Left rear power window not working

There is not a seperate fuse for each window just the system. It sounds more like the window motor, main switch, window module or door switch has gone out. You will need to test for power at the door switch to determine which is the problem.

Here is a guide that will show you how to test.

https://www.2carpros.com/articles/electric-window-repair

Here are some diagrams so you can see what I am talking about (below)

You will need this guide to do the tests

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

See where you loose power and get back to me.

, Ken