Abstract: The present invention is a thermal detection device for a reversing vehicle. The thermal detection device for a reversing vehicle warns driver of any warm bodied obstruction such as a person or an animal. The present invention utilizes digital pryoelectric sensors as means to detect a warm bodied obstruction. The digital pryoelectric sensors are compact and accurate and are sensitive to a warm bodied object at a relatively far distance. The present invention geometrically positions the digital pryoelectric sensors so that the present invention can detect a warm bodied obstruction with almost a 180° field of vision behind the vehicle. The present invention notifies the driver of a warm bodied obstruction entering the vehicle's reverse path with both a visual and an aural warning.