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:

Checking the washer fluid level
WARNING Some windshield washer products are inflammable, particularly if high or undiluted concentrations are exposed to sparking. Do not allow washer fluid to come into contact with naked f ...

Remote Keyless Entry (RKE) System
See Radio Frequency Statement   for information regarding Part 15 of the Federal Communications Commission (FCC) rules and Industry Canada Standards RSS-GEN/210/220/310. If there is a decr ...

Fog Lamps
For vehicles with fog lamps, they can be used for better vision in foggy or misty conditions. The parking lamps and/or low-beam headlamps must be on for the fog lamps to work. The fog lamp button ...