Like many others, I am having the same problem with my 2007 Tahoe battery but nobody seems to have identified a single cause or solution. Someone mentioned SW upgrades... is this the cause? Or is it a problem with faulty NAV head, etc.? My dealer cannot seem to figure it out and I have had to jump my battery at least 6 times in the past two years. Please Help!
-Steve

 

Welcome to the forum.

Have the dealer verify that the "battery run-down" software fix has been installed. If it has then you'll need to have them check current draw w/ the truck off.