Nissan X-Trail e-POWER 2023 Owners Manual
4.3.6.5. Checking seat belt operation
Seat belt retractors are designed to lock seat belt movement:
When the seat belt is pulled quickly from the retractor.
When the vehicle slows down rapidly.
To increase your confidence in the seat belts, check the operation by grasping the shoulder belt and pulling forward quickly. The retractor should lock and restrict further belt movement. If the retractor does not lock during this check, contact a NISSAN dealer or qualified workshop immediately.
Owners Manual