Chevrolet 2005 Uplander Owner's Manual page 222

DELAYED LOCKING
This feature allows the locking of the vehicle to be
delayed until all of the doors have been closed
for approximately five seconds.
When the delayed locking feature is enabled, it may be
activated when the key is out of the ignition by doing
one of the following:
•
Pressing the driver's door power lock switch
one time while the driver's door is open.
•
Pressing the passenger's door power lock switch
one time while the passenger's door is open.
•
Pressing the lock button on the remote keyless
entry transmitter one time while any door is open.
Two chimes will sound to signal that delayed locking
is active.
The doors may be locked immediately by repeating
one of the above actions more than one time.
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If a door remains open, without any other door being
opened or closed, the vehicle will lock after
approximately 45 seconds.
If a key is in the ignition, this feature will not lock the
doors. See Delayed Locking on page 2-12 for more
information.
Press the menu button until DELAYED LOCKING
appears on the DIC display. Press the set/reset button
to scroll through the following choices:
OFF: There will be no delayed locking of the
vehicle's doors.
ON (default): The locking of the vehicle's doors will be
delayed by five seconds while a door is open after a
power door lock switch is pressed, or the lock button on
the remote keyless entry transmitter is pressed while
a door is open.
Choose one of the available settings and press the
menu button while it is displayed on the DIC to select it
and move on to the next feature.