GMC Yukon Denalid Owner's Manual page 265

Press the customization button until REMOTE
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:
OFF: There will be no feedback when you press
the lock button on the RKE transmitter.
LIGHTS ONLY: The exterior lamps will flash
when you press the lock button on the RKE
transmitter.
HORN ONLY: The horn will sound on the second
press of the lock button on the RKE transmitter.
HORN & LIGHTS (default): The exterior
lamps will flash when you press the lock button
on the RKE transmitter, and the horn will
sound when the lock button is pressed again
within five seconds of the previous command.
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.
REMOTE DOOR UNLOCK
This feature allows you to select the type of
feedback you will receive when unlocking the
vehicle with the Remote Keyless Entry (RKE)
transmitter. You will not receive feedback when
unlocking the vehicle with the RKE transmitter
if the doors are open. See Remote Keyless
Entry System Operation on page 116 for more
information.
Press the customization button until REMOTE
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:
LIGHTS OFF: The exterior lamps will not flash
when you press the unlock button on the
RKE transmitter.
LIGHTS ON (default): The exterior lamps will
flash when you press the unlock button on
the RKE transmitter.
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