disclosed is a vehicular communication method and device that displays a message when a vehicle light source is energized , sending the message to nearby motorists . the device increases good - will between drivers or alternatively provides a directed message to other drivers . a vehicle light , such as a rear brake light , turn signal or emergency vehicle light includes a housing having an outer translucent panel . the panel includes an etched or overlaid message such that a message is visualized when the internal light is energized . the message is readily visualized without compromising the luminosity of the lamp or the amount of light required under state and federal vehicle regulations . an embodiment includes a message that is adhered over an existing vehicle light housing using an adhesive film , while another embodiment contemplates the outer panel including the message in its construction .