I had contacted HUMMER about having one of their technical guys lurk around the forums to answer some of the more technical answers that we may have.

They just replied and told me that H2 owners should take their questions to the Service Manager at the selling dealership. If the question/request is too complex and research is needed, that service department can contact the Technical Assistance Center.

I am working on a few other options for us, but I obviously can not guarantee anything.

Do you really want to trust that the service manager is answering the question correctly? Ask it here and see what others have experienced!

At the very least we'll make a joke about it!