If your vehicle is showing brake pad wear warning message on the dashboard, here are the most likely causes and the parts you'll need to fix each one.
The brake pads have reached their minimum safe thickness, causing the electronic wear sensor to contact the rotor and trigger the dashboard warning.
Brake pad wear sensors are typically one-time-use components. If the sensor was not replaced during a recent brake job or was damaged during installation, the warning light will stay on.
The wiring harness or connector for the brake pad wear sensor can become chafed by suspension components or road debris, breaking the circuit and causing a false warning.
In rare cases, the module that monitors the brake wear circuit malfunctions, falsely triggering the warning message even when the pads and sensors are perfectly fine.