A warning indicator system for a vehicle side-view mirror includes light sources disposed to emit light in patterns and/or colors visible through a partially light-reflective surface. One or more processors are operatively configured to actuate the light sources in predetermined sequences defining a stealth mode, a pursuit mode, and a traffic advisor mode. The partially light-reflective surface may be a light transmitting substrate having a coating of a reflective substance provided in a thickness allowing at least a partial transmission of light therethrough. The light sources may be printed light-emitting diodes (LEDs). Disposing the light sources in desired patterns to emit desired colors on actuation in a predetermined sequence allows configuring the side mirrors to emit visible light signals indicative of the stealth mode, a pursuit mode, and a traffic advisor mode.