If you remain asleep, it will do stuff automatically. If you are still in control, Automatic Emergency Braking releases brakes, or stops applying the brakes, when:
You turn the steering wheel sharply. You press and release the brake pedal while Automatic Emergency Braking is applying the brakes. You accelerate hard while Automatic Emergency Braking is applying the brakes. The vehicle, motorcycle, bicycle, or pedestrian is no longer detected ahead. Automatic Emergency Braking is always enabled when you start. To disable it for your current drive, touch Controls > Autopilot > Automatic Emergency Braking. Even if you disable Automatic Emergency Braking, your vehicle may still apply the brakes after detecting an initial collision to reduce further impact (see Multi-Collision Braking).