Brake noise when stopping is one of the most common complaints drivers have. The type of noise tells you what is wrong and how urgent the repair is.
Squealing or Squeaking
A high-pitched squeal when you apply the brakes is usually the wear indicator. Most brake pads have a small metal tab that contacts the rotor when the pads are thin. This sound is intentional. It means the pads are getting low and need replacement soon. Squealing can also be caused by vibration between the pad and caliper. Anti-squeal shims or brake grease can fix this.
Grinding or Scraping
A grinding noise means the brake pads are completely worn. The metal backing plate is contacting the rotor directly. This damages the rotor and requires immediate replacement of both pads and rotors. Driving with grinding brakes is unsafe and costly. The longer you wait, the more damage is done.
Clicking or Thumping
A clicking sound when braking may mean a loose caliper or worn brake hardware. The caliper may be loose on its mounting bolts. The brake pads may be moving inside the caliper bracket. A thumping sound often indicates a warped rotor. The rotor surface is uneven, causing the pads to bounce as they contact it.
What to Do
If you hear squealing, inspect the pads soon and plan for replacement. If you hear grinding, stop driving and have the brakes serviced immediately. If the noise is from the rear, the same rules apply. Brake noise when stopping is your car telling you something needs attention.
