Pass-Key Iii+ Operation - GMC 2008 Yukon Denali Owner's Manual

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PASS-Key III+ Operation
Your vehicle has PASS-Key
Automotive Security System) theft-deterrent system.
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PASS-Key III+ is a passive theft-deterrent system.
The system is automatically armed when the key
is removed from the ignition.
The system is automatically disarmed when the key is
turned to ON/RUN, ACC/ACCESSORY or START
from the LOCK/OFF position.
You do not have to manually arm or disarm the system.
The security light will come on if there is a problem
with arming or disarming the theft-deterrent system.
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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 cluster comes on when trying to
start the vehicle, there may be a problem with your
theft-deterrent system. Turn the ignition off and try again.
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III+ (Personalized
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 5-108. 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/retailer who can service the
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PASS-Key III+ to have a new key made. In an
emergency, contact Roadside Assistance.
It is possible for the PASS-Key
the transponder value of a new or replacement key. Up
to 10 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/retailer
or a locksmith who can service PASS-Key
keys made and programmed to the system.
See your dealer/retailer or a locksmith who can service
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PASS-Key III+ to get a new key blank that is cut
exactly as the ignition key that operates the system.
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III+ decoder to learn
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III+ to have