Abstract: The Speed-Orientation-for-Safety Lights System or (SOS Lights), designed to reduce rear-end motor vehicle crashes, is a velocity-contingent rear and interior colored-lights visual alert system which signals real-time information from a lead car to following drivers via a processor-memory-speedometer-brake configuration that shows a lead vehicle's: (1) actual and changing speeds; (2) degree of brake pressure when decelerating and (3) stationary status. The main alert device has a plurality of adjacent speed indicator lights with braking and stopped status elements. A processor memory is configured to store programming and speed and brake look-up tables associating speed ranges with activation of specific colored lights and braking speed with a brake pressure alert subsystem. The processor executes programming via the interconnectedness of the speedometer, accelerator, brake, brake pressure sensor and the main device.