Vauxhall Omega Owner's Manual page 106

Place the height adjuster cushion in one of
the rear seat bench seating positions. Press
the rounded side of the supplied adap ter
between the back rest and the seat bench,
as shown in the figure, and engage both
belt buckles in the adapter.
104
Before fitting, ad apt child safety seat to
child's size as necessary – see page 106.
Only m ount safety seat facing aw ay from
the direction of travel and lock the latch
plates audibly into the belt buckles on the
securing c onsole. Tug on the sea t to check
that the belt has engaged properly .
Insert latch p la te of Reboard belt into
buckle at rear of safety seat backrest.
Tighten Reboard belt at belt adjuster. The
child safety seat back rest must rest against
the front seat and the securing console
must be positioned fully on the rear seat.
To a djust the front seat, loosen the reboard
belt. After adjusting the seat, retighten the
belt using the belt adjuster.