Yeah I hear ya if it does it on the way out of the parking lot for lunch I will hit the onstar and try and get a code.
I wonder with it being intermittent if the TCCM is on its way out...like I said this am no lights all functioning well then aftr the store stop back on and no buttons worked.
I am going to get the cde if possible and see if it points to the TCCM if it does I will call the dealer and see if they will order the new module PN 89059551 with the onstar code perhaps they will which will at least save me the return trip down there....
I might get under the truck at lunch and unplus it and reconnect it and check it for moisture or possible a loose connection....not getting my hopes up but its worth a shot...
thnx M
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