - After you have installed the new bulb and connected the power, make sure that you turn on the car and test to make sure that the lights are working properly. Test both the regular running lights and then test the high beams to make sure both are operational. If you have two burnt out bulbs, then you can repeat the steps to fix the second bulb and replace it with a new one.

If the following steps do not fix the problem, it could be a sign of a much larger mechanical issue that needs to be fixed by a professional mechanic like Big Mechanic. You should never attempt to fix complex electrical issues on your car; they should only be inspected or repaired by a professional mechanic.