Drivers side window sticks have way up

The widow regulator is bad. I believe yours is set up on a gear system. there is a long band that is plastic, of course that will lose teeth. The reason it stops. These are not hard to replace. remove the door panel. You will see the regulator and the track. You will need some tools and a drill to remove rivets. The track will pull out, then slide the new one in. you may have to remove the window to do this. Shop rate is 1 hour + materials.

1. Start the car and leave it idle.
2. Hold the window button down all the way, until the window is completely down.
3. Let go and push it down again and hold the window button for 2 to 3 seconds then let go. (You should be able to hear or feel (very faintly) the motor/sensor reset.)
4. Pull up on the window button and roll the window up until it is all the way up, when it is up let go.
5. Pull the button up again for 2 to 3 seconds. (You should be able to hear or feel (very faintly) the motor/sensor reset.)

The mtor is wearing out. You will have to mnually grab and pull it up

I know this answer is going to sound strange but I had exactly the same problem on a 2007 93 convertible. When you closed the window it would reach the top and then go back down half way. You could edge the window up slowly but as soon as it reached the top it opened again. This was solved by taking to a dealer and upgrading the software for the windows under the manufacturers warranty. There is a firmware update that adjusts the sensitivity for the sensors and solved the problem instantly and i've had no problems for over two months.
Hope this helps.
James Pomeroy MBCS www.BISAS.co.uk

it is probably the motor in the window

If you have power windows it should be a broken cable, If its manual then it should be the crank asm. or the white plastic trac, it may torn at the end.

most of the time it is wires in the drivers door that break in the loom

well check window switch on driver side first does it roll down from that side / does it roll down from passenger side/ next if not do you hear the motor if yes its the switch in driver door that is bad / if you don here the motor then its the regulator/motor that needs replacing/ Please rate my response thank you very much

the window gears are worn out,

Have same problem passenger side window goes up, feels resistance, rolls down half way.  Had been able to hit door on driver side to get window to go up but now it just stays down.  Agree with gspotlight, hate this!  So not impressed by Infiniti.    Having the windows do this is as good as leaving me stranded.