This is probably the most important car maintenance as the most important safety feature on your car. You should at least have an annual inspection of your braking system to avoid problems. Every six months is even better. If you hear or feel clicking, squeaky or grinding noises when you apply your brakes, you may have a problem. You may simply need new brake pads or even brake fluid. But make sure you get it checked at the first sign of trouble. Also, if you have a brake light that is illuminated on your dash, get the car looked at as soon as possible.