Nissan LEAF 2023 Owners Manual
6.10.1.7. Rear fog light (where fitted)
To turn the rear fog light on, turn the fog light switch to the 
position. The switch returns to the headlight switch to the 
position automatically, and the rear for light will illuminate with the front fog lights. Make sure the 
indicator light on the instrument panel illuminates.
To turn the rear fog light off, turn the fog light switch to the position again. Make sure the indicator light on the instrument panel turns off.
To turn both the front and rear fog lights off, turn the fog light switch to the OFF position. When the headlight switch is in the <AUTO> position:
Turning the fog light switch to the
position will turn on the headlights, rear fog lights and the other lights while the power switch is in the ON or READY to drive position.
The headlights must be on for the rear fog light to operate. The rear fog light should be used only when visibility is seriously reduced (generally, to less than 100m (328ft)).
If your vehicle is equipped with a coupling device: Always remove or reposition the mechanical coupling device when it is not in use to avoid obscuring the rear fog light.