The utility model relates to an automobile use warning device, more specifically the novel car with warning device that says so, warning device itself can give out light to highly can adjusting by automatic control of illumination can make distance very clear the seeing of driver far away, the fine emergence of avoiding the traffic accident, red emitting diode and blue emitting diode under unified use make good use of people's warning, the device has ascending lighting device, has strengthened the warning effect. The gum cover contacts with the control box. Fixed gusset, motor and reducing gear box all set up the inside at the control box. The bearing frame is installed in the inside of control box, and the one end of pivot is connected with the reducing gear box, and the bearing that the other end of pivot passed in the bearing frame is connected with the pneumatic cylinder. The lower extreme of connecting piece is connected with the pneumatic cylinder, and the upper end of connecting piece is connected with the fixed station, and blue emitting diode and red emitting diode all set up on the fixed station, and the lamp fixing is on the fixed station.