What does the rectangle in the upper right corner mean when reversing a Buick Excelle?
2 Answers
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.
Last time I encountered a similar issue was when repairing many Buick reversing camera malfunctions. When reversing a Buick Excelle, a rectangle appearing in the upper right corner is usually the dynamic trajectory line or warning frame of the reversing assist system displayed on the screen. This feature is designed to help estimate parking positions and obstacle distances, but sometimes it may shift or display abnormally due to software updates, system bugs, or the camera lens being obscured by dirt. I recommend first checking the cleanliness of the rear camera lens—wipe it with a clean, soft cloth to avoid dust or water stains affecting the image. Then, go into the vehicle settings menu, find the reversing camera options, and try turning off or adjusting the trajectory line settings to see if the rectangle disappears. If the problem persists, it might be due to a loose sensor connection or a fault in the vehicle control module, requiring professional diagnostic tools for detection. For safety, don’t rely solely on the camera while reversing—combine it with rearview mirror checks to avoid accidents. Also, remember to have technicians inspect the entire system during regular maintenance to prevent minor issues from accumulating into major problems.
