The importance of your braking system is obviously a no brainer but do you understand exactly how your brakes work? It's a good idea to understand the different moving parts that make up your brake system. When you press your brake pedal, the brake pads create friction; in turn, the brake rotor disperses heat throughout the vehicle to keep the brakes themselves from overheating. Both are essential to the proper functioning of your braking system and might need replacing at different times. So next time your Nissan technician recommends replacement rotors or brake pads, you may want to consider the strain you are putting on your vehicle is you choose to wait.