Honda CB400 SUPER FOUR Owner's Manual page 58

05/03/25 12:03:13 32MCE610_058
You will need the key number if you ever
have to replace a key. Store the plate in a
safe place.
To reproduce keys, bring all keys, key
number plate and motorcycle to your Honda
dealer.
Up to four keys can be registered with the
immobilizer system (HISS), including the
ones in hand.
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If all keys are lost, the ignition control
module must be replaced. To avoid this
possibility we recommend that if only one
key is left, you immediately have it
reproduced to ensure that a back-up is
available.
These keys contain electronic circuits that
are activated by the immobilizer system
(HISS). They will not work to start the
engine if the circuits are damaged.
Do not drop the keys or set heavy objects
on them.
Do not grind, drill or in any way alter the
original shape of the keys.
Keep the keys away from magnetic
objects.