Ford F-150 Owner's Manual page 338

Headlamp Aiming Target
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A 8 feet (2.4 meters).
B Center height of lamp to ground.
C 25 feet (7.6 meters).
D Horizontal reference line.
Vertical Aim Adjustment
1. Park your vehicle directly in front of a
wall or screen on a level surface,
approximately 25 feet (7.6 meters)
away.
2. Measure the height from the center of
your headlamp (indicated by a 3.0
millimeter circle on the lens) to the
ground and mark an 8 foot (2.4 meter)
horizontal reference line on the vertical
wall or screen at this height (a piece of
masking tape works well).
Note: To see a clearer light pattern for
adjusting, you may want to block the light
from one headlamp while adjusting the
other.
3. Switch on the low beam headlamps to
illuminate the wall or screen and open
the hood. Cover one of the headlamps
so no light hits the wall.
F-150 (TFC) Canada/United States of America, enUSA, Edition date: 201607, Second Printing
Maintenance
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4. For halogen or LED headlamps: On
the wall or screen you will observe a
light pattern with a distinct horizontal
edge toward the right. If this edge is not
at the horizontal reference line, you will
need to adjust the beam so the edge
is at the same height as the horizontal
reference line.
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5. Locate the vertical adjuster on each
headlamp. Use a #2 Phillips
screwdriver to turn the adjuster either
counterclockwise or clockwise in order
to adjust the vertical aim of the
headlamp.
6. Repeat Steps 3 through 7 to adjust the
other headlamp.
7. Close the hood and turn off the lamps.
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