BYD Atto 3 - Cannot turn on air conditioning while reversing?

The first time I had a guest in my car, it was a very hot day and I was reversing out of the carpark. I noticed something as I was reversing - I couldn't change the air conditioning settings on the touch screen to turn it on!!!

Because it was the first time I had someone in my car, I was fully panicking. She immediately said: Wow, this car is a bit hot. I was a bit embarassed as I had been saying that I got a new car and how awesome it was, and here I was couldn't even turn on the aircon.

It turns out that while the car was on reverse, the only thing you can do on the touch screen is to look at the cameras around the car. However, the hardwired buttons used for turning on the airconditioning still works fine, and there is an "auto" button you can press to make it adjust the temperature automatically. All explained in the video :)