Bluetooth enable your onstar
#27
Has the car gone to the dealer at all during that time? It's standard operating procedure when they hook up to the car to do an update to the ECM/BCM OS as updates come out. My BCM was reflashed/updated by the dealer on my '09 the last time I was in.
#29
#30
Ah, then sure, it's entirely likely. My Chevy dealer out in Washington was outstanding. I'd bring them the car for an oil change once a month and without asking I'd get it back with all kinds of various pieces and parts replaced under recall or warrantee; tires rotated or whatever it might have needed. I never had to ask, they were more meticulous with my car than I am, and just took care of everything. Would not surprise me at all that they would have done an update to the radio at some point.
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