OK I think my 2008 Suburban is playing games with me. For the last month the truck will start to chime and all error messages pop up on the dash. After this happens all the gauges show off. When I turn the truck off and open the door NOTHING will start. If I turn the truck off and leave the doors closed it will start up and drive but again all gauges show like the truck is still of.

I have had this at two diff Chevy dealers both for a week each time and they can not figure out what is wrong. Attached is a link of this issue taken with my iPhone.

If you guys have any idea what to do aside from drive it off a cliff please advise.

PCM/BCM is probably on the fritz.

Yea thats exactly what I said to GM at both dealerships.... They insist that there is nothing wrong with the truck.

This is 10 days in the shop now 5 for each occasion.

Is that voltage gauge still working, or does it just go limp when this happens, and doesnt reset to zero?

it could just be the pod, or like mentioned. if they wouldnt do anything you can go to a different dealer, or call gm customer service. i would make them do something, even if its calling their second level support.

Mike, this is very simular to a instrument cluster ic issue, the ic are now a stand alone computer and are built very cheaply, by cheaply I mean the solder connections are very small and weak, temperature changes can have a diverse affect on the connection integrity, when the truck starts to act up try tapping on the dash pad, not too hard but just enough to jar the connections, if there is a brief change in the symptom, this may lead to replacing the ic.

Check the grounds dealers often jump right in and look at the big stuff and forget to make sure of ground integrity.