I replaced the old weatherstripping with a Toyota Matrix weatherstripping (Toyota 6815101051). It costs 60USD shipped and it is less expensive than the GM parts. It fits perfectly on the Vibe. I was wondering if the even less expensive Corolla weatherstripping also fits the Vibe/Matrix (edited on 5/23/2019: multiple sources confirmed the Corolla front door window weatherstripping works).
I started trying to push the weatherstripping down the metal guide channel as Fred Lyst did in his Youtube video https://www.youtube.com/watch?v=bDuHwyKiOgo but I found it was extremely difficult in my case. So I have to remove the inside door panel and then the window glass (just two 10mm bolts to take off).
Removed parts were set on the back seats.
Now it’s effortless to insert the weatherstripping into the metal guide channel.
I can also pull it down from the inside of the door since the inside door panel has been removed.
The front side of the run channel is short so it’s easy to push it all in. There is one rubber dewel which needs to positioned in the hole on the door frame.
Lastly, use a small tool to run the entire channel to make sure the weatherstripping rests perfectly on the door frame.
Especially in this corner.
Now the glass runs smoothly and seals perfectly.
What caused the original seal to deteriorate and go bad? Also when you said "bolts" were removed in order to pull the glass out, I thought most manufacturers use those large rivets to hold the glass in?