brake warning light starts to flash and I can hear grinding

Hello, I'm Danny.

Here is the information you requested. Usually the brake warning light will come on for having a low brake fluid level in the brake master cylinder due to having worn brake pads. This is a tutorial showing what is involved on how to change front brake pads and brake rotors:

https://www.2carpros.com/articles/how-to-replace-front-brake-pads-and-rotors-fwd

I've attached picture steps below on how to change the front brake pads and rotors on your car including both the 4 and 2 piston braking system available on your car. Hope this helps and thanks for using 2CarPros.