Ford Villager Owner's Manual page 145

Unfastening the auxiliary safety restraint system
Both tongues must be attached to their appropriate buckles
whenever someone is riding in that seating position.
When the two-passenger bench seat is removed from the
vehicle, you must detach the single window tongue from the
auxiliary buckle.
Third-row passengers must be very careful when exiting if the
auxiliary restraint system is being used by a second-row
passenger. It is important to step over the seat belt guide and
belt webbing to avoid tripping.
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