horizontal aiming screw BUICK LESABRE 2003 Owner's Manual

The headlamp aiming devices are under the hood near
the headlamps.
If you believe your headlamps need horizontal (left/right)
adjustment, follow the horizontal aiming procedure. If
you believe your headlamps need only vertical
(up/down) adjustment, follow only the vertical aiming
procedure.
Adjustment screws can be turned with an E8 Torx
ž
socket or T15 Torxžscrewdriver.
Headlamp Horizontal Aiming
Turn the horizontal aiming screw (A) until the
indicator (B) is lined up with zero.
Once the horizontal aim is adjusted, then adjust the
vertical aim.
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Notice:Do not cover a headlamp to improve beam
cut-off when aiming. Covering a headlamp may
cause excessive heat build-up which may cause
damage to the headlamp.5. Turn the vertical aiming
screw (C) until the
headlamp beam
is aimed to the
horizontal tape line.
The top edge of the cut-off should be positioned at
the bottom edge of the horizontal tape line.
6. Repeat Steps 4 and 5 for the opposite headlamp.
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