How do you change the headlights of a 2004 Mazda 3?

To change the headlights on a 2004 Mazda 3, first, open the hood and locate the back of the headlight assembly. For the low beam, twist the connector counterclockwise to remove it, then pull out the old bulb and replace it with a new one, taking care not to touch the glass. Reinsert the connector and twist it clockwise to secure it. Repeat the process for the high beam if necessary, and close the hood once you're done.