Abstract: A novel auxiliary taillight array for attachment to strategic locations on towed, or heavy hauling vehicles comprise a series of aligned, illuminated geometric configurations designed to substitute for a vehicle's permanently mounted inoperable, or obscured identical configurations, thereby enhancing the visibility of vehicles of the second division during hours of darkness or adverse atmospheric conditions, and to readily identify such vehicles engaged in hazardous operations. The arrangement of lighting configurations will restore dimensional perception, and photometric output to vehicle combinations in which the rearward vehicle obstructs the tail light assembly of the forward vehicle. This auxiliary taillight array lighting unit includes peripheral lighting components on the front rear and sides of its housing, a central array of identification lights, marker lights, and flashing or oscillating amber-colored lights.