Brake Lights not working

I would think to check the fuses first 31 and 29 and then move onto the brake light switch, Here are a couple of guides and diagrams (below) to help you do some testing and get the problem fixed.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

and

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

Please let us know what happens so it will help others.

Cheers, Ken