Buick 2000 LeSabre Owner's Manual page 292

4. Rotate the bulb retainer counterclockwise to remove
the bulb assembly.
5. Pull the bulb straight out from the retainer.
6. Push the new bulb straight into the retainer.
7. Reverse these steps to replace the bulb assembly.
Headlamp Aiming
Your vehicle has a visual optical headlamp aiming system
equipped with horizontal aim indicators. The aim has
-
been pre set at the factory and should need no further
adjustment. This is true even though your horizontal aim
indicators may not fall exactly on the "0" (zero) marks on
their scales.
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