2012 with Service Hybrid System warning

Sorry for not updating.
It seems that was indeed the issue.
We looked no further into it because she’s fine without the remote start on it, especially since she was stranded for a short time with it already, a d wouldn’t want to repeat it.
I guess as happens on most sites, I am not much different than others who post issues then don’t come back to verify the issues.
Can has been great until the recent head gasket issue, which is now 500 miles post repair and doing well.
I need to update that thread in the near future as well.