Abstract: A free-standing on-board safety device is disclosed. The free-standing on-board safety includes a base portion and a head portion coupled through a tapered body. The head portion is preferably substantially round and brightly colored. In use the free-standing on-board safety device is placed on front seat of the passenger vehicle in an up-right vertical position. In the up-right vertical position, the device is visible to a driver of the passenger vehicle and the head portion is visible to persons outside of the vehicle through one or more windows of the passenger vehicle. When placed in the up-right vertical position, the free-standing on-board safety device indicates the presence of a child, infant or pet in a back seat of the passenger vehicle.