Abstract: An automatic braking indicator according to one example embodiment includes a sensor for detecting a plurality of accelerations of a vehicle, a processor in communication with the sensor and a brake light switch in communication with the processor. The processor receives signals from the sensor corresponding to the plurality of accelerations of the vehicle, filters the signals from the sensor to remove signals from vehicle vibrations, compares a first signal corresponding to a first acceleration of the vehicle to a first set amount and sends a brake signal to the brake light switch to turn a brake light on if the first acceleration of the vehicle is less than the first set amount.