One problem related to door latch has been reported for the 2006 Infiniti G35. The most recently reported issues are listed below.
: the contact stated while at a gasoline station to fill the gas tank, the fuel door was lock and would not unlock. An independent mechanic at the gasoline station recommended accessing the fuel door lock through a panel in the trunk. However, once the trunk was opened there was no access through the trunk. The emergency infinity road assistance was contacted who provided the same recommendation which was also listed in owner's manual. When the vehicle was taken to the infinity dealer the mechanic was also surprised about the inability to access the fuel tank through the trunk. To open the fuel tank door a plastic item was inserted about an inch through the door which resulted in breaking the latch which meant it could not be lock again. The manufacturer was notified and determined that this has never happened before and offered to replace the latch.