One problem related to differential unit has been reported for the 2013 Infiniti JX35. The most recently reported issues are listed below.
The vehicle began making a repetitive thumping sounds that was more frequent as speed increased and less frequent when speed decreased. All tires were checked for debris or defects and none was found. Took to dealership and was advised the front differential failed. The vehicle is not drivable, we are awaiting repair. We are now afraid to get the vehicle back. This is the 5th or 6th time that we had to bring the vehicle back for some repair or recall. Unacceptable for a $50,000 with a 18 months of driving.