How do you change the front signal bulb on a 2008 cadillac DTS?

To change the front signal bulb on a 2008 Cadillac DTS, start by opening the hood and locating the headlight assembly. Remove the retaining screws or clips holding the assembly in place, then gently pull it out. Twist the bulb socket counterclockwise to remove it, replace the old bulb with a new one, and reassemble the headlight assembly by reversing the steps. Be sure to test the new bulb before closing the hood.