Deep sleep mode

This is a daily driver for us, so it is not an issue of idling.

Posted this update in the above thread link (same issue).
We have also received the same notification multiple times (daily) on our Ford app for our 2020 Exp Max XLT. Twice we have taken the car in to be checked. Both times I was told the "malfunction codes that were stored are for a bad battery" and given a new battery. This current visit, I asked if they would test the electrical load/demand on my car at the battery compared to another Exp to see if anything was differnt/higher. They said "yes, all electrical tests were done per Ford's work instructions. It had low battery codes stored in the main computer." We we received a second battery replacement at 28,500 miles (previous replacement only 9 months ago). I cannot help but feel this is tied to the shutdown and craftsmanship. If you hear anything, please share!

Same. The FordPass for our "new to us" 2020 is doing this every time we shut down. Upon opening the door to drive it, we sometimes get a SYNC screen giving a countdown to either start the car or go back into deep sleep. Did a 12V battery health check, and came back less than optimal. One other symptom is Auto Start/Stop will not engage (light stays grayed) and another thread says this is also battery related. I'm just going to live with it since these are nice to have, but not critical, features.

keep it on a charger or have your dealer test it, it maybe time for a new AGM - i had the same message.

I had this warning pop up before my battery died. Replaced the battery and haven't had an issue since.