Pontiac 2001 Montana Owner's Manual page 118

If you need a new key, contact your Pontiac dealer, who
can obtain the correct key code. In an emergency, call
Pontiac Roadside Assistance. See "Roadside
Assistance" in the Index for more information.
2-6
The master key can be
used for the ignition as
well as all door locks, the
liftgate lock and the
storage compartments.
Your vehicle has the PASS
system. The key has a transponder in the key head that
matches a decoder in the vehicle's steering column. If a
replacement key or any additional key is needed, you
must purchase this key from your dealer. The key will
have PK3 stamped on it. Keep the bar code tag that
came with the original keys. Give this tag to your dealer
if you need a new key made.
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Any new PASS Key III key must be programmed
before it will start your vehicle. See "PASS
in the Index for more information on programming your
new key.
NOTICE:
Your vehicle has a number of new features that
can help prevent theft. But you can have a lot of
trouble getting into your vehicle if you ever lock
your key inside. You may even have to damage
your vehicle to get in. So be sure you have an
extra key.
R
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Key III vehicle theft
R
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Key III"