Oldsmobile AURORA 2001 Owner's Manual page 75

The master key works in
all of the lock cylinders
(doors, trunk, ignition and
glove box).
The VALET key only
operates the doors and
the ignition.
Both the master and VALET key have a transponder
embedded into the key for security and vehicle theft
deterrence. The keys also come with a bar code tag.
Keep the bar code tag in a safe place. If you lose your
key, you will be able to have a new one made using the
bar code tag. The replacement key must have a vehicle
theft deterrent system transponder embedded in it.
NOTICE:
Your vehicle has a number of features that can
help prevent theft. But you can have a lot of
trouble getting into your vehicle if you ever
lock your keys inside. You may even have to
damage your vehicle to get in. So be sure you
have extra keys.
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