Auto Door Lock Function
WARNING: This page is about a different car, the 2005 Infiniti FX45 and 2005 Infiniti FX35. However, it is still accessible from the selected car via links, so may be relevant.
After the door request switch in the driver or passenger or back door is operated and the vehicle door is unlocked, all the doors are automatically locked unless the mechanical key is inserted into the ignition knob, the ignition knob is pressed, any door request switch is pressed, any one of the doors is opened, or an Intelligent Key remote control button is operated within 30 seconds.