GMC 2003 GMT560 T-Series, Owner'S Manual, Page: 38 / 284

Keys
{
CAUTION:
Leaving children in a vehicle with the ignition
key is dangerous for many reasons. A child or
others could be badly injured or even killed.
They could operate the power windows or
other controls or even make the vehicle move.
Don’t leave the keys in a vehicle with children.
One key operates all locks, including the ignition switch.
The key has a code on it that tells your dealer or a
qualified locksmith how to make extra keys. Record
and keep the key code in a safe place. If you lose your
key, you’ll be able to have a new one made easily using
this code.
Notice: Your vehicle has a number of features that
can help prevent theft. You can have a lot of trouble
getting into your vehicle if you ever lock your keys
inside. You may even have to damage your vehicle to
get in. So be sure you have spare keys.
2-2