A ground illumination system for a vehicle includes an exterior rearview mirror assembly configured to attach at a side of a vehicle, with a ground illumination module disposed at the exterior rearview mirror assembly and having a light source operable to emit light. The ground illumination module includes a reconfigurable display element. The reconfigurable display element is operable to form an icon responsive to one of (i) a user selection of an icon for display and (ii) programming of the reconfigurable display element for an icon for display. When the light source is operated and with the exterior rearview mirror assembly attached at the side of the vehicle, light emitted by the light source passes through the reconfigurable display element and the ground illumination module projects the icon of the reconfigurable display element onto the ground area at the side of the equipped vehicle.