Brake Problem

[lilfee504]

When i park my car in reverse and hit the brakes i hear a loud humming or sqeaking sound. What is the problem because i get embarassed because they r so loud

[Redog]

Well is it more of a hum or a squeak? Each 1 is something different.

Squeak: low brake warning. Need new brakes.

Hum: Wheel hub is going