What are the standards for adjusting car lights?

[Caroline]

Drive the car onto a flat road, align the low beam points at a 30-meter distance and merge them together, then adjust the high beam points to be parallel to the ground. Below is relevant information about car light adjustment: 1. Low beam adjustment: Vehicle light adjustment typically involves the left-right and height alignment of low beams, which can be adjusted via the knobs behind the headlight assembly. Owners can adjust the lights themselves using tools. 2. Headlight adjustment: Lift the engine hood, locate the adjustment knobs at the rear of the headlight assembly, and use the appropriate tools for adjustment. Before adjusting, determine whether the knob controls left-right or up-down alignment. Park the vehicle directly facing a wall at a distance of about 10 meters, observe the height of the left and right lights, and use tape or other markers for measurement and comparison if necessary, then proceed with adjustment.