GMC 2010 Yukon/Yukon XL Owner's Manual page 148

(Unlock): Press once to unlock only the driver
door. If is pressed again within three seconds, all
remaining doors unlock. The interior lamps may come
on and stay on for 20 seconds or until the ignition is
turned on.
If enabled through the DIC, the turn signal lamps flash
twice to indicate unlocking has occurred. See DIC
Vehicle Customization (With DIC Buttons) on
page 4 72. If enabled through the DIC, the exterior
lights turn on briefly if it is dark enough outside.
See APPROACH LIGHTING under DIC Vehicle
Customization (With DIC Buttons) on page 4 72.
Pressing on the RKE transmitter disarms the content
theft deterrent system. See Content Theft-Deterrent on
page 3 23.
(Liftglass): For vehicles with a liftglass, press and
hold to unlock the liftglass.
(Power Liftgate): For vehicles with a power
liftgate, press and hold to open and close the liftgate.
The taillamps flash and a chime sounds to indicate
when the liftgate is opening and closing.
3-6
(Vehicle Locator/Panic Alarm): Press and release
to locate the vehicle. The turn signal lamps flash and
the horn sounds three times.
Press and hold for more than two seconds to
activate the panic alarm. The turn signal lamps flash
and the horn sounds repeatedly for 30 seconds.
The alarm turns off when the ignition is moved to
ON/RUN or is pressed again. The ignition must
be in LOCK/OFF for the panic alarm to work.
The vehicle comes with two transmitters. Each
transmitter will have a number on it, 1 or 2 .
These numbers correspond to the driver of the vehicle.
For example, the memory seat position for driver 1
will be recalled when using the transmitter labeled 1 ,
if enabled through the DIC. See Memory Seat,
Mirrors, and Pedals on page 2 10 and DIC Vehicle
Customization (With DIC Buttons) on page 4 72
for more information.