If you have any of the following signs of wear, you should see us for our Brake Special. Signs of wear - Low or spongy pedal, which can mean there is air in the hydraulic system. A red brake-warning light that could indicate an imbalance in the system. Continuous squeals and grinding sounds-may mean its time for new pads or shoes. These are just a few signs that can tell us if you need new brakes. These conditions can cause longer stopping distances and difficulty stopping in emergency situations. We will replace front or rear brake pads or shoes with Genuine GM parts.