Cadillac 2007 - Manual (Page 121)

PASS-Key ® III+ Operation
Your vehicle has PASS-Key ® III+ (Personalized
Automotive Security System) theft-deterrent
system. PASS-Key
® III+ is a passive
theft-deterrent system. This means you do not
have to do anything special to arm or disarm the
system. It works when you transition the key
to RUN, ACCESSORY or START from the OFF
position.
When the PASS-Key ® III+ system senses that
someone is using the wrong key, it prevents the
vehicle from starting. Anyone using a
trial-and-error method to start the vehicle will be
discouraged because of the high number of
electrical key codes.
If the engine does not start and the security light
on the instrument panel comes on when trying
to start the vehicle, 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. At this time, you may also want to check the
fuse, see Fuses and Circuit Breakers on
page 509. If the engine still does not start with the
other key, your vehicle needs service. If your
vehicle does start, the first key may be faulty. See
your dealer who can service the PASS-Key
® III+
to have a new key made. In an emergency,
contact Roadside Assistance.
It is possible for the PASS-Key ® III+ decoder to
learn the transponder value of a new or
replacement key. Up to nine additional keys may
be programmed for the vehicle. The following
procedure is for programming additional keys only.
If all the currently programmed keys are lost or
do not operate, you must see your dealer or
a locksmith who can service PASS-Key
® III+ to
have keys made and programmed to the system.
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