GMC 2007 Yukon XL, Owner'S Manual

Page: 142 / 630

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 566. 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.
See your dealer 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 do the
following:
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
for service.
3. After the engine has started, turn the key to
OFF, and remove the key.
4. Insert the new key to be programmed and
turn it to the RUN position within five seconds
of removing the original key.
5. The security light will turn off once the key
has been programmed.
6. Repeat Steps 1 through 5 if additional keys
are to be programmed.
If you are driving and the security light comes on
and stays on, you may be able to restart your
engine. Your PASS-Key
®
III+ system, however,
may not be working properly and must be serviced
by your dealer.
If you lose or damage your PASS-Key
®
III+ key,
see your dealer or a locksmith who can service
PASS-Key
®
III+ to have a new key made.
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