Hummer 2006 H3 Owner's Manual page 75

When a new vehicle is delivered, the dealer provides
the owner with a pair of identical keys and a key
code number.
There is one double-sided
key for the ignition, and
driver's door lock.
The key code number tells your dealer or a qualified
locksmith how to make extra keys. Keep this number in
a safe place. If you lose your keys, you will be able
to have new ones made easily using this number. Your
dealer should also have this number.
Notice: If you ever lock your keys in your vehicle,
you may have to damage the vehicle to get in.
Be sure you have spare keys.
If you ever do get locked out of your vehicle call the GM
Roadside Assistance Center. See Roadside Assistance
Program on page 7-6.
If your vehicle is equipped with the OnStar
an active subscription and you lock your keys inside
®
the vehicle, OnStar may be able to send a command to
unlock your vehicle. See OnStar
for more information.
®
system with
®
System on page 2-36
2-3