Acura 2005 NSX - Owner's Manual - Manual (Page 57)

You should also receive a small case
containing a learning key. It is used
by your dealer to code replacement
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
tag 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 dealer.
The system may not recognize your
key’s coding if another immobilizer
key or other metal object (i.e. key
fob) is near the ignition switch when
you insert the key.
The immobilizer system protects
your vehicle from theft. If an
improperly-coded key (or other
device) is used, the engine’s fuel
system 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.
CONTINUED
Learning Key Immobilizer System
Keys, Immobilizer System
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