14 pages on and no official answer

I've never seen the bar turn orange, even as remaining battery gets to 2%.
I've only ever seen it (on two occasions now) when starting the car.
I've not noticed any regen issues when driving the car (I'm usually set at 3, and only have reduced regen when battery is at 100%, and I get a warning when starting a journey if battery is at 100%)
So far, I've always had green bars when restarting the car for the next journey.
I don't think the colour is weather related (orange bars appeared on "average" days)
Finally, here's my orange bar pic
View attachment 36547