Your brakes need to be adjusted and inspected at least as often as stated in your vehicle owner's maintenance schedule. Not only does this keep your warranty valid, it makes common sense for the sake of safety. Brakes are made of moving parts that rub together, including a hose and many different fluids. It is an entire system that works on its own, deriving its power from the engine. This is a complex system, and needs the attention of a qualified, trained technician. Never allow any person who is not a professional to inspect or adjust your brakes.