Similar to the question posted at HID Headlight lateral adjustment | PriusChat, I've found the screws that adjusts the aiming of the headlamps of a Toyota Prius v vertically and horizontally. The image above shows the right headlamp and the two indicators (depicted upside down) where the screws are located. The indicators show "U [screw direction] D" or "L [screw direction] R". If you peek just behind these indicators, you will find the screws positioned about 3 inches deep and perpendicular to your line of sight. Thus, "U/D" adjusts the headlamp vertically while "L/R" adjusts the horizontal aim. Hope this helps some of you looking for the same topic.