A lighted exterior mirror assembly for a vehicle includes a housing that houses a reflectance element. A turn signal indicator unit is disposed at a portion of the housing and has an enclosure and a light-transmitting cover joined with the enclosure. The turn signal indicator unit includes a plurality of light emitting diodes. At least some light emitting diodes of the plurality of light emitting diodes, when individually operating at about 25 degrees C. at a forward voltage of at least about 2 volts and at a forward current of at least about 20 mA, may individually emit light with a luminous intensity of at least about 500 mcd. When the plurality of light emitting diodes is powered, the pattern of light emitted by the turn signal indicator unit may be principally directed away from the side of the vehicle at which the lighted exterior mirror assembly is attached.