CHANGE: Car Safety’s Getting an Upgrade—Here’s What’s Coming by 2029.. “Via FMVSS No. 127, the National Highway Traffic Safety Administration mandates new vehicles be capable of detecting other vehicles, objects, and pedestrians and then providing automatic emergency braking to either prevent hitting them or greatly reduce the damage or injury if avoidance is impossible. These features must be phased in on all new light vehicles by September 1, 2029.”