How do you change low beam bulb on a 2009 Mazda 6?

To change the low beam bulb on a 2009 Mazda 6, first, open the hood and locate the headlight assembly. Remove the electrical connector by gently pulling it off the bulb. Then, twist the bulb socket counterclockwise to release it from the assembly and replace the old bulb with a new one, ensuring not to touch the glass part of the bulb. Finally, reinsert the socket, reconnect the electrical connector, and test the new bulb to confirm it works.