Windshield deicer (if so equipped)

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

The windshield deicer switch (rear window and outside mirror defroster switch) operates when the ignition switch is in the ON position. The deicer is used to remove ice from the windshield when a wiper is frozen to the windshield. When the switch 1 is pushed, the indicator light 2 illuminates and the deicer operates for approximately 15 minutes. The rear window defroster will activate at the same time. After the preset time has passed, the deicer will turn off automatically. To turn off the deicer manually, push the deicer switch again, and the indicator light turns off.

CAUTION
► When operating the deicer continuously, be sure to start the engine. Otherwise, it may cause the battery to discharge.
► When cleaning the inner side of the window, be careful not to scratch or damage the electrical conductors on the surface of the window.

    See also:

    How to use remote keyless entry system
    When you lock or unlock the doors or the trunk lid, the hazard indicator will flash and the horn (or the outside chime) will sound as a confirmation. For details, see Setting hazard indicator and h ...

    Head restraints (3rd row)
    WARNING Head restraints supplement the other vehicle safety systems. They may provide additional protection against injury in certain rear end collisions. Adjust the head restraints properly, as sp ...

    Installing top tether strap (2nd row captains seats or 2nd row bench seat)
    2nd row bench seat First, secure the child restraint with the LATCH lower anchors (2nd row captains or bench outboard seating positions only) or the seat belt, as applicable. 1. If ne ...