How to remove the serpentine belt on a 2007 Chevy Malibu

Depending on the engine in your car, it could look differently. Below is the routing on the 4-cylinder engine. The V6 routing is just below it with the red arrow pointing to the tensioner. There should be a square hole in the end of the tensioner right at the pulley which you can place the tool. Lever it so you can loosen the belt and remove it.

Here's for the v6:

And here's a video which might be of some assistance: https://youtu.be/XJD8mw0xISo