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:

Front Wiper Blade Replacement
1. Pull the windshield wiper arm connector away from the windshield. 2. Squeeze the grooved areas on each side of the blade, and turn the blade assembly away from the arm connector. 3. Install ...

Reducing Speed While Using Cruise Control
If the cruise control system is already activated, Press and hold the SET– button on the steering wheel until the desired lower speed is reached, then release it. To slow down in small amoun ...

Service and literature
Your vehicle is covered under the terms of the warranties printed in the Service and Warranty Information booklet. Your authorized Mercedes-Benz Center will exchange or repair any defective parts ...