GMC 2007 Yukon XL Owner's Manual page 266

AUTO DOOR LOCK
This feature allows you to select when the vehicle's
doors will automatically lock. See Programmable
Automatic Door Locks on page 121 for more
information.
Press the customization button until AUTO 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:
SHIFT OUT OF PARK (default): The doors will
automatically lock when the vehicle is shifted out of
PARK (P).
AT VEHICLE SPEED: The doors will
automatically lock when the vehicle speed is
above 8 mph (13 km/h) for three seconds.
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.
266
AUTO DOOR UNLOCK
This feature allows you to select whether or not to
turn off the automatic door unlocking feature.
It also allows you to select which doors and
when the doors will automatically unlock.
See Programmable Automatic Door Locks on
page 121 for more information.
Press the customization button until AUTO DOOR
UNLOCK 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: None of the doors will automatically unlock.
DRIVER AT KEY OUT: Only the driver's door
will unlock when the key is taken out of the
ignition.
DRIVER IN PARK: Only the driver's door will
unlock when the vehicle is shifted into PARK (P).
ALL AT KEY OUT: All of the doors will unlock
when the key is taken out of the ignition.
ALL IN PARK (default): All of the doors will
unlock when the vehicle is shifted into PARK (P).