An illuminating glazing unit for vehicles includes a first transparent sheet with a first main face, a second main face, and a peripheral edge, a plurality of light-emitting diodes, each having an emitting face, and a light extraction element, which may be located on one of the main faces of the first sheet, wherein the first sheet is pierced with a through hole delimited by an internal edge, and wherein one or more of the light-emitting diodes are housed in the through hole, with their emitting faces turned toward the internal edge.