Green Zone Drive Mode maximizes the eco-friendliness of hybrid vehicles; This technology automatically switches to EV driving mode when entering a populated area or a place where air quality needs to be improved. The next-generation Green Zone Drive Mode, which the Hyundai Ioniq Hybrid model first houses and was introduced through the second-generation Kia Niro, uses various information such as navigation, traffic sign information through the front camera, and driver's driving pattern. In particular, the biggest feature of the Green Zone Drive Mode is that the Hybrid Control Unit (HCU) optimizes the engine and the motor to maximize the mileage using only electric power.