Nissan ARIYA 2023 Owners Manual
5.2.5. Adjust
For adjustable head restraint
Adjust the head restraint so the centre is level with the centre of your ears. If your ear position is still higher than the recommended alignment, place the head restraint at the highest position.
For non-adjustable head restraint
Make sure the head restraint is positioned from the stored position or any non-latch position so the lock knob is engaged in the notch before riding in that designated seating position.
Owners Manual