Shift your gear to ReverseThe mirror monitor will detect the video signal from the camera automatically and will display the camera’s image of the rear of the vehicle. Related ArticlesCool features in the Hyundai IONIQ ElectricCool features in the Hyundai IONIQ 5Useful features in the Hyundai IONIQ HybridHow do I use the rear mirror reverse camera for the BMW 5 Series?Cool features in the Polestar 2