Toyota 2012 Prius Owner's Manual page 167

1-4. Opening, closing and locking the doors
■
Using the mechanical key
The doors can also be locked and unlocked with the mechanical key.
(→P. 591)
■
If a wrong key is used
The key cylinder rotates freely to isolate inside mechanism.
■
Customization
Settings (e.g. unlocking function using a key) can be changed.
(Customizable features →P. 639)
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PRIUS PHV_OM_OM47818U_(U)