2012 Buick LaCrosse Owner Manual - Page 370

10-32 Vehicle Care 7. Locate the vertical headlamp aiming screws, which are under the hood near each headlamp assembly. 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. Base 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. Uplevel