Infiniti QX: 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/windshield deicer (if so equipped) switch

Rear window wiper and washer switch
WARNING In freezing temperatures the washer solution may freeze on the rear window glass and obscure your vision. Warm the rear window with the defroster before you wash the rear window. C ...

Rear window and outside mirror defroster
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. ...

See also:

LED Lighting
The vehicle may have LED headlamps. For replacement of the LED lighting assembly contact your dealer. ...

Emergency engine shut off
To shut off the engine in an emergency situation while driving, perform the following procedure: ► Rapidly push the push-button ignition switch 3 consecutive times in less than 1.5 sec ...

Cargo Tie-Downs
Four cargo tie-downs are located in the rear compartment of the vehicle. The tie-downs can be used to secure small loads. ...