I just got my truck back from the dealer about an hour ago where it was serviced and I have not had time to tinker with it yet.
I am hoping I can gain some insight from you before I start turning wrenches so-to-speak.
Scenario:
ICP Failure, EGR Failure, Battery Failure (both) and subsequent re-flash of PCM.
The Banks 6-Gun was disconnected prior to the service, then reconnected afterwards.
Now, with the Banks 6-Gun connected it is having issues shifting (automatic) and goes into "Safe-mode" (don't ask me, got that term from the mechanic).
Apparently, with the Banks 6-Gun connected after the re-flashing of the PCM it would NOT go past 65MPH, was shifting erratically, slipping into neutral from 4th and was flashing the "Over Drive" signal on the dash. 
Is there something I need to do to get the Banks kit back on-line and operational other than just plugging it in.
It has been in the truck for about 18 months without a hiccup.
I have left it on setting #6, as it is right now.
For now, the Banks kit is disconnected and is operating fine (just weak relative to when it has the Banks kit operational).
Thanks guys, I always appreciate your help.
Cecil
FYI - After having the additional power from Banks no longer available..... ole girl seems like a "pig"