With regards to your window issue. It is not normal, but does happen... If it happens again you can re-position the glass by following the steps below.
METHOD 1: (Use this plan!!!)
1-A. Open the car door which needs to have the window adjusted. Turn the ignition to the run mode. Do one door at a time !!!
1-B. In the door jam, release the harness from the door (with a medium screwdriver, pull up the release tab, pull off w/ the palm of your hand, and pull the harness off the door for a minimum of 60 seconds (this is very important as the memory will be lost).
1-C. Reconnect the door harness and lock the tab back down. Close your car door.
1-D. The DIC will ask you to lower your door glass.
1-E KEEP YOUR FINGER ON THE BUTTON FOR 4 TO 5 SECONDS ONCE THE GLASS IS DOWN. ROTATE YOUR FINGER TO THE UP POSITION AND HOLD FOR 4 SECONDS ONCE WINDOW IS AT THE TOP.
OTHER FUNCTIONS MAY APPEAR IN YOUR DIC BEFORE YOU ARE ASKED TO PROGRAM THE WINDOWS. This is normal
Window is now reprogrammed, Repeat to the other door glass.
However, sometimes the door glass regulator does not always relearn on the first attempt. If when you open the door and the door glass does not drop down to the open door position, your window regulator did not relearn or re-normalize...in which case, you are going to need to drop the glass back down, unplug the harness and try again. Yes, it can be picky sometimes and not want to work on the first time.
If Step 1 did not work, you may attempt this method. Also, if you made glass positioning adjustments, this might also be a fix.
2-A. Access the under hood fuse box and remove fuse # 26. Wait one minute and reinstall fuse. Close your hood.
2-B. Get inside car. Close both doors. Start the engine and follow the instructions on the DIC (DRIVER INFORMATION CENTER).
2-C. The DIC should instruct you to run the window down and up on both sides.
2-D. Verify that both windows have express up functions and no DIC message exists. If the DIC does not instruct you to operate the window to re-normalize, do the following.
2-E. With a 2nd person helping, pull the fuse while the window is in the downward motion.
2-F. The window will stop. Release the window switch.
2-G. Reinstall the fuse and go back to step 2-B.
Thanks to Tag UR IT over on Camaro5!