How do you change headlight bulb on fiat 500?

To change the headlight bulb on a Fiat 500, start by opening the hood and locating the back of the headlight assembly. Disconnect the electrical connector by gently pulling it off, then remove the rubber cover if present. Twist the bulb socket counterclockwise to release it, then pull out the old bulb and insert the new one, ensuring not to touch the glass. Reassemble by reversing the steps, making sure everything is securely in place.