How do you change a taillight bulb on a 2012 Ford Fusion?

To change the taillight bulb on a 2012 Ford Fusion, first, open the trunk and locate the access panel behind the taillight assembly. Remove the screws or clips securing the panel, then pull it away to expose the back of the taillight. Twist the bulb socket counterclockwise to remove it, then pull out the old bulb and replace it with a new one. Finally, reassemble the components by reversing the steps, ensuring everything is securely fastened.