Chevrolet 2009 Equinox Owner's Manual page 120

Press the lever down and align the crossrails on both
sides with the holes on the siderails. Move the crossrail
by hand. There will be a notable click as the pins align
into the holes locking the crossrail into place.
Make sure the lever is in the down position, and that the
crossrail cannot be moved by hand when it is in place.
2-44
To reposition the crossrail, pull up on the end levers of
the crossrail to the upright position. This releases the pins
from the holes in the siderail and allows for the crossrail
to be moved into a new position.
Notice: Loading cargo on the luggage carrier that
weighs more than 220 lbs (100 kg) or hangs over the
rear or sides of the vehicle may damage your vehicle.
Load cargo so that it rests on the slats as far forward
as possible and against the side rails, making sure to
fasten it securely.
Do not stand on plastic lower body panels when loading
cargo on the luggage carrier.