Buick 2001 Century Owner's Manual page 91

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PASS Key II
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PASS Key II uses a resistor pellet in the ignition key
that matches a decoder in your vehicle.
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When the PASS Key II system senses that someone is
using the wrong key, it shuts down the vehicle's starter and
fuel systems. For about three minutes, the starter won't
work and fuel won't go to the engine. If someone tries to
start your vehicle again or uses another key during this
time, the vehicle will not start. This discourages someone
from randomly trying different keys with different resistor
pellets in an attempt to make a match.
The ignition key must be clean and dry before it's inserted
in the ignition or the engine may not start. If the engine
does not start and the SECURITY light is flashing,
the key may be dirty or wet. Turn the ignition off.
Your vehicle is equipped
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with the PASS Key II
(Personalized Automotive
Security System)
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theft deterrent system.
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PASS Key II is a passive
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theft deterrent system.
It works when you insert
or remove the key from
the ignition.
Clean and dry the key. Wait about three minutes and try
again. If the starter still won't work, and the key appears
to be clean and dry, wait about three minutes and try
another ignition key. At this time, you may also want to
check the fuse (see "Fuses and Circuit Breakers" in
the Index). If the starter won't work with the other key,
your vehicle needs service. If your vehicle does start,
the first ignition key may be faulty. See your dealer
or a locksmith who can service the PASS
If you accidentally use a key that has a damaged or
missing resistor pellet, the starter won't work. The
SECURITY light will then come on. But you don't have
to wait three minutes before trying another ignition key.
See your dealer or a locksmith who can service the
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PASS Key II to have a new key made.
If you're ever driving and the SECURITY light comes
on, you will be able to restart your engine if you turn it
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off. Your PASS Key II system, however, is not working
properly and must be serviced by your dealer. Your
vehicle is not protected by the PASS
If you lose or damage a PASS
see your dealer or a locksmith who can service
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PASS Key II to have a new key made. Also,
see "Roadside Assistance" in the Index for
more information.
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Key II.
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Key II system.
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Key II ignition key,
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