Toyota 2015 Prius Owner's Manual page 402

3-5. Other interior features
Luggage compartment features
Cargo hooks
■
Deck boards
■
Center (type A)
PRIUS_OM_OM47A17U_DVD_(U)
Raise the hook to use.
The cargo hooks are provided
for securing loose items.
When using the auxiliary box,
lift the center deck board.
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