DIY, remove and change the fog lights on your Toyota Tundra, the model made between the years 2000 and 2005. This replacement will require a 10 mm socket with a ratchet and an extension. The whole process will probably take you less than 15 minutes.
The replacement can start after you lift up your vehicle with a jack. This is not a necessary step, you can still access the back of the fog light with the car on the ground, but it will make the whole process a lot easier. So, get under the car, behind the front bumper and remove the light bulb, by twisting its socket counterclockwise.
After you do it, you can work to undo the three nuts that secure the fog light, marked with red circles in the picture below. They can be removed using a 10 mm socket, with a ratchet and extension.
You will be able to pull out the entire assembly after you get rid of these nuts. The fog light has a plastic frame around it, that can also be detached by removing some screws. Do it, if needed, if not, you can just install the replacement part. Secure the new assembly into the front bumper and reconnect the light bulbs. This is all you have to do, if you plan to remove and replace the fog lights assemblies on Toyota Tundra, the model manufactured between the years 2000 and 2005.