GMC 2007 Yukon XL Owner's Manual page 177

To use the cover, do the following:
1. Pull the cover handle toward the rear of the
vehicle.
2. Latch the cover posts into the retaining
sockets on the cargo area trim panels.
To return the cover to the retracted position, do
the following:
1. Pull up on the cover handle to release the
cover posts from the retaining sockets.
2. Let the cover move forward to the full retracted
position.
To remove the cover, from a regular wheelbase
model, do the following:
1. Let the cover go all the way into the holder.
2. Then, grasping the driver's side cover endcap,
push the cover endcap toward the passenger's
side of the vehicle.
3. Swing the cover rearward and take it out of
the vehicle.
To put the cover in the vehicle, do the following:
1. Make sure the cover slot in the holder faces
rearward with the round surface facing down.
2. Then, hold the cover at an angle and place
the cover endcap into the slot in the
passenger's side trim panel.
3. Move the other end of the cover forward and
hold it next to the driver's side trim panel slot.
4. Press the endcaps in, this will allow the cover
to fit into the trim slot.
5. Lightly pull on the cover holder to make sure
it is secure.
On the extended wheelbase models there are
two cover positions. The slots furthest
forward allow the cover to be used if the third
seat is removed or folded down. The cover
can be installed and removed from either side.
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