Replaced my serpentine belt today. No particular reason other than it has over 70k on it and the belt itself is cheap and easy to replace. All you need is a 16mm socket wrench normal sized, deep sockets are too long for the area. This video does a great job explaining what to do: https://www.youtube.com/watch?v=0dfeX8_PWts Should take just a few minutes. You will want the engine cooled as your arm will bump up against hot pieces. Good first thing in the morning activity.
Serpentine belt part#: 06l903137A