Cadillac 2009 DTS, Owner'S Manual

Page: 349 / 462

7. Locate the vertical headlamp aiming screws. They
are located under the hood near each headlamp
assembly. First lift the flap to access either of them.
Each one is the top outboard screw by the “V” on the
cover panel next to the aiming flap.
The adjustment screw can be turned with a 6 mm
hex wrench.
8. Turn the vertical aiming screw until the headlamp
beam is aimed to the horizontal tape line. Turn it
clockwise or counterclockwise to raise or lower the
angle of the beam.
The top edge of the cut-off should be positioned at
the bottom edge of the horizontal tape line.
9. Make sure that the light from the headlamp is
positioned at the bottom edge of the horizontal tape
line. The lamp on the left (A) shows the correct
headlamp aim. The lamp on the right (B) shows the
incorrect headlamp aim.
10. Repeat Steps 7 through 9 for the opposite
headlamp.
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