Part 2/9:
Traditionally, brake lights activated when the brake pedal was pressed. This simplicity worked well when the brake pedal was the only means for a driver to slow the vehicle. However, modern vehicles equipped with advanced driver assistance systems (ADAS) often utilize software to control braking, necessitating a change in how brake lights are activated.
Technologies such as radar-adaptive cruise control and automated emergency braking are now common, and with electric vehicles (EVs), features like one-pedal driving introduce yet another layer of complexity. Suddenly, the simple action of pressing a pedal becomes multifaceted, leaving many manufacturers and regulators scrambling to keep pace.