Nissan X-Trail 2023 Owners Manual
4.7.1.6. Battery saver system
When the headlight switch is in the
or
position while the ignition switch is in the ON position, the lights will automatically turn off within a period of time after the ignition switch has been placed in the “OFF” position.
When the headlight switch remains in the
or
position after the lights automatically turn off, the lights will turn on when the ignition switch is placed in the ON position.

When you turn on the headlight switch again after the lights automatically turn off, the lights will not turn off automatically. Be sure to turn the headlight switch to the “AUTO” position when you leave the vehicle for extended periods of time, otherwise the battery will be discharged.
Never leave the headlight switch on when the engine is not running for extended periods of time even if the headlights turn off automatically.