Opel CORSA Owner's Manual page 56

54 Storage
Pull release lever up. The system
disengages and travels quickly out of
the bumper.
Completely pull out the rear carrier
system until you hear it engage.
Ensure that it is not possible to push
in the rear carrier system without
pulling the release lever again.
9 Warning
It is only permissible to fit objects
to the rear carrier system if the
system has been correctly
engaged. If the rear carrier system
will not engage correctly, do not fit
objects to the system and slide the
system back. Seek the assistance
of a workshop.
Install the tail lamps
First remove the rear (1), then the
front (2) tail lamp from the recesses.
Open out the lamp support on the
back of the tail lamp completely until
it engages.