I've tried everything and called everybody I could but nobody was able to help me out and it looks like ima have to take it to the dealer.my g37 2011 is stuck on ON and I got a red key sign on the right of the screen.the engine,radio or lights are not running.just the lights inside the car can turn on.I know is not the battery because of this fact and I don't know what to do with it.unfortunately don't have the funds for the dealer at the moment.just bought it on December.helpppppppp pleeeeease

 

Place the fob in the "fobgina" below and to the left of the steering wheel to see if it's your fob battery.