Honda 1997 Prelude Owner's Manual page 48

Learning Key
You should also receive a small case
containing a learning key. It is used
by the Honda dealer to code replace-
ment keys to your vehicle's
Immobilizer System. It must not be
used in your vehicle's ignition switch.
Store the learning key with the key
number plate in a safe place.
If you attempt to use the learning
key to start your vehicle's engine, it
may cause a malfunction in the
system that makes your master and
valet keys unusable. If this happens,
you should contact your Honda
dealer.
If you need a new key made, take the
key number plate, the learning key,
and all other keys that came with
your car to your Honda dealer.
Keys and Locks
Immobilizer System
The Immobilizer System protects
your vehicle from theft. A properly-
coded master or valet key must be
used in the ignition switch for the
engine to start. If an improperly-
coded key (or other device) is used,
the engine's starting circuit is
disabled.
When you turn the ignition switch to
ON (II), the Immobilizer System
indicator should come on for a few
seconds, then go out. If the indicator
starts to blink, it means the system
does not recognize the coding of the
key. Turn the ignition switch to
LOCK (0), remove the key, reinsert
it, and turn the switch to ON (II)
again.
If the system repeatedly does not
recognize the coding of your key,
contact your Honda dealer.
Instruments and Controls
CONTINUED