Check brake pad wear and replace worn pads
Inspect rotors for glazing, grooves, or damage
Clean brake dust from pads, calipers, and rotors
Apply brake lubricant to caliper slide pins and contact points
Replace missing or worn anti-squeal shims
Reinstall pads with proper hardware clips
Tighten loose caliper bolts and bracket bolts
Bed in new pads and rotors properly
Replace contaminated pads if oil, grease, or fluid is present
Resurface or replace warped rotors
Use brake pads designed to reduce noise
Check for stuck caliper pistons and repair or replace calipers
Inspect suspension and wheel components for looseness
Have the brake system professionally inspected if noise continues