Rear Door Security Locks - GMC 2004 Yukon XL Owner's Manual

3. You are now ready to program the automatic door
locks. Select one of the four programming options
listed previously, and press the unlock side of
the power door lock switch to cycle through the
unlocking options. You will have 30 seconds
to begin programming. If you exceed the 30-second
limit, the locks will automatically lock and unlock
and the horn will chirp twice to indicate that
you have left the program mode. If this occurs,
repeat the procedure beginning with Step 1
to re-enter the programming mode.
You can exit the program mode any time by turning the
ignition to RUN. The locks will automatically lock and
unlock and the horn will chirp twice to indicate that you
are leaving the program mode. If the lock/unlock
switches are not pressed while in the programming
mode, the current auto lock/unlock setting will not be
modified.
See your dealer for more information.
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Rear Door Security Locks

If your vehicle is equipped with this feature, you can
lock the rear side doors so they cannot be opened from
the inside by passengers.
This feature is located on
the inside edge of the
rear doors.