How do you replace Mazda 3 headlight assembly?

To replace the headlight assembly on a Mazda 3, first, disconnect the negative battery terminal to ensure safety. Remove any screws or bolts securing the headlight assembly, typically located at the top and side of the assembly. Gently pull the assembly forward and disconnect the wiring harness. Finally, install the new headlight assembly by reversing the steps, ensuring all connections are secure.