If you hear a loud noise coming from the rear brakes, it usually means the brake pads or shoes are worn out, or there’s an issue with the brake hardware. The noise can be grinding, squealing, or clunking, and it should not be ignored. An inspection is needed to prevent further brake damage and ensure safe stopping performance.

What does it mean if loud noise is coming from the rear brakes?

Loud noises from the rear brakes often indicate that the brake pads or shoes have worn down to the metal, causing metal-on-metal contact. It may also be caused by seized brake components, loose hardware, or contaminated brake surfaces.

Common causes of loud rear brake noises

• Worn-out rear brake pads or shoes
• Scored or damaged brake rotors or drums
• Stuck or seized brake caliper or wheel cylinder
• Loose or broken brake hardware
• Rust, debris, or contamination on braking surfaces

Why do you need to fix this problem quickly?

Ignoring loud brake noises can cause severe rotor or drum damage, increase stopping distances, and lead to complete brake failure. It also makes the vehicle unsafe and may cause it to fail a WOF or safety inspection.

How do you know when to get it checked?

You should book an inspection if:

• You hear grinding, squealing, or clunking noises from the rear brakes
• The brake pedal feels weak, spongy, or vibrates
• The car pulls to one side when braking
• You notice reduced braking performance
• The brake warning light appears on the dashboard

What happens during an assessment?

A mechanic will:

1. Inspect rear brake pads, shoes, rotors, or drums for wear
2. Check brake calipers or wheel cylinders for seizing or leaks
3. Examine brake hardware and adjust as necessary
4. Clean or replace contaminated braking surfaces
5. Replace worn components and test the braking system

How much does it cost to fix?

Rear brake pad or shoe replacement typically costs $250–$500. If rotors or drums also need replacing, the repair may range from $400–$900+. Caliper or wheel cylinder replacement can add $300–$700+ depending on the vehicle.

Is it unsafe to drive with loud rear brake noises?

Yes. Loud noises from the brakes usually signal severe wear or damage that compromises braking performance. The vehicle should not be driven until the brakes are inspected and repaired.