Add one new key

WARNING: This page is about a different car, the 2009 Acura MDX, 2008 Acura MDX, and 2007 Acura MDX. 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 ON (II).
Select "IMMOBILIZER" from the "SYSTEM SELECT" menu.
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 the keyless remote operation to make sure that it functions properly.