One problem related to transmission noise has been reported for the 2013 Infiniti JX35. The most recently reported issues are listed below.
Was accelerating after making a turn, car refused to accelerate. Actual speed of car ~15mph odometer reported 40mph, 5 seconds later odometer jumped from 40mph - 60mph car is going about ~30mph. The car is making extremely loud transmission noises but not accelerating the gas pedal is to the floor. This is an ongoing issue with the car refusing to accelerate intermittently.