Opel Speedster Operation, Safety, Maintenance Manual page 4

Lumbar support:
Pump on outboard side of seat
Operate pump to increase support.
To decrease support, release pressure with
Seat belt:
Draw smoothly from inertia reel,
guide over the shoulder and
engage in buckle
lap belt must fit snugly across the body.
To release belt, press red button on belt
buckle.
5 Seat belts - pages 28 to 30,
airbag - page 31.
Adjust interior and exterior mirrors:
The mirror housings can be swivelled 7
into position
Move lever on underside of interior mirror
housing to reduce dazzle at night.
D Further information - page 33.