Cadillac 2007 - Manual (Page 170)

3. Pull the cargo panel up and then out from the
side rails and set it aside. You only need to
remove as many cargo panels as needed
for your cargo carrying needs.
4. Remove cargo panel 2 in the same way and
set it aside.
5. Remove cargo panel 1, but notice that there
are four latches to release (two left-side and
two right-side latches). Set the panel aside.
After each cargo panel is removed, store them
within the cargo storage area using the cargo
panel storage system.
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