The figure shows the option for left-hand drive models.
The headlight washers can only operate if the ignition is on and the headlight switch is turned to the position
or 
To turn on the washer, press the button in the direction Ⓐ
Caution: Do not operate the washer continuously for more than 15 seconds. Do not operate the washer if there is no fluid in the washer reservoir or if the fluid is frozen.
Note: It is recommended to operate the headlight washer twice within 5 seconds, which will result in better cleaning of the headlight glass and allow the windshield wiper to complete a full cycle.
[Original text on the website: NissanBook.ru]
For more detailed information on filling the washer reservoir, see the section "Maintenance and DIY operations".