GMC 2009 Sierra User Manual

Page 97

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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
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 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

®

III+ to have

keys made and programmed to the system.

See your dealer/retailer or a locksmith who can service
PASS-Key

®

III+ to get a new key blank that is cut

exactly as the ignition key that operates the system.

To program the new additional key:

1. Verify that the new key has a

1

stamped on it.

2. Insert the original, already programmed, key in the

ignition and start the engine. If the engine will not
start, see your dealer/retailer for service.

3. After the engine has started, turn the key to

LOCK/OFF, and remove the key.

4. Insert the new key to be programmed and turn it to

the ON/RUN position within five seconds of turning
the ignition to the LOCK/OFF position in Step 3.

The security light will turn off once the key has been
programmed.

5. Repeat Steps 1 through 4 if additional keys are to

be programmed.

If you lose or damage your PASS-Key

®

III+ key, see

your dealer/retailer or a locksmith who can service
PASS-Key

®

III+ to have a new key made.

Do not leave the key or device that disarms or
deactivates the theft deterrent system in the vehicle.

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