The invention concerns a lighting module for motor vehicles, including at least one first row of first illumination units configured to produce a first exit beam, each first illumination unit including a first light source and a first optical element configured to produce a first unitary beam from light rays coming from the first light source, characterized in that the first optical element of each of the first illumination units is configured to produce: a first total internal reflection of the rays coming from the first light source so as to form a reflected beam of collimated rays; a second total internal reflection of the collimated rays so as to generate the first unitary beam.