TOYOTA HILUX 2017 MODEL, BLACK, 4*4, 2.8L Diesel Turbo 4 Cylinder, DAC- Downhill Assist Control.” It's a special safety system that helps vehicles go downhill in a safer, more controlled way. It accomplishes this by applying the brakes to limit the speed at which your vehicle descends. ABS- Anti-lock braking systems help you steer in emergencies.