Auto Systems and Repair: Brake Pad Wear Sensors (Mechanical)

Symptoms of Wear or Failure

  • Screeching or scraping noise while driving; in some cases, the noise will stop when the brakes are applied

Related Repair Advice

  • Ignoring the noise from a brake warning sensor may result in damage to the brake rotor(s), and in extreme cases, the brake caliper(s)
  • Mechanical brake wear sensors are permanently attached to the brake pads
  • Not all replacement pads come with wear sensors; we recommend using replacement pads that do come with sensors