Periodic brake inspection is something that should be done to prevent surprises from occurring. Here we an example of rotors. These are the actual friction material of brake pads. This is a rotor that is worn and also a case of something that has gone way too far.
We can see here the shiny outside is an indication that things have gotten, as they say, metal to metal. This is a brake pad that is about 75% worn. This one, all of the friction material is completely gone and we’re actually down to the steel backer. So what’s happened here is that this steel backer has been actually pressing right up against the steel of the rotor itself. So how do you know where things are gone? Do you tell if things are getting close?
There are many different ways that you can tell some brake pads contain a warning tab. This warning tab here is designed to scrape against the rotor. When things start getting close, it will actually make a squealing noise. Many brake pads are not equipped with these, and the only way to tell if your brakes are getting close to going is through an actual inspection.