This sign represents the reversing radar of the car. Press this button and the reversing radar will work. If this button is turned off, the reversing radar will not work. The reversing radar is something that many cars have. The reversing radar is a driving aid. The reversing radar can help the driver reverse.
Vehicles equipped with reversing radar have probes on the rear bumper. When reversing, these probes can emit sound waves, which will be reflected back when encountering obstacles.
The radar can calculate the distance of obstacles according to the time when the sound wave is reflected back, so that the driver can be reminded of the distance of obstacles behind the vehicle by beeping.
The reversing radar is a very basic parking assistant system. Many cars not only have reversing radar, but also have reversing image.
A car equipped with a reversing image has a camera at the rear. When the car is put into reverse gear, this camera will work. This camera can display the image behind the car on the central control screen, so that the driver can judge the distance between the car and the obstacles behind.
Some luxury cars are even equipped with an automatic parking system. A car equipped with an automatic parking system can automatically drive in after detecting a parking space. At this time, the driver does not need to control the accelerator, brake, or steering wheel. Instead, he just needs to switch gears.
The automatic parking system greatly improves the convenience and experience of driving.