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About 5/2020 SiriusXM free weekend download affected many PCM units requiring reset. Mine included. The reset fixed the continuous rebooting but left my location corrupted- locates me about 150 miles away and the compass is off 180 degrees. 

SiriusXM seemed to admit to causing the problem as they had me take the car back to the dealer so that they could communicate directly with the technician. There may have been a fix. Told to wait and see if held for 48 hours. Reverted back to corrupted state by the time I drove off a few hours later. 

Worst case? They tried to surreptitiously tie into my location for ad tracking. Fix would be to initialize the system. Then do updates. 

Any ideas? Told to buy a new PCM for $4000 USD.  Prefer not to do that. 


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