Drain plug is easily accesible from the backside of the oil sump; I believe it's a 15mm nut. Please dont use an adjustable wrench.
Filter is mounted "upside-down" towards the front of the oil sump,...
There is a 3/8" square opening on the pulley end of the tensioner. You will need a 3/8" drive wrench, a handle extension (cheater pipe) and maybe a short (1") entension depending on your wrench....
It is located in a compartment behind the rear seat in the trunk. Open the rear hatch. Remove the carpet pad in the trunk. There is one pull handle as you look down for one compartment that contains...
There is a tensioner pulley on the engine that has a sole job of tightening the belt up. Pull on that tensioner either right or left which ever way loosens the belt, and then slip the old belt off....