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Starting and Operating Instructions
. . . 182
You can program up to ten addi-
tional keys with the two original
keys present. To program an addi-
tional key:
1. Verify that the new key has
PK3+
stamped on it.
2. Start the engine using the pre-
viously programmed master
key.
If the engine does not start,
see your dealer for service.
3. Turn off the ignition and
remove the key.
4. Repeat the previous steps
using the other master key.
5. Within 10 seconds of turning
off the ignition, insert the key
that you are programming
and start the engine.
Once the key is programmed,
the Security System Light will
turn off.
6. If additional keys are to be
programmed, repeat the
previous steps.
If all of your ignition keys are lost
or damaged, see your dealer or a
locksmith who can service Pass-
Key
®
III Plus systems to make and
program a new key.
See your dealer for service.
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Summary of Contents for Hummer H3 2008
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