Rear window and outside mirror defroster/windshield deicer (if so equipped) switch

Rear window and outside mirror defroster/windshield deicer (if so equipped) 
switch  - Instruments and controls - Infiniti QX Owners Manual - Infiniti QX

See also:

Floor mats
WARNING To avoid potential pedal interference that may result in a collision or injury: ► NEVER place a floor mat on top of another floor mat in the driver front position. ► U ...

Antifreeze
In the winter when it is anticipated that the outside temperature will drop below 328F (08C), check antifreeze to assure proper winter protection. For additional information, see “Engine cooli ...

SNOW mode switch
For driving or starting the vehicle on snowy roads or slippery areas, push on the SNOW mode switch. The SNOW mode indicator light will illuminate. When the SNOW mode is activated, engine out ...