Do your brakes have to do with your car making a grinding noise when you use them?

probably, if the pads are worn, or the rotors \ drums are scarred, there will be a grinding noise, plus you should be able to feel it through the brake pedal. most modern brake systems have quealers on the pads to tell you when they are getting worn and should be replaced. If you have a disc brake system, you should be able to inspect the rotors quite easily. Look for gouges in the surface of the rotor. If they are badly gouged, they should be turned or replaced.