A light module for a lighting apparatus of a vehicle having a reflector body, a light generating unit having at least one light source, a carrier on which the light generating unit is arranged. The light generating unit is replaceably arranged on the light module. The reflector body has at least one reference surface and the light generating unit has at least one locating surface. The locating surface can be brought to rest against the reference surface during insertion of the light generating unit into the light module in order to create a precisely positioned arrangement of the light generating unit on the reflector body.