Honda CIVIC 2024 Owner's Manual page 182

uuLocking and Unlocking the DoorsuLocking/Unlocking the Doors from the Outside
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Unlocking the Doors Using a Key
If the unlock button of the keyless remote does not work, use the built-in key
instead. The keyhole is on the back of the door handle.
* Not available on all models
180
Insert the built-in key into the key cylinder
from below the handle and then turn it.
1Unlocking the Doors Using a Key
When unlocking, the driver's door unlocks first. Turn
the key a second time within a few seconds to unlock
the remaining doors.
You can customize the door unlock mode setting.
*
2 Settings P. 136
2 Customized Features P. 380
If the lock button of the keyless remote does not
work, refer to the following.
2 Locking a Door Without Using a Key P. 181