Exterior rearview mirrors have mirror base, a mirror body, and a lighting unit with a lighting means. A lighting unit can be a repeating direction indicator lamp or, for example, a lamp for illuminating the surroundings. In order to enable the lighting unit to be easily mounted while requiring little mounting space, the lighting unit is part of an add-on element, which is physically separate from the exterior rearview mirror. The lighting unit with the lighting means can be easily produced and mounted. No mounting space is required inside the exterior rearview mirror. The lighting unit can be easily accessed for mounting. The exterior rearview mirror is used in motor vehicles.