1994 Buick LeSabre Owner's Manual - Page 239

Each headlamp is attached by retainers with round plastic knobs. Remove the retainers by turning in a counter-clockwise direction. I. I Turn the bulb socket 1/4 turn counter-clockwise, while pressing it firmly. C Remove the wire connector from the bulb by lifting the lock tab and pulling it away from the plastic base. Lift the headlamp away from the car. Pull the bulb socket straight out. To install, attach the wire connector (A) to the plastic base making sure the lock tab (B) is over the lock (C). Install the bulb by putting the small tab (D) into the small notch in the lamp (E). Turn the bulb socket 1/4 turn clockwise to lock it into place. When reinstalling the headlamp assembly into the headlamp mounting panel make sure the tab is properly engaged in the panel slot. 237