Mine will open fine. Its the second tile window that has the problem. I can open it all the way to the 4 position. Sometimes it will give me troubles closing past 3. Thats when I have to manually adjust the second glass with my hands.
So in terms, It is attatched in the track fine, it is missing the pins that pull the top down and seal the window in tight.
2006 G6 GT
Mods so far: Black arrow overlays, Chrome recessed grilles, Blue LED license plate light, Blue LED reverse lights, Smoked tails, 20% Tint all around, Red led's for the interior, White led dome and map lights.
Sound System: 4 Infinity Kappa component speakers, 2 Amps (950w total) and 2 10" Kenwood KFC subwoofers, 7" touch screen Pioneer DVD
Performance: Mobile 1 oil, Mobile 1 oil filter