If you hear a squealing sound while braking that is one warning sign that your brake pads need replacement. If hear a grinding noise, it’s likely the brake pads have been worn down completely.
It’s possible to look at brake pads too and identify wear and tear. Pads should be visible by looking through the spokes of the car’s wheel – the outside pad is pressed against a metal rotor.
There should be at least 3 mms of the pad visible. If you see anything less, get the brake pads inspected.
Pulling to one side
While driving, if the vehicle feels as if it’s pulling to one side or the other, then it’s also likely that the brake pads need to be changed.
If the brake pedal vibrates when you push your foot down on it, they could be warped due to heat.