how to replace a low beam head light

need to replace a low beam head light, don't know what i need to remove to replace it/ it is a 2005 trailblazer ls

L/s is easy just reach in behind the lamp housing, under the hood, remove the rubber cap to access the bulb, r/s remove the air intake duct to access the lamp.

Even easier than that. There are two flat horizontal tabs just above and behind each assembly near the upper radiator support crossmember. Pull up on those tabs to unlock the headlight assembly from the frame. It will be free to pull away from the truck...may even fall into your hand so be wary. Unplug the wires from the lamps to separate completely and twist to remove the lamps from the sockets. Install new lamps and reverse procedure to reinstall.

you have to remove the fron grille first to pull out the headlamp assy. 5 min . job.