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Any help anyone could provide would be huge....the dealer is basically saying the truck is not worth fixing, I beg to differ but have no idea what could be causing this issue.

At this point I am at my wits end with this thing. At this point I am starting to think that this the only thing that could be causing this problem is the Transmission Control Module? I know it is inside the transmission on my 2007, is there any way to check it without taking the transmission...

Update: Yesterday I had the battery and alternator load tested, they both are fine. I checked all the vehicle grounds, and cleaned up the corroded ones. I also replaced the negative battery cable. I also followed the steps recommended in GM Technical Bulletin SB-10043829-6448 considering my...

No problem...I will keep you posted.

Thanks for the heads up....I will get them tested.

I have checked both and they both seem ok. The battery is reading 12.5V with the engine off and 13.5V with the engine running.

Last week I went to start my 07 ESV (it had been sitting for about a week and half) and the battery was dead. I boosted the truck and approximately 10-15mins into driving it the Traction Control, Stabilitrak, check engine and ABS lights started going off, the door locks would lock and unlock...