Get it checked soon
Why do my brakes grind?
A grinding sound when you brake most often means the brake pads have worn down to metal, so metal is now contacting the rotor. It can also be a stone caught in the brakes or surface rust after the car has sat. Because brakes are a safety system, this is one worth handling promptly.
Most likely causes
Ranked from most to least common.
- 1Brake pads worn down to the metal backing (the classic cause)
- 2A stone or piece of debris caught between the pad and rotor
- 3Worn or scored rotors
- 4Light surface rust on the rotors after the car sat in the damp, which usually clears after a few stops
- 5A stuck caliper causing constant contact
What you can check
Safe, simple things to look at yourself.
- Note whether the grind happens only when braking or all the time
- Listen for a squeal that turned into a grind over recent weeks (a wear indicator doing its job)
- Feel for a pulsing or vibration through the pedal
- Check whether it clears after a few gentle stops (often just rust)
What to do next
If the grinding is constant when braking, have the brakes inspected soon, since worn pads can start to affect the rotors. Understanding what a brake job involves helps you plan the visit.
More symptoms
Other things drivers ask about
Sources & further reading
- NHTSA — Vehicle safety & recalls — check whether a symptom traces to an open recall, free
- FTC — Auto repair basics — your consumer rights at the repair shop
- AAA — Car repair and maintenance costs — independent guidance on what repairs should cost
Cost ranges and guidance reviewed July 2026.
Keep exploring
What the fix typically costs
Grinding Noise When Braking FAQ
Common questions
Why do my brakes grind?
A grinding sound when you brake most often means the brake pads have worn down to metal, so metal is now contacting the rotor. It can also be a stone caught in the brakes or surface rust after the car has sat. Because brakes are a safety system, this is one worth handling promptly.What is the most common cause?
The single most common cause is brake pads worn down to the metal backing (the classic cause). Also worth ruling out: a stone or piece of debris caught between the pad and rotor, and worn or scored rotors. If the grinding is constant when braking, have the brakes inspected soon, since worn pads can start to affect the rotors. Understanding what a brake job involves helps you plan the visit.What can I check myself first?
Start with the safe checks: note whether the grind happens only when braking or all the time. Then listen for a squeal that turned into a grind over recent weeks (a wear indicator doing its job). Anything beyond that is worth leaving to a shop.
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