Oldsmobile cutlass supreme 1996 Owner's Manual page 62

The ignition keys are for the
ignition only.
The ignition keys don't have plugs. Your Oldsmobile
retailer or Roadside Assistance has the code for'
your keys.
,
Each plug has a code on it that tells your retailer or a
qualified locksmith how to make extra door keys. Keep
the plugs in a safe place. If you lose your door keys,
you'll be able to have new ones made easily using
these plugs.
If you need a new ignition key, contact your Oldsmobile
The door keys are for the
doors and all other locks.
~
,
When a new Oldsmobile is delivered, the retailer
I
the first owner.
removes the plugs from the door keys and gives them to
retailer who can obtain the correct key code, or, in an
emergency, call Oldsmobile Roadside Assistance at
1-800-442-OLDS (6537).
'
NOTICE:
Your Oldsmobile 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.