Brake light, reverse lights and turn signals are not working?

Have you checked the fuses? That is the first place I would start, here is a guide to help:

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

I have seen the hazard switch cause problem, I would cycle it about 10 times to see if anything changes. This can clean the contacts inside the switch. Here are the wiring diagrams so you can see how the systems work. Check the fuses with the key on. Check out the images (below). Please upload pictures or videos in your response of any problems so we can see what to help you with.