Aston Martin DB 9 2010 Manual page 120

With the tabs located line
up the location pins and
locate the two locking pins
either side in the openings
provided.
Twist the pins (left or right)
to release and make sure
they locate correctly.
Removal
Remove the wind deflector
from the vehicle by reversing the procedure to install.
6.12
Operation
Lowered
Grab the top of the raised
section and lower until a
locating 'click' is heard.
Raised
Grab the rear of the top
section and pull upwards
(90°)until a locating 'click' is
heard.