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:

Lane Departure Warning (LDW)/Prevention (LDP) system (if so equipped)
The Lane Departure Warning (LDW) system/ Lane Departure Prevention (LDP) system will operate when the vehicle is driven at speeds of approximately 45 MPH (70 km/h) and above, and when it is tr ...

Tire Pressure Monitor
This vehicle may have a Tire Pressure Monitor System (TPMS). The TPMS warning light alerts you to a significant loss in pressure of one of the vehicle's tires. If the warning light comes on, ...

Returning the Third Row Seat from a Tumbled Position
To return the seat to the normal seating position: 1. Open the liftgate to access the controls for the seat. 2. Make sure there is nothing that could become trapped under the seat. 3. Release the s ...