1999 Buick LeSabre Owner's Manual - Page 272

yellowblue 1. Turn the horizontal aiming screw (A) until the indicator (C) is lined up with zero. A. Horizontal Aiming Screw C. Indicator 2. Turn the vertical aiming screw (B) until the level bubble (D) is lined up with zero. H-46-0860-X Front Turn Signal The front turn signal bulbs can be accessed from under the front of the vehicle. Reach up from under the vehicle and, while pushing in the tab on the bulb assembly, turn the assembly counterclockwise and remove. Remove the old bulb by pulling it straight out of the retainer. Replace the bulb and turn the bulb assembly back into place. Cornering Lamps Follow the same procedure as used for replacing the headlamps. However, to remove the cornering lamp bulb, turn the bulb assembly counterclockwise and pull the bulb straight out. H-46-0862-X B. Vertical Aiming Screw D. Level Bubble 6-36