Rear window and outside mirror defroster/windshield deicer (if so equipped) switch

Rear window and outside mirror defroster/windshield deicer (if so equipped) 
switch  - Instruments and controls - Infiniti QX Owners Manual - Infiniti QX

See also:

Dual head restraint DVD system (if so equipped)
If your vehicle is equipped with the Dual Head Restraint DVD System, you can enjoy playing video files via a DVD, CD or USB memory that provides images and sound both from the front and rear d ...

Owner’s Manual/Service Manual order information
A genuine INFINITI Service Manual is the best source of service and repair information for your vehicle. Filled with wiring diagrams, illustrations and step-by-step diagnostic and adjustment procedure ...

Engine protection mode
The engine has an engine protection mode to reduce the chance of damage if the coolant temperature becomes too high (for example, when climbing steep grades in high temperature with heavy load ...