Opel Vivaro Owner's Manual page 62

60 Seats, restraints
Seat belts on the rear seats and
bench seat
The retractor can be located on the
backrest of the seat.
Unfasten
To release belt, press red button on
belt buckle.
Using seat belts while pregnant
9 Warning
The lap belt must be positioned as
low as possible across the pelvis
to prevent pressure on the
abdomen.