Brake Wear Sensors wear down with the pads and illuminate the brake pad wear indicator light/warning.
Built tough;Tested at 500 degrees fahrenheit to ensure reliability;Produced to meet or exceed the strictest OEM standards;Ready to install - No modifications necessary;California Residents: WARNING PowerStop has a reputation for precision and adherence to the strictest OEM standards, which extends to our Brake Wear Sensors. Designed to meet the same form, fit, and function as the original OEM part. Power Stop Electronic Brake Wear Sensor - SW-1218 The PowerStop Brake Wear Sensors continue to work after thousands of miles, providing the safety and performance drivers count on. When that happens, it is time to replace the brake pads as well as the sensors.