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:

Locking with mechanical key
Locking with mechanical key The power door lock system allows you to lock or unlock all doors simultaneously using the mechanical key. • Turning the driver’s door key cylinder to the front of the ...

Remote Engine Start (if so equipped)
The button will be on the INFINITI Intelligent Key if the vehicle has remote engine start. This feature allows the engine to start from outside the vehicle. The following features may be af ...

Drinking alcohol/drugs and driving
WARNING Never drive under the influence of alcohol or drugs. Alcohol in the bloodstream reduces coordination, delays reaction time and impairs judgement. Driving after drinking alcohol increases th ...