2018 Dodge Ram 1500 Headlight Upgrade: Halogen to LED Conversion Guide storeboard.com

The installation process for a full LED headlight assembly is relatively straightforward for a DIY mechanic. Begin by disconnecting the negative battery terminal to prevent electrical shorts. Remove the factory headlight assemblies by locating the mounting bolts, which are typically accessible from behind the headlight or under the front fender liner. Carefully unplug the wiring harness from the back of the assembly. Install the new LED assembly in reverse order, ensuring all connectors click firmly into place. Before securing the mounting bolts, test the lights to verify that low beam, high beam, turn signals, and parking lights all function correctly. Once confirmed, tighten the bolts and reinstall any trim or grille components you removed. Aim the headlights properly by parking the truck on a level surface facing a wall about twenty-five feet away. Adjust the vertical and horizontal aimers until the beam pattern is centered and the cutoff line is slightly below the horizontal center of the headlight.