THERE ARE 5 MAIN WARNING SIGNS THAT INDICATE YOUR BRAKES ARE WORN or DAMAGED :
1 - A HIGH PITCHED or GRINDING NOISE - when you apply the brakes. (some pads have warning indicators that make this sound to alert the driver when the friction material is low.)
2 - AN UNUSUAL VIBRATION DURING BRAKING
(this normally indicates a warped brake disc which has the potential to lead to a loss in brake performance.)
3 - THE BRAKE PEDAL FEELS SOFTER TO PRESS THAN USUAL.
(air or moisture may have contaminated the brake fluid causing extended pedal travel)
4 - THE DISTANCE IT TAKES FOR THE CAR TO SLOW DOWN or COME TO A COMPLETE STOP DURING BRAKING HAS INCREASED. (worn brake pads & discs can result in an increase stopping distance during braking)
5 - THE VEHICLE PULLS TO ONE SIDE WHEN BRAKING.
(sticking calipers can cause the vehicle to pull to one side & lead to a reduction in braking performance.)