does the 2005 malibu maxx ls sunroof open

If the car has a sunroof, then yes, by default it will open. If it's a power sunroof/moonroof, it will even slide all the way open. If not, just enough to let air in....you can determine what the car has (or doesn't have) by contacting the dealer.

Don't you get tired of people answering your questions, who know nothing about your specific vehicle? I sure do.