It seems my batteries are just fine as well. I made 8 tips to the garage over the course of the day to check the trucks behavior and measure the battery voltage. First 4 trips the voltage before openning the door voltages were 12.8 to 13.0 volts. The trucks behavior was just as you would expect. Responded to the key, went into preheat, then started immediately. I shut it down right away and measured the voltages again. All were 12.8 volts or higher. The 5th time there was 12.8 volts before openning the door. When I got in everything seemed as usual except the tach and speedo surrounds weren't lit. I had no response to the start button. No response to touching the FOB to it either. So I open the door and get out. Close the door and get 2 flashes from the emergency flashers, all the lights come on, the whole dash and 12 inch light up and the truck goes into preheat. While I'm standing outside with the FOB in my pocket. It did not go into start after the preheat. So I got back in and when I closed the door a message came up saying vehicle was not in park. (shifter was not moved all day) I shut it off the normal way with the switch. I immediately pushed the start switch again and get nothing. So I get out again and when I close the door it starts the the whole operation over again. This time when I get back in it didn't say it was'not in park so I started it. After turning the engine off it seemed to respond to the key and start button just fine. The last three checks were just like the first four. This behavior is not what I had yesterday but is just as baffling. My only conclusion after this is that it's not the battery and something else is pretty wacked out. Of course it will be fine when I go in for service. Intermittent gremlins are the worst kind.