heplguy

It's almost certainly the 12V battery. Let us know what the dealer does to fix it so we can keep track of what works and what doesn't (if the issue returns). I haven't had any problems since they recharged my battery, but it's only been a week.

Just to update everyone on my issue. I took my car to the dealer today. As expected, the problem was low voltage on the 12V battery. They charged it up and now everything is working again. We're going to see if the battery can keep the charge before taking the next step. Thanks for everyone's contributions!

bdginmo, I now realize I chose my phrasing poorly. I live midway up a steep hill; that day I started at the top of the hill and was 100% charged when parking, based upon the completely full battery indicator. The next time I entered the car 2 days later (I'm the only driver), the state of charge was ~10% (estimated from the indicator), so it wasn't "drained completely". Perhaps my car experienced a similar issue to your Escape, since the first time I noticed the "System Off to Save Battery" was that morning when the HVB had also been largely depleted. Anyway, I hope you're right about the 12V battery!

I've been having a very similar issue as the OP on my 2 month old 2017 hybrid. I started noticing the "System Off to Save Battery" message a few weeks ago. As of yesterday, my radio doesn't work...I can't even select to audio panel on Sync 3. I just seems to ignore my selection. No other audio source or sound works, either--not even the beeping sound when you touch the screen! No bluetooth, no voice activation chime, nothing. I'm also seeing the "No GPS" message. About the same time that the "Save Battery" messages started appearing, my HV battery drained completely after being in the garage for 2 nights. At first I thought it was a fluke, or perhaps I was just imagining things. Now it's clear there's some underlying electrical drain issue with these cars. I'll take it to the dealer this week and report back. Reading this thread, I have a general sense of dread about the resolution of this issue.