Infiniti QX: Rear window and outside mirror defroster - Rear window and outside mirror defroster/windshield deicer (if so equipped) 
switch - Instruments and controls - Infiniti QX Owner's ManualInfiniti QX: Rear window and outside mirror defroster

To defog/defrost the rear window glass

To defog/defrost the rear window glass and outside mirrors, start the engine and push the switch 1 on. The indicator light 2 will come on. Push the switch again to turn the defroster off. It will automatically turn off in approximately 15 minutes.

CAUTION
When cleaning the inner side of the rear window, be careful not to scratch or damage the rear window defroster.

    Windshield deicer (if so equipped)
    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 w ...

    See also:

    What to Use
    Refer to Recommended Fluids and Lubricants   to determine what kind of lubricant to use. ...

    Satellite Radio
    Vehicles with an XM™ satellite radio tuner and a valid XM satellite radio subscription can receive XM programming. XM Satellite Radio Service XM is a satellite radio service based in the 48 cont ...

    Important safety notes
    WARNING   The PARKTRONIC is a supplemental system. It is not intended to, nor does it replace, the need for extreme care. The responsibility during parking and other critical maneuvers ...