Chevrolet Caprice 2011 Owner's Manual page 39

If the vehicle does not start:
Avoid attaching several keys
with the ignition key.
Avoid attaching keys from other
vehicles to the ignition key.
Do not attempt to start the
vehicle with a non-approved key.
Do not disassemble the key.
When trying to start the vehicle,
if the engine does not start, the key
may have a damaged transponder.
Turn the ignition off and try again.
If the engine still does not start, and
the key appears to be undamaged,
try another ignition key.
If the engine still does not start, the
vehicle needs service. See your
dealer to service the theft-deterrent
system and have a new key made.
The following procedure is for
programming additional keys only.
If all vehicle keys are lost or no
longer work, see your dealer.
A new key must be made prior
to programming.
A maximum of eight keys can be
programmed for the vehicle.
The key is purchased as two
sections: the key blade and
immobilizer section (A) and the
Remote Keyless Entry and remote
start system section (B). If package
AMF is purchased, you will receive
six keys and transmitters.
Keys, Doors and Windows
If the vehicle fleet has common
key coding, SEO 6E3 or SEO 6E4,
the additional SEO AMF remote
transmitters must be programmed
separately for a vehicle in the fleet.
Do not join the two key sections
until programming is complete.
To program a new section (A):
1. Cut the new key blank to match
the existing vehicle key.
2. Using the existing key, turn the
ignition to ON/RUN with the
engine off.
3. Turn the key to OFF/LOCK and
remove the key from the ignition.
4. Insert and turn the new
section (A) to ON/RUN within
10 seconds of removing the
existing key.
The vehicle has now learned the
new key.
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