What does the rectangle in the upper right corner mean when reversing a Buick Excelle?

[DiFrank]

This indicates that the page can be switched to the next one by rotating the turn signal stalk knob, which is a composite page feature and not a fault warning. Below are precautions for reversing: 1. Plan the route: Before reversing, check the rear situation, plan the reversing route, and ensure the front of the car won't hit any obstacles. 2. Operation skills: If the rear of the car needs to move to the right rear, turn the steering wheel to the right. Conversely, turn it to the left. 3. Observe the rearview mirrors: While reversing, don't just look at the rear. Ensure safety and occasionally check the left and right rearview mirrors to note the distance between obstacles and the car body, adjusting the steering wheel accordingly to correct the car's position. 4. Throttle control: Try not to accelerate while reversing, and control the speed to avoid going too fast.