Call me crazy. I got a new replacement module from an Ohio dealer on eBay for about $230 and installed it today. It was a bigger pain getting the old one out than putting the new one in. I had to remove the brake pedal assembly. Anyway, I got the new one in and it works, for now at least. The hardware and software dates on the new module are a year newer than the old one so I'm hoping they have the bugs worked out and I won't be going through this again any time soon.
So far the new module works flawlessly. Good thing too because my present situation has me using it a lot more frequently. It is very convenient and makes taking calls while driving a whole lot safer.