So....put the 4R in 4H just as I do now and then to confirm operation....and no response! No light on dash. It would go into 4L but no power to the front wheels.

I dug through the manual and on-line but there is NO fuse labeled for the 4WD system anywhere.

Pulled and checked all fuse on drivers side, all good.

Checked all fuses under the hood and found #27 AM2 7.5A STARTER SYSTEM to be 'missing'. There was a 7.5A fuse in #28 Mayday Safety Connect, which my vehicle was/is not equipped.

Moved that fuse over to the #27 AM2 slot and the 4WD system was 100% active again.

I will put a fuse back in #28 tomorrow just to have it there, and as a spare. This fall I wired a dash cash and blew a fuse and wonder if I put it back in the wrong location. Usually I triple check things like that though. I was checking them all to see which one went.

Either case I could not find anything on-line for the fuse that controls the system so I thought I would post in case it helps someone else on here down the line.