Cadillac 1995 DeVille Owners Literature page 83

Matching Rmsmitter(s) To Your Vehicle
Each key chain transmitter is coded to prevent another transmitter from
unlocking your vehicle. If
a
transmitter is lost or stolen, a re,placement can
be purchased through your dealer. Remember to bring any remaining
transmitters with you when you go to your dealer. When the dealer
matches the replacement transmitter to your vehicle. the remaining
transmitters n m t also be ntatched. Once the new transmitter is coded. the
lost transmitter will not unlock p ~ r vehicle.
See your dealer to match transmitters to another vehicle.
Buttery Replacement
Under normal use. the barteries in your key clmin transmittcr should
last
about two years.
2- 1 0
1.