Installation procedure:
A. Consult a vehicle manual to find out which component needs to be removed to get access to the headlight assembly.
B. Undo the screws, clips, or retainer springs that hold the headlight in place.
C. Disconnect the wiring from the assembly. After the wiring is removed, you can now detach the headlight from the vehicle to replace it with a new one.
D. Fix the new headlight into place and make sure that the screws, clips, or retainer springs used are sealed.
E. Reconnect the wiring that was unplugged from the assembly.
F. Test the new assembly.