I just got a G37 with a cup holder wont close issue.

The trick to removing the cup holder is that you need to remove the whole center console. To do this you can follow instructions in service manual but basically:

- Remove plastic covers in front of shift **** (use plastic pry tool).
- Remove shift **** and shift cover (pull down metal trim below **** and remove retaining clip, then pry up cover with plastic pry tool)
- Remove 2 screws at front of console (underneath the radio trim panel)
- Remove screws in front of cup holder (mine were broken)
- Open center console box (behind cupholder) and remove black panel that contains power socket and USB port (use plastic pry tool to pull lower part of panel back toward rear of car about an inch, then push up and panel will come out)
- Disconnect the wire harness connected to black panel
- Move to back seat and remove vent (using plastic pry tool)
- Remove the 2 screw connecting the center console
- Disconnect any wire harnesses in center console (there are 5 or 6, including a rear one that is zip tied)
- Pull up on rear of center console and it will come out of car (moving seats up will help)
- Flip it upside down and cup holder is removed with 4 screws

****Added bonus****
To repair cup holder that will not close you will need to remove the small "L shaped" arm on drivers side of cup holder (one screw). On the short leg of the "L" there is a small hole that is supposed to fit over a plastic pin on the cup holder lid side bracket. That pin has broken off and I replaced with small screw screwed into the cup holder lid side bracket. Boom it is fixed. Screw head needs to fit in hole on the short leg of the "L".