Add One New Key/Keyless Transmitter

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2014 Honda Ridgeline, 2013 Honda Ridgeline, 2012 Honda Ridgeline, 2011 Honda Ridgeline, and 2010 Honda Ridgeline. However, it is still accessible from the selected car via links, so may be relevant.

Have a registered key, a new immobilizer key, and the first password from the iN system.
Connect the HDS to the data link connector.
Turn the ignition switch to ON (II).
Select IMMOBI from the SYSTEM SELECTION MENU, then select IMMOBILIZER SET UP.
Select Add and Delete keys, then Add 1 key.
Do the registration according to the instructions on the HDS screen.
Check if the engine can be started by the newly registered key check that the door locks operate using the Immobilizer key transmitter.