1. Squealing or squealing that turns to grinding

That high-pitched squeal is often a wear indicator telling you the pads are low. If it turns into a metallic grinding, the pads are gone and you're damaging the rotors, which makes the repair more expensive.

2. A soft or sinking pedal

If the pedal feels mushy or slowly sinks to the floor, you may have air or a leak in the system. That's a safety issue worth checking right away.

3. Vibration or pulsing

A shudder through the pedal or steering wheel when you brake usually means warped rotors. It rarely fixes itself.

4. Pulling to one side

If the car tugs left or right when you brake, a caliper or hose may be sticking. Uneven braking is dangerous in an emergency stop.

5. Longer stopping distances

If it takes more room to stop than it used to, don't wait. Worn pads, glazed rotors, or low fluid can all be the cause.

6. Warning light or burning smell

A brake warning light or a hot, burning smell after driving means stop and get it checked. A mobile mechanic can inspect and replace brakes in your driveway, often the same day, so you're not driving on a system you don't trust.