GMC 2001 Denali Owner's Manual page 92

Your vehicle has one
-
double sided key for the
ignition and all door locks
as well as the spare tire
hoist lock.
If you ever lose your keys, your dealer will be able to
assist you with obtaining replacements.
In an emergency contact roadside assistance.
See "Roadside Assistance" in the Index for
more information.
Your vehicle also has a key
that locks and unlocks the
center floor console only.
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