The headlight in your Hyundai Tucson should be checked periodically to make sure that it is functioning normally. The headlight can burn out suddenly for a few reasons. The most common reason is moisture build-up inside the housing assembly. When moisture builds up inside the housing assembly, it can collect on the surface of the headlight. If this happens, then the bulb portion of the headlight can explode, or the moisture can cause an electrical short. Replacement headlights can be purchased from most auto parts stores.
Open the hood and remove the two retaining screws on the top of the headlight housing assembly with a Phillips head screwdriver.
Slide the housing assembly forward.
Remove the power connector from the back of the headlight ballast.
Remove the bail wire clip from the back of the headlight.
Pull the headlight out of the housing assembly.
Insert the new headlight into the housing assembly and replace the bail wire clip to secure the headlight to the housing assembly.
Plug the electrical power connector back into the headlight ballast.
Slide the headlight back against the frame. Thread and tighten the mounting screws with a Phillips head screwdriver.