You should make sure the headlamp switch is in the OFF position, lower the endgate or open the cargo doors, remove the 2 screws retaining the tail/turn signal lamp assembly to the body, rotate the tail/turn signal lamp assembly from the vehicle, disconnect the electrical connector from the assembly, identify the bulb in need of replacement and pull the bulb straight out by the tabs on the base of the bulb to remove the bulb.
By BobGM Specialist
01/11/2022