I received the update about a week ago but it failed to install. After that the check for updated was grayed out. Same happened a month ago on previous update. I waited a few days but it was still grayed out.
I had a thought. I have not been driving it a lot. Short trips to town a back. I put it on a battery tender. It took all night for tender to go green. Check for updates wasn’t grayed out an update installed.
Since you are told to shutdown after update starts it must check on battery charge to be able to complete the update. On the trips to town I didn’t notice any slow cranking.