NO !!!
On the drivers side you can reach up and snap that fitting into the fire wall without removing anything.
On the passanger's side you need to remove just the end cap of the dash and fold down the glove compartment. Behind that end cap there is a hole to reach thru to get ahold of the fitting to snap it back in.

I could do it in about 10 minutes, taking my time, but then again I know what I'm doing,. Sounds like your dealeship doesn't.

 

Please...Please people. read the post and follow the instructions. I know from experience that this is a $300 + body control module that will be fried. after the labor and having the reprogramming done, you can take a guess how much the final bill will be. everybody knows the horror stories of dealer work and fly by night mechanics. I was lucky and didn't get ripped. thanks to a good friend who owns the repair shop. now I am paranoid until I get the tubes fixed. found some water on the floor after it rained and damn near went into cardiac arrest. I cannot express enough gratitude for the people who take the time to help us out here. god bless the Hummer owners.

 

we had a 4 hr rain yesterday and when it cleared I opened the roof and pushed a paper towel in the front corners with a small stick. It barely got damp, maybe from sweat on the metal.
my silicon grease treatment seems to work.
keep the metal and rubber clean and greased

 

Finally cut the X's out of my drain tubes after lots of procrastination. Hopefully my water problems are now behind me. Thanks to all who posted here!

 

OK call me lazy or whatever.
I have a 2008 Alpha that has never had a sun roof drain tube problem. After looking at all of the posts, I started to wonder when mine was going to have issues. Not really wanting to disassemble something I didn't really know if I had to, I tried something else. I cleaned my shop vac just to be sure and then covered the drain holes located in the sun roof opening with my vac nozzle. Let it suck for about a minute on each side and checked the canister for debris. And yes....I discovered a few a few leaf particles....arrgghh!!!! Anyway, I think I'm good for a couple of more years. Will keep you updated when the flood hits.

 

Just did this myself and that passenger side was a bear. I had an idea after completing this procedure though. Has anyone thought about putting some sort of screen over the sunroof inlet holes? I was thinking something like drywall mesh tape or ???? that would only allow water through. For those that have tested and DON'T have a problem but know they still have the X something like this would be a great idea I'd think. Even post fix to keep out anything larger..

 

you could roll up a small piece of window screen, good idea!
first preventative measure ive heard, ill try it.

btw,a strong vacume may pull the end back inside the tubing. id test it after to be sure.

 

Thank You So Much for that post!!!!! It was driving me crazy and My wife was ready to trade me in on that one!

 

The "Fix for a Clogged sun roof drain" by Broken Halo

 

what is the easy way to clear the rear drains