Automatic round view at startup: When the car engine starts, the system will activate the car monitor and all the cameras around one by one to check the view for 10 seconds, then turn off. Automatic rear view: When you pull the reverse gear (left/right rotation not triggered), the system will activate the monitor and rear view camera until the reverse gear, then switch to the view camera for 10 seconds, then turn off. Front view mode: The system will start with front view mode by default. Front view controlled by the switch (included). Press the control switch for 2 seconds, the car monitor and car view camera will work all the time, if no other trigger works. And then you can turn off the front view video by pressing the control switch again for 2 seconds. Side view mode: Press the control switch less than 1 second to enter side view mode. When you turn on the rotary switch, system will activate the monitor and side view camera (the left/right side view camera is controlled by the