GMC 2007 Yukon XL Owner's Manual page 269

Press the customization button until DELAY
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 delayed locking of
the vehicle's doors.
ON (default): The doors will not lock until
five seconds after the last door or the liftgate is
closed.
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.
EXIT LIGHTING
If it is dark enough outside, this feature allows
you to select the amount of time you want the
exterior lamps to remain on. This happens after the
vehicle is unlocked using the remote keyless entry
transmitter or if the vehicle key is turned to LOCK
from RUN.
Press the customization button until EXIT
LIGHTING 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: The exterior lamps will not turn on.
30 SECONDS (default): The exterior lamps will
stay on for 30 seconds.
1 MINUTE: The exterior lamps will stay on for
one minute.
2 MINUTES: The exterior lamps will stay on for
two minutes.
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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