GM Chevrolet Avalanche - Manual (Page 133)

2. Remove cargo panel 3 by pulling the left and right
cargo panel latches, located on the bottom of each
cargo panel, toward you to unlock the cargo
panel latches.
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 (if you need to) in the same
way and set it aside.
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