It is very difficult to overfill a gas tank. Most gas pumps can sense when a tank is getting full, and the supply of gas automatically stops.
I think this is actually the cabin filter. It can be replaced using the procedure here:
What year? Are the lights in the bumper or corners near the headlights? If they are corners, open the hood and remove the one screw securing it the pull the light housing straight towards the front of the vehicle. If they are in the bumper, remove the two screws that secure it. If it does not have screws, you have to reach your hand to the backside of the bumper and push in on the clips. If its sealed go up underneath between the ferring and the raidiator the bulb should be accessable turn it counter clockwise ITS NOT SEALED JUST TAKE THE SCREWS OUT