Abstract: The blind spot alert apparatus provides a pair of identical sensors for fit to opposite rear quadrants of a vehicle. Each sensor senses a presence or lack thereof of an obstacle proximal to either rear quadrant of the vehicle. Sensors signal the driver via instrument panel chime and buzzer and also via the “WARNING” and “OK” indicia in each side of the instrument panel. Signaling occurs only with a turn signal initiation. Blind spot related accidents are thereby avoided.