HONDA 2008 Odyssey - Manual (Page 149)

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.
If the system repeatedly does not
recognize the coding of your key,
contact your dealer.
Do not attempt to alter this system
or add other devices to it. Electrical
problems could result that may make
your vehicle undrivable.
If you have lost your key and you
cannot start the engine, contact your
dealer.
The immobilizer system protects
your vehicle from theft. If an
improperly-coded key (or other
device) is used, the engine will not
start.
This indicator also blinks several
times when you turn the ignition
switch from the ON (II) position to
the ACCESSORY (I) or LOCK (0)
position.
When you turn the ignition switch to
the ON (II) position, the immobilizer
system indicator should come on for
a few seconds, then go off. If the
indicator starts to blink, it means the
system does not recognize the
coding of the key. Turn the ignition
switch to the LOCK (0) position,
remove the key, reinsert it, and turn
the ignition switch to the ON (II)
position again.
As required by the FCC:
This device complies with Part 15 of the
FCC rules. Operation is subject to the
following two conditions: (1) This device
may not cause harmful interference, and
(2) this device must accept any
interference received, including
interference that may cause undesired
operation.
Changes or modifications not expressly
approved by the party responsible for
compliance could void the user’s
authority to operate the equipment.
This device complies with Industry
Canada Standard RSS-210.
Operation is subject to the following two
conditions: (1) this device may not cause
interference, and (2) this device must
accept any interference that may cause
undesired operation of the device.
Immobilizer System
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Always take the ignition key with you
whenever you leave the vehicle alone.