Brake Repair

Usually the wear indicator, a small metal tab built into the pad that contacts the rotor once the friction material wears down. The squeal is deliberate. It can also come from glazed pads, dust or a stone caught in the assembly, or hardware needing lubrication. Either way it is worth an inspection, because the difference between a pad job and a pad plus rotor job is often a few weeks.

Get it looked at now. Grinding usually means the friction material is gone and metal is contacting the rotor or drum, which cuts grooves into the surface and lengthens stopping distance while it happens. Driving on it turns a pad replacement into pads plus rotors, and sometimes a caliper too.

A soft pedal points to air or moisture in the hydraulic system, a fluid leak, a failing master cylinder, or a flexible hose swelling under pressure. Those are hydraulic faults rather than wear items, and all of them affect how the vehicle stops. This is the symptom to act on soonest.

Follow the interval in your owner’s manual and have the fluid tested between times. Because the fluid absorbs moisture from the air whether you drive or not, age matters as much as mileage. Testing tells you where it actually stands.

No. A rotor can be machined if it will still exceed the manufacturer minimum thickness after cutting, which is often the case at a first pad replacement. If it measures below minimum, is cracked, or has hard spots, it gets replaced, because a thin rotor sheds heat poorly and warps again quickly. We measure rather than assume.

Pulsation through the pedal or wheel usually comes from uneven rotor thickness, commonly described as a warped rotor. Heat cycling and uneven pad deposits cause it. Machining or replacing the rotor fixes the vibration; leaving it wears the pads unevenly and gets worse.

The anti-lock system has disabled itself and stored a fault, commonly a dirty or failed wheel speed sensor, damaged wiring, or a hydraulic module problem. Your normal brakes still work, but anti-lock assistance will not be there in a panic stop or on a loose surface. It is a scan-tool diagnosis, not a guess.

There is no honest mileage answer, because pad life depends on driving style, vehicle weight, terrain, and how much stop-and-go you do. Two identical cars can differ by double. That is why pad thickness gets measured at every inspection instead of predicted from a chart.