Chevrolet Avalanche Owner's Manual page 215

UNLOCK DRIVER: IN PARK: The driver's door will be
unlocked when the vehicle is shifted into PARK (P).
UNLOCK DOORS: KEY OUT: All of the doors
will unlock when the key is taken out of the ignition.
UNLOCK DOORS: MANUALLY: The doors will not be
unlocked automatically.
Choose one of the available options and press the
customization button while it is displayed on the DIC to
select it and move on to the next feature. For more
information on automatic door locks, see Programmable
Automatic Door Locks on page 2-10.
Door Lock Delay
If your DIC does not have this feature, you can still
program the delayed locking feature. See Delayed
Locking on page 2-9 for more information.
When locking the doors with the power lock switch or
the remote keyless entry transmitter and a door or
the tailgate is open, the delayed locking feature
will delay locking the doors and tailgate until
five seconds after the last door is closed.
Press the customization button until DOOR LOCK
DELAY appears in the display. To select your
preference for delayed locking, press the select button
while DOOR LOCK DELAY is displayed on the DIC.
Pressing the select button will scroll through the
following choices:
DOOR LOCK DELAY: OFF (default): The doors will
lock immediately when pressing the power lock switch or
the lock button on the remote keyless entry transmitter.
DOOR LOCK DELAY: ON: The doors will not lock
until five seconds after the last door or the tailgate is
closed. You will hear three chimes to signal that
the delayed locking feature is in use. You can
temporarily override delayed locking by pressing the
lock button on the door or the remote keyless entry
transmitter a second time.
Choose one of the available options and press the
customization button while it is displayed on the DIC to
select it and move on to the next feature. For more
information on automatic door locks, see Programmable
Automatic Door Locks on page 2-10.
This feature will not operate if the key is in the ignition.
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