Will this fit my model if it came from the factory without fog lights?

This is a direct replacement only — your car needs to have had the fog light housing from the factory. If your model came without them, you'll need a complete housing kit, not just the light itself.

Do I need to do anything before installing this?

Disconnect power at the battery first. The assembly is ready to install — just remove the old unit and plug the new one in. No wiring or modification required.

What if the light doesn't turn on after I install it?

Check that the connector is fully seated and the battery is reconnected. If the light still doesn't work, the issue is likely in your vehicle's wiring or switch — the assembly itself is brand new and tested.