The brake rotors are strong metal discs that connect to the hub of your wheels. When you press the brake pedal, the pads push against them to create friction that slows the car. While you are likely familiar with brake service that replaces the pads, the rotors can also wear down over time, creating unsafe driving conditions. Here are several indications that you should replace these components.

When Do You Need to Update Brake Rotors?

1. Vibrating Steering Wheel

The friction from the brake pads heats the rotors, and over time, the cycle of heating and cooling warps the metal. Once this occurs, the car may react differently when you press the brake pedal. The pads moving against the warped rotors create a vibrating, shuddering, or pulsing sensation that comes up through the steering wheel. When this happens, the vehicle can no longer brake safely. The pads lose their traction with the rotors as they turn, increasing your stopping distance. Scheduling prompt brake service helps ensure you are safe while driving.

2. Dashboard Light

The engine monitors the brakes through sensors in the system. When the sensors notice that your rotors are warping, they may trigger a warning light on your dashboard. This light is for your anti-lock brake system, and it usually appears as the letters “ABS” or has a circle with two semicircles to the right and left.

However, this light can also trigger due to other brake problems, so look for signs that indicate the rotors are at fault. For example, failing rotors increase the car's stopping distance, so you may need to brake earlier to stop at the right place. You may also hear a grinding or scraping sound because the rotors don't turn smoothly.

3. Visual Wear

How easy it is to see your rotors depends on the type of rims you have. Park with your wheels angled toward the car, then look at the rotor behind the rims. The disc should be completely flat and smooth across its surface. Any grooves, warping, or a blue tint to the metal indicates that you need a prompt replacement. The metal begins to turn blue when excessive heat damages it, which may occur after you drive under extreme conditions, such as hilly terrain or high temperatures. 

If you need new rotors, bring your vehicle to Mullanphy Tire & Automotive in Florissant, MO, for expert brake service. These ASE-certified mechanics provide a range of automotive services, from auto air conditioning repair to tire rotations. They are known for honesty, long-lasting solutions, and competitive prices. Visit the website for more information about their services, and call (314) 921-4961 to schedule an appointment.