Abstract: A visual brake wear indicator gauge for a vehicle's disc brake system. A mounting bracket is fixed to the existing brake's caliper with a hollow housing extending from the bracket. The visual gauge has an indicator bar with straight length and a right angled indicator foot on one end that contacts an inside disc pad. This indicator bar extends through and within the gauge housing and is normally biased by a housing spring to contact the brake's disc pad. Two different adjacent visual color coded segments on the bar indicate the contacted disc pad are properly operating, when both are color segments are displayed to one side of the housing, or that the system needs repair if only one color coded segment is so displayed. The gauge bar indicates wear to either the vehicle's disc pads or the associated rotor of the vehicle's braking system.