Vehicle rear-view side mirror with multifunctional signal comprising: - a housing adapted to be attached to an outer surface of said vehicle, with a first opening where at least one mirror glass is located; - a second opening including at least an aperture facing to a front part of said vehicle with respect to the driving direction, and also open towards a rear part of said vehicle, said second opening accommodating an emitter assembly for emitting at least luminous signals, said second opening being provided with a cover including at least one translucent or transparent or in part colorless tinted surface, surface configured to permit the passage of light towards said front part allowing a light signal to be projected therethrough at least against a plane perpendicular to driving axis to a front projection, and towards said rear part allowing a light signal to be projected therethrough at least against a plane perpendicular to driving axis to a rear projection and/or towards the ground in a lateral zone of the rear-view mirror, said at least one translucent or transparent surface is comprised in and area between upper and lower horizontal tangents delimiting superior and inferior part of said housing, - said emitter assembly being adapted to produce on the basis of a single emitter at least one turn-signal indicator function, and wherein said emitter assembly is adapted to carry out through the use of one or more non intermittent light emitter assemblies, at least one of the functions included in the following group: end-outline marker light, position light, frontal and lateral illumination complementing the function carried out by the vehicle's front lights, and fog lights. characterized in that said emitter assembly is adapted to produce on the basis of a single emitter an additional signal and allowing to use and/or combine various signals of different types or multiple functions by the application of different commands, different on/off times of light sources, and is adapted to combine different internal arrangements with intercalated emitter assemblies, of the same or different type, form and color, wherein said at least one translucent or transparent surface is placed at the rear of said mirror, and a surface of said cover that allows passage of light rear projection being open towards the rear of said vehicle, and being located on a side end area of the housing leading away from the outer surface of the vehicle body, - a housing adapted to be attached to an outer surface of said vehicle, with a first opening where at least one mirror glass is located; - a second opening including at least an aperture facing to a front part of said vehicle with respect to the driving direction, and also open towards a rear part of said vehicle, said second opening accommodating an emitter assembly for emitting at least luminous signals, said second opening being provided with a cover including at least one translucent or transparent or in part colorless tinted surface, surface configured to permit the passage of light towards said front part allowing a light signal to be projected therethrough at least against a plane perpendicular to driving axis to a front projection, and towards said rear part allowing a light signal to be projected therethrough at least against a plane perpendicular to driving axis to a rear projection and/or towards the ground in a lateral zone of the rear-view mirror, - said emitter assembly being adapted to produce on the basis of a single emitter at least one turn-signal indicator function, and