1998 Buick Century Owner's Manual - Page 291

Headlamps 4. Connect the new headlamp assembly to the wiring harness, making sure the connector tab snaps into place. 5 . Insert the headlamp into the slots in the fascia. 6. Slide the retainers downward until they are fully seated. Headlamp Aiming Your vehicle has a modular headlamp system. These headlamps have horizontal and vertical aim indicators. The aim has been optically pre-set at the factory and should need no further adjustment. If ybttftrehicle is damaged in an accident and the headlamp aim seems to be affected, see your dealer. Headlamps on damaged vehicles may require recalibration of the vertical and horizontal aim by your dealer. I. Pull up on the headlamp retainers to release the assembly locator tabs. 2. Slide the headlamp assembly out of the slots. 3. Lift the plastic locking tab on the electrical connector and pull the connector from the headlamp bulb socket.