Note that 2018 and later Sequoia models and some 2018 and later Tundra models use LED
Headlights, which are not serviceable; if there is a problem with an LED headlight, the entire headlight assembly must be replaced. First, unplug the electrical connector from the headlight bulb holder for both low beam and high beam. Next, if equipped, pull the rubber watershield off the bulb assembly. Then, turn the bulb body counterclockwise and remove it from the housing. Finally, installation is the reverse of removal.