How ironic that I'm just seeing this thread right now, and today, for the first time ever I saw this same screen on my 2021. I was at work, sitting in my truck, engine off, and listening to the radio for an extended time....after the radio/power went off after the 15 minutes, I just pushed the radio button to turn it on...did the latter more than once, then the screen came up. Hope my truck starts up at 6:30 tomorrow morning. 🤪

 

I had a similar issue. Only thing I can say is try turning the key to on, but not trying to start the truck for a second.
I believe, in my case, the key was not being recognized quickly enough, so the truck would not start.

 

I still have this truck and the problem disappeared about 4 years ago, right after a visit to dealer, who said they did nothing to it.

 

Good morning. Are you still experiencing this starting concern? If so, I would like to look into it on my end. Please send over a private message with your VIN and the name/location of your local Ford dealer.

 

I would like to see the resolution, if you find it. Thanks!

 

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The message on the screen is a software driven timer action, not actual low voltage indication.
It asks you to shut off power consumption long before the Battery goes low so you don't get stuck with a no crank condition due to a low battery unless there is a real fault present.
I find at times there is a delay in cranking when attempting to start the engine after a period of just using the Radio.
Appears to have some effect on AGAIN software timing before the starting circuit fully engages.
Also sometimes after cranking/starting there is a heavy Bang from the Starter. Again this seem a software time out action.
Leaving the ignition switch fully on for an extra Second may stop the Bang.
The Starter will still be automatically powered down so you cannot grind it against the flywheel, by design.
Good luck.