Yellow Arc Line: Meaning ?

[Boot]

I think while driving, a fat yellow arc of ~ 60 degrees showed up on my screen offset from the driver rear corner of the car icon. It briefly went away and then returned during my drive. Nothing changed in driving that I could tell. I have not yet looked carefully at the exterior of the car.

A look through the user manual and a google search were not fruitful. Anybody know ?

We have seen the same multiple times and still can't figure why.

 

[Gasaraki]

The colored arcs are NORMAL. It represents detected objects around your car. Grey is far, Yellow is close, Red is very close.

Sometimes if it's dirty or has water on them ultrasonic sensors, the arcs might show up and disappear for no reason.