Click on [Reverse line calibration] to enter the settings:
Park the car in the middle of the parking space.
You can choose whether to turn the reverse line feature off or on.
Manually drag the left, adjust the position of the reversing assist line up, left
and right, so that the reverse assist line is horizontal to the parking line on the left of
the ground.
Drag the [ ] at the bottom to adjust the position of the reverse line to the left
and right.
After adjusting the reversing line, click [confirm] to save the calibration.