2007 Cadillac XLR-V Owner's Manual - Page 410

Headlamp Vertical Aiming To properly prepare the vehicle for vertical headlamp aiming see Headlamp Aiming on page 408 for more information. To adjust the vertical aim, do the following: Notice: Horizontal aiming must be performed before making any adjustments to the vertical aim. Adjusting the vertical aim first will result in an incorrect headlamp aim. 1. Open the hood. See Hood Release on page 373 for more information. 2. Locate the aim dot on the inner projector lens of the low-beam headlamp. 3. Measure the distance from the ground to the aim dot on each low-beam headlamp. Record this distance. 4. At the wall or other flat surface, measure from the ground upward (A) to the recorded distance from Step 3 and mark it. 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. Draw or tape a horizontal line (B) on the wall or flat surface the width of the vehicle at the height of the mark in Step 4. 6. Turn on the low-beam headlamps and place a piece of cardboard in front of the headlamp not being aimed. This should allow only the beam of light from the headlamp being aimed to be seen on the flat surface. 410