Chevrolet 1995 Lumina Owner's Manual page 58

The ignition keys are for the
ignition only.
The door keys are for the
doors and all other locks.
The ignition keys don't have plugs. Your Chevrolet
dealer or Roadside Assistance has the code for your
keys.
Each plug has a code on it that tells your dealer 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
If you need a new ignition key, contact your Chevrolet
dealer who can obtain the correct key code, or, in an
emergency, call Chevrolet Roadside Assistance at
plugs.
1-800-CHEV USA (1-800-243-8872).
NOTICE:
Your Chevrolet 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 keys inside. You may even have to
damage your vehicle to get in. So be sure you
have extra keys.
When a new Chevrolet is delivered, the dealer removes
the plugs from the door keys and gives them to the first
owner.
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