road noise from driverside door seal

Could just be that the cold weather has made the rubber go hard. Also check for ice that might interfere with the seal.

 

Folks bedeviled with whistling sounds have discovered that it is
difficult to pin pont where they are coming from. Most often the
sounds have originated from torn or missing covers over little screw
holes under the outside mirrors. Here is a thread detailing this issue:

http://priuschat.com/forums/gen-ii-prius-main-forum/36158-anybody-else-have-wind-noise-whistle.html

However, there has been other sourches such as the window
gasketing, whicih have proved much more difficult to locate. Here is
a thread that may help you find and fix your problem:

http://priuschat.com/forums/gen-iii-2010-prius-main-forum/69071-new-prius-whistling-sound.html

Hope this helps.

 

I had the exact same problem when my car was "new." I had to cut out a piece of foam (luckily it was dark gray foam so it matched my interior) and wedge it at the base of the A-frame, where the dash and A-frame meet. The foam still sticks out but at least it doesn't rattle and make sound anymore.

 

Try doin' an old school. ROLL DOWN THE WINDOW and try bending that corner in a little. Don't laugh if you ever worked in a body shop you would have seen that done many times.
And if you take it to the dealer body shop as soon as your out of sight they'll try it too.

This also happens alot when a pop-a-lock service pops the door using the air bag there all using now and the frame gets bent slighly.

Good Luck.