Nio is a Chinese electric vehicle automaker. Automatic emergency steering (AES) is a system that swerves around objects when braking alone isn’t enough to avoid a collision. Nio’s ADAS constantly monitors the car’s surroundings to see if there is a safe path to swerve. The system doesn’t replace automatic emergency braking. Instead, it primarily works at higher speeds where AEB cannot avoid a crash. The system also honks the horn to warn other road users. Nio also honks the horn when normal AEB