GMC 2007 Yukon XL Owner's Manual page 267

NO CHANGE: No change will be made to this
feature. The current setting will remain.
Choose one of the available settings and press
the set/reset button while it is displayed on the DIC
to select it.
REMOTE DOOR LOCK
This feature allows you to select the type of
feedback you will receive when locking the vehicle
with the remote keyless entry transmitter. You will
not receive feedback when locking the vehicle with
the remote keyless entry transmitter if the doors are
open. See Remote Keyless Entry System
Operation on page 113 for more information.
Press the customization button until REMOTE
DOOR LOCK appears on the DIC display. Press
the set/reset button once to access the settings for
this feature. Then press the customization button to
scroll through the following settings:
OFF: There will be no feedback when you press
the lock button on the remote keyless entry
transmitter.
LIGHTS ONLY: The exterior lamps will flash when
you press the lock button on the remote keyless
entry transmitter.
HORN ONLY: The horn will sound on the second
press of the lock button on the remote keyless
entry transmitter.
HORN & LIGHTS (default): The exterior lamps
will flash when you press the lock button on the
remote keyless entry transmitter, and the horn will
sound when the lock button is pressed again within
five seconds of the previous command.
NO CHANGE: No change will be made to this
feature. The current setting will remain.
Choose one of the available settings and press
the set/reset button while it is displayed on the DIC
to select it.
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