I have a 06 RDV. I love this vehicle. The only problem is that it makes a lot of road noise. Or I think that's what it is. I've also thought it could be wind noise. My sister owns a Trailblazer and says hers does the same thing so I'm thinking that maybe it's the open interior. I took it in and they said it was incorrect tire pressure. After fixing that it still made the noise. It is a low, base sound that comes from the back of the vehicle. The sound is louder if there is weight in the back. Going over bridges is the loudest. It just seems to echo inside it. The dealer said the RDV shouldn't make noise. They say they are going to spray insulation in it to try to reduce the noise. I am taking it to another dealer and getting their take on it. I think I've stumped them and they are blowing me off. Has anyone else experienced this problem?