2005 Buick Century Headlight Bulbs

You need to connect the electrical connector to the headlamp bulb/socket, install the headlamp bulb/socket to the headlamp, rotate the headlamp bulb/socket clockwise until fully seated, install the rubber access covers to the headlamp, connect the electrical connector to the headlamp, position the headlamp mounting tabs to the slots in the upper fascia support and the fender reinforcement, apply light pressure to the headlamp lens to hold the headlamp in place while installing the retainers, align the headlamp retainers over the headlamp mounting tabs, then press the retainers down until fully seated, inspect the headlamp for proper fit, check the headlamp aim, if a new headlamp was installed, or if service or repairs in the front end area may have disturbed the headlamp mounting brackets and close the hood.

You need to open the hood, apply light pressure to the headlamp lens to hold the headlamp in place while removing the retainers, lift the headlamp retainers to release, then remove the retainers, remove the headlamp mounting tabs from the slots in the upper fascia support and the fender reinforcement, disconnect the electrical connector from the headlamp, remove the headlamp and the rubber access covers from behind the headlamp bulb/sockets to be replaced, rotate the headlamp bulb/socket counterclockwise to release, remove the headlamp bulb/socket from the headlamp and disconnect the electrical connector from the headlamp bulb/socket.