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A couple weeks ago, I noticed that the PCM dumped all my personal settings, such as displays I enabled to be shown in the MFD. A couple days ago, I noticed that the "Phone" routine was inoperative; it said "Function Not Available." I took it to the dealer today. They said the problem wasn't something wrong with my PCM; it was caused by a change in Sirius' com signal that wasn't compatible with the PCM. They said it affected a lot of cars, and they were inundated with calls. PCNA had already composed a fix and the dealer loaded it into my PCM yesterday at no cost. The car now has PCM version 4.73.
 
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What was the version before?
 

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My PCM completely stopped working due to the XM bug. Dealer had to reflash it and its been solid since.
 
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