How do you replace headlight on 2006 Buick lacross?

To replace the headlight on a 2006 Buick Lacrosse, first, open the hood and locate the back of the headlight assembly. Disconnect the electrical connector by pressing the tab and pulling it off. Remove the headlight bulb by turning it counterclockwise, then replace it with a new bulb by inserting it and turning it clockwise to secure. Finally, reconnect the electrical connector and test the new headlight to ensure it works properly.