Abstract: A reflector device for providing the operator of a vehicle with a tailgate such as a pickup truck or a station wagon, convenient visual feedback as to the state of alignment of two complementary trailer hitch components (a first component mounted to the rear of the vehicle and a second component complementary to the first component mounted to the front of the trailer to be towed). The device has a mirror with its optical axis bisecting the angle formed by the vehicle operator's line of sight to the mirror and the optical path from the first trailer hitch component to the mirror. The mirror is pivotally mounted to the tailgate of the vehicle by a mounting bracket having a downwardly facing opening for receiving the top edge of the tailgate of the vehicle.