My Bonneville has more wind noise then my mom'* trailblazer, or my friends'* '97 cutlass supreme. Do these cars tend to have more wind noise due to their design? All my door seals seem to be alright, although they are not so tight at the corners (although I feel no wind coming from them.)

I was on I-75 and it sounded like we were in some kind of aircraft, it was not good.

That'* where the noise typically comes from. At the corners where it pulls away.

On a warm day, so the seals are easier to work with, pull them out, let them relax, and put them back tightly with some adhesive in those corners. Because of shrinkage, you'll end up with about a 1 or 2" gap at the bottom. Go to the wrecker and buy (or cut) a piece you need. Goop it in between with sealant.

Odds are in favor of this being your issue.

I had a LeSabre before my '95 SE. It does have some more air noise at the B column. Some people have found some improvement with new or aftermarket rubber. But you have to be careful to leave proper water channeling.

In fact, if the seals are pulling away from the corners it isn't helping the situation. You might want to glue them or RTV the seperations. Another reason is that not only will air/noise get through, but water will get in the openings and channel down the columns to the floor.

The gaskets just get old, rigid, and shrink.

I had severe wind noise on my 95 that was actually caused by the windshield trim molding. It had come loose at the top of the windshield ever so little (you could barely see it) and the wind noise inside the car was really loud. Snapped it back down (eventually glued it) and the noise was gone. Anything small outside the car that spoils the original aerodynamics can cause wind noise. Just a thought.

May want to check on the outside of the car that both rear windows are up all the way and sealed against the top. If a regulator goes, the window will start to drop without you realizing. Just a thought, and a beware for the future.

But, as Will stated, it'* very likely those seals.

**EDIT** Sheesh, I'm in 92-99 forum, not '00+. Nix the regulator comment, hehe. I blame the pain-killers I'm on.