Biff,
Don't quit on these pricks. Be a really big pain in their ass and eventually they'll twitch.
You have to be prepared to play hard ball even to the point of picketting the dealership or parading your H2 on a flatdeck (if they haven't fixed it). These guys will move fast if there is any possibility their business could get hurt.
UNA has a great ideal, but a 1-2 day stint on the paper or 5 minutes on TV is recoverable and forgettable in a week.
Most of us here are H2 diehards and will defend it to it's end. But there are a few exceptions. It's clear GM is not interested in your problems now that they have your money.
Professional Grade My Ass. GM is giving Hummer a bad name.
TJ!
Any updates to your situation? Cripes! you're never around anymore!
