Oldsmobile 1998 Intrigue Owner's Manual page 63

Your vehicle comes with two master keys and one spare
key. The master key can be used for the ignition, as well
as all door locks, trunk and storage compartments. The
third key is provided as a spare key.
These keys don't have key plugs. Your Oldsmobile
retailer or Roadside Assistance has a code for your key.
If you need a new master key, contact your retailer
who can obtain the correct key code or, in an
emergency, call Oldsmobile Roadside Assistance
at 1-800-442-OLDS (6537).
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 key inside. You may have to damage your
vehicle to get in. So be sure you have an
extra key.