Toyota Prius 2010 Repair Manual page 223

NOTICE:
When connecting any airbag connector, take care not to damage the airbag wire harness.
(1) Before connecting the connector, check that the position of the white housing lock is correct as shown in the
illustration.
(2) Be sure to engage the connectors until they are locked (when locking, make sure that a click sound can be
heard).
2010 Toyota Prius Repair Manual