I bought two 2018 GM vehicles this year. An Acadia in January and a Tahoe in March. SiriusXM is in both vehicles and works perfect with the only exception being that Bluesville comes in very sporadically in the Acadia. It comes in perfectly in the Tahoe. I’m thinking of calling siriusXM because I’m a Fox News person with the exception of I like listening to the Blues. I have had XM since 2002 and have never had reception problems of any kind, even in stormy weather, so maybe they can help me out. It is interesting that only one channel on one vehicle gets poor reception.
