How to Replace Headlight Bulbs Yourself (if you can and should) Materials: New light bulb(s) -- Make sure you get the right type of bulb for your vehicle (your local auto parts store should be able to match a bulb with your make and model). If the bulb is wrong, it could affect the other lights on your vehicle. Sometimes parts stores are wrong too! Alcohol wipes and tissues (to clean and hold the new bulb) Phillips screwdriver Step 1: Open your hood and locate the headlight near the front of the vehicle. It will be in a bulb holder, with a power connector (usually three wires) leading to the bulb. Step 2: Remove the power wires The power wires are attached to a plug at the base of the headlight, and held by a plastic catch, a metal clip or a screw cap. The plastic catch will have a small lever at the top -- push down on it while you pull the plug out. If you're dealing with a metal clip, pull it up and away, and be sur...