What to do if the aftermarket reversing camera has no trajectory lines?

[Nolan]

If the aftermarket reversing camera has no trajectory lines, it is because this reversing camera does not support dynamic trajectory. You can only replace it with a reversing camera that has dynamic trajectory lines to achieve this function. Green trajectory line: Indicates a normal safety line, meaning the distance between the obstacle and the rear of the car is relatively large, so you can reverse with confidence. Yellow trajectory line: Indicates a deceleration line, with a distance of 60cm from the rear of the car. You can continue to reverse, but at the same time, you need to slow down the reversing speed and constantly observe the distance from the obstacle. Red trajectory line: Indicates a warning line, with a distance of 30cm from the rear of the car. At this point, you should stop reversing, otherwise you may hit the obstacle behind.