Cadillac 1995 DeVille - Ignition Keys and Systems

The square key is for
the ignition only.
It has
a resistor pellet which
is part of the vehicle's
PASS-Key I 13' system.
The
oval is for the
doors and all other
locks.
When your new Cadiilac is delivered, the dealer removes the plug from
the door key. The plug
has a code on it that tells thc dealer or a qualified
locksmith how to make extra keys. However, the ignition key does not
have the knockout plug. The ignition key has a bar code tag attached to it.
Your dealer or qualified locksmith, by reading the bar code tag, can then
make your ignition key.