New member here. Hi. New 2018 Explorer in February with no issues - then intermittent, often lengthy, satellite reception failures have been occurring since July. Found this thread via a google search to find out I'm not alone with this. Thanks for the forum.
Took to dealer and described the symptoms; they called pretty quick today with the SSM 47499 info. So I'm in the system as having the problem. Dealer says there's no mechanism to notify me when there's a disposition, so I'll check with them periodically as well as follow this thread. They also said a firmware push might solve it once the engineers figure out the issue, so it might just clear up without another dealer visit.
Kudos to the dealer for not dismissing my issue as it apparently worked fine while they had it.
I had prepared a brief YouTube video showing the problem in case they didn't see the trouble. Didn't need it so I'll paste the link below for the amusement of the forum:
2018 Explorer Sirius Satellite Acquiring Signal problem