TOYOTA 2011 Sienna - Manual (Page 598)

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3-7. Using the storage features
Glove boxes
Upper glove box
Push the button.
Lower glove box
The lower glove box can be opened by pulling the lever and can be
locked and unlocked by using the master key (vehicles without a
smart key) or the mechanical key (vehicles with a smart key system).
Unlock
Lock
Open
Glove boxes