This might have come up before. It sounds familiar to me.
I searched the sight & couldn’t find the thread.
As of yesterday, when I open my passenger door on my G37, the window goes 3/4 of the way down.
It will go back up if I use the window switch, when the car is running or on accessory. It will do this even if the car is off. This is weird.... I would appreciate any helpful info.

 

This has happened to alot of us. Hold both of the window buttons up for a couple of seconds with the car on and it will reset your windows. Or you can look in the manual and it will tell you.

 

Thanks..........
I'll try it now.

 

Worked, Thanks!