There is an SSM out on the sat radio drop outs on 2016 trucks depending on build date.SSM 46016 - Effective Aug 19 2016
2016-2017 Expedition And Navigator Built On Or Before 08/12/2016 And 2016 F150 Built On Or Before 08/09/2016 - Sirius Satellite Radio - Audio Cuts Out/No Signal
Some 2016-2017 Expedition and Navigator vehicles built on or before 08/12/2016 and 2016 F150 vehicles built on or before 08/09/2016 equipped with Sirius satellite radio may exhibit an intermittent concern where the audio cuts out and the radio displays a No Signal message while driving in open sky conditions in certain locations in your area. This may be due to interference with cellular phone tower signals. If a vehicle displays this condition near cellular phone towers, replace the audio unit antenna with part number GL1Z-10E893-AC on Expedition/Navigator and HL3Z-10E893-AA for F150.
However, city drop out is not an uncommon thing as sat radio is a "line of sight" reception. If the sat is shielded by a large building or overpass, it may drop out....