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:

Switching off the engine
Before stopping the engine, ensure that the vehicle is parked safely with the parking brake applied and P selected. Press and release the engine START/STOP button to stop the engine. The audio, t ...

Replacing Safety Belt System Parts after a Crash
WARNING A crash can damage the safety belt system in the vehicle. ► damaged safety belt system may not properly protect the person using it, resulting in serious injury or even death in a cr ...

Climate Controls
  A. Fan Control B. AUTO (Auto Operation) C. Defrost D. Air Recirculation E. REAR (Rear Climate Control) F. Air Delivery Mode Control G. Driver Side Temperature Control H. Display I. P ...