How do you replace headlight housing 2004 Subaru imprezza outback?

To replace the headlight housing on a 2004 Subaru Impreza Outback, first, ensure the vehicle is turned off and the keys are removed. Open the hood and remove the clips or screws securing the headlight assembly; you may need to remove the grille for better access. Disconnect the electrical connector from the back of the headlight and carefully pull the assembly out. Install the new headlight housing by reversing the steps: connect the wiring, secure it in place, and reattach any parts you removed.