Went by the dealer today since noticing a musty damp smell from time to time coming from the vents. Turns out there is a TSB on it having something to do with an after dryer or blower or something and living in humid areas. (Never noticed the smell in CO, but no humidity there) Have an appt next Weds. The lady printed out the wrong one so I dont know the specifics. Maybe Chevy service dude on here know more. But anyway if you have an odor coming from your vents, call your dealer and they should be able to hook you up too. I thought it was a bad cabin filter, but nope its a known issue. Hope this helps someone else out.

 

thats pretty interesting. i havent noticed a smell in mine, does it apply to 2011s? or just 2010

 

Dont know, but I'll ask when I go back if you havent found out by then. I tried to track down what setting it was acting the worst in, but cant really tell. It seems to move around on me. I would have never even asked, but I was there to get a new "R" (my chrome is peeling off) and my visor has a little crack where the vinyl didnt seal well. I only have 5k or 5 months on the warranty so I am trying to get all these things sorted out.

 

So it is HVAC Bulletin 10240A

Description of work is Deoderize/Install Delay Blower Control

It smelled a little better, but time will tell if is it good to go.