GMC 2003 Sierra - Manual (Page 97)

II your vehicle is a Crew Cab, It may be equipped with
this feature. When you lock the doors using the
power leek swilch or the remoie keyless entry
trarismiHer with any door open ihree chimes will signal
thal delayed locking is being used
Five seconds after (he last door is closed, all the dtxjrs
will lock, All doors carii be re-op&ned lor up to five
saconds from Ihe lime the last door is closed.
You car loch the door immediately using Ihe power
door lock switch or [he optional remote keyless
eniry transmitter a second lime.
This feature will not lock (he doors it the key is m the
ignition.
To enable or disable the delayed locking teature, do the
following:
1. Press and hold the power door lock awileh on the
driver's door in the lock posillon.
2. Press the remote keyless eniry transmitter unlock
button twice.
If the feature is disabled, Ihe doors will lock innrïiediatety
when a power door lock switch or remote keyless
entry transmitter button is pressed.
Delayed Locking
Programmable Automatic Door
Locks
If your vehicle has power door locks, И is equipped with
a feature that enables you to program the door locks.
Your vehicls left the factory programmed to
automatically lock all doors when the vahicle Is out ol
PARK (P). and all doors unlock when Ihe vehicle is
in PARK (P), You car set the automalic door lock
feature \o unlock the doors you select once Ihe vehicle
is in PARK (P).
II your vehicle has a manual transmission It latt the
factory programmed lo foch all doors when the vehicle
speed is greater than в mph (13 km/h) for two seconds,
and unlock all doors once the key is removed from
the ignition. You can sal the auiomatic cfoor lock fealurE
to unlock the doors you select once the kgy Is removed
from Ihe ignition.
The folbwrng instmctlons detail how to program your
door locks.
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