Legacy GT LTD Sedan AWD F4-2.5L DOHC (1998)
Brake Pad Wear Sensor: Description and Operation
A wear indicator is provided on the inner disc brake pads. When the pad wears down to 1.5 mm (0.059 inch) the tip of the wear indicator comes
into contact with the disc rotor, and makes a squeaking sound as the wheel rotates. This indicates that the pad needs to be replaced.