Where are headlight adjustment screws on 2000 frontier?

On a 2000 Nissan Frontier, the headlight adjustment screws are typically located on the back of the headlight assembly. There are usually two screws for each headlight: one for vertical adjustment and another for horizontal adjustment. You can access them by opening the hood and looking towards the rear of the headlight assembly. Use a Phillips screwdriver or a Torx bit to make the adjustments as needed.