I have been poking around some GM forums trying to find an answer and they are difficult to search and find answers, so I thought, lets ask my friends.
The Bluetooth connection in my 2009 Silverado worked great with my iphone 4S. With the same phone connected in the 2012 Silverado, people tell me the call sounds tinny and hollow; like I am sitting in a barrel. I have tried it with Siri enabled and disabled - makes no difference. I have disconnected and reconnected with no change.
Does anyone have any ideas?
I knew I should have sprung the extra bucks for a Ford.