The incidence of squeaking brakes is quite common to hear in most of the roads. If you have been wondering on why these squeaking brakes may make so much noise, it is important to understand that this is a feature that is incorporated by brakes manufacturers to notify you of when the vehicle requires a change of breaks. What the bakes manufacturers have done to cause the high pitched squeaking brake is that in the build of a brake pad, there is a metallic blade that is incorporated there that will notify you of when you are due for a change of brakes.