Page 2-17 of the G37 Owner Manual, under Malfunction Indicator Light:

"Check the fuel-filler cap. If the fuel-filler cap is loose or missing, tighten or install the cap and continue to drive the vehicle. The light should turn off after a few driving trips."

"After a few driving trips, the light should turn off if no other potential emission control system malfunction exists."

"If the light does not turn off after a few driving trips, have the vehicle inspected by an INFINITI dealer."

 

Eh, they said they didn't find anything wrong. They just cleared the light.

 

Go get his done, stop being lazy...

p.s: I know him irl :P

-Nick