VEHICULAR EXTERIOR REARVIEW MIRROR ASSEMBLY WITH BLIND SPOT INDICATOR

A vehicular exterior breakaway rearview mirror assembly includes a skull-cap mirror shell and a reflective element. With the mirror assembly mounted at an exterior side of a vehicle, the skull-cap mirror shell has an inboard wall that faces toward the exterior side of the vehicle. A blind spot indicator is disposed at an aperture established at the inboard wall of the skull-cap mirror shell. An illumination source of the blind spot indicator is activated to illuminate the blind spot indicator responsive to an electronic blind spot monitoring system of the vehicle detecting another vehicle that is approaching or overtaking the equipped vehicle. Illumination of the blind spot indicator by activation of the illumination source is readily viewable by the driver of the equipped vehicle and is not readily viewable by a driver of the detected other vehicle.