A vehicle messaging system for efficiently messaging other vehicle drivers. The vehicle messaging system generally includes a transparent member attached to a surface of a window of a motorized vehicle, a message attached to the transparent member, a light unit attached to the motorized vehicle and a control unit in communication with the light unit and a turn signal controller of the motorized vehicle. The control unit is programmed to automatically activate the light unit after the turn signal controller transitions from having a turn signal activated to having a turn signal deactivated. The light unit illuminates the message when the light unit is activated so that the message is viewable by a person outside of the motorized vehicle.