A vehicle safety device has a cabin unit which includes a cabin unit housing holding a keypad, a speaker, a cpu, and a transmitter. The speaker provides an audio signal when a vehicle speed input reaches a preset low-speed, a preset medium speed, and at a preset high speed. A rear unit receives signals from the cabin unit, and the rear unit has a housing holding a seat belt light. The seat belt light is interconnected to a vehicle seat belt sensor. A registration light and a proof of insurance light is also mounted on the rear unit. The rear unit is mounted on the vehicle exterior, preferably on the rear license plate frame.