when should you replace brakes
How to Know if Brake Pads Need Replacement. A simple inspection will reveal if the brake pads need replacement. Remove the wheels and check the caliper where the brake pads are located. If the pads are less than 1/8 of an inch thick, then the pads are a sure candidate for replacement. Another way to tell if your brake pads need replacement is by listening to a metallic squeal every time you apply the brakes while driving. This noise is caused by the wear indicator built-in the brake pads that serve as a reminder the pads are near the end of their intended service life.