I finally had enough of the Acadia and traded it in for a 2007 Silverado. I got tired of things falling apart and the transmission feeling like it had about as much power as a scooter. This was especially true when the a/c was on - no power whatsoever. I didn't feel safe pulling out into traffic or trying to merge, etc., unless there were no cars for quite a distance. I took it in right after I got it in February to re-flash the tranny, but nothing changed. I got caught up doing other things since then but tried to take it back in again in July but couldn't even get my calls returned from the service department where I bought it (here in the Boise area there are only two GMC dealers so theres not much choice). It's a very good looking vehicle, but it's got too many kinks in it right now. I ended up losing a good chunk of money on the trade in but it was well worth it to have confidence again when I drive. The Silverado I got is less than 200 lbs heavier than the Acadia but has 367 hp compared to 275. How does that make sense? I've noticed the two dealers here now have a supply of the Acadia's on their lots where before there were none. Not sure if this is a sign of bad things or not. The one I trade in sold within a week.