I'm currently having an issue with a 2020 Legacy beeping every 30 seconds while off. It only does this when it's in or around the garage. Removing the key well out of range doesn't seem to do anything.
I've cleared out my HomeLink mirror and disconnected my bluetooth. I took it in, but they could not replicate the problem. It seems to only do this while in my garage or outside of it.
Anyone ever heard of this or have any ideas on a fix?