2012 GMC YUKON lock

Black plate (4,1)GMC Yukon/Yukon XL Owner Manual - 2012
2-4 Keys, Doors, and Windows
K(Unlock):Press once to unlock
only the driver door. If
Kis 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 Vehicle
Personalization (With DIC Buttons)
on page 5‑47. If enabled through
the DIC, the exterior lights turn on
briefly if it is dark enough outside.
See “Approach Lighting” under
Vehicle Personalization (With DIC
Buttons) on page 5‑47.
Pressing
Kon the RKE transmitter
disarms the content theft‐deterrent
system. See Anti-theft Alarm
System on page 2‑14.
m(Liftglass): Press and hold to
unlock the liftglass.
8(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.
L(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
Lfor 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
Lis pressed again.
The ignition must be in LOCK/OFF
for the panic alarm to work.
Programming Transmitters to
the Vehicle
Only RKE transmitters programmed
to this vehicle will work. If a
transmitter is lost or stolen, a
replacement can be purchased and
programmed through your dealer. When the replacement transmitter is
programmed to this vehicle, all
remaining transmitters must also be
reprogrammed. Any lost or stolen
transmitters will no longer work
once the new transmitter is
programmed. The vehicle can have
a maximum of eight transmitters
programmed to it. See your dealer
to program transmitters to the
vehicle.
Battery Replacement
Replace the battery if the REPLACE
BATTERY IN REMOTE KEY
message displays in the DIC. See
“REPLACE BATTERY IN REMOTE
KEY”
under Key and Lock
Messages on page 5‑41 for
additional information.
Notice: When replacing the
battery, do not touch any of the
circuitry on the transmitter. Static
from your body could damage the
transmitter.

Black plate (6,1)GMC Yukon/Yukon XL Owner Manual - 2012
2-6 Keys, Doors, and Windows
If the vehicle has the remote start
feature, the RKE transmitter
functions will have an increased
range of operation. However, the
range may be less while the vehicle
is running.
There are other conditions which
can affect the performance of the
transmitter. SeeRemote Keyless
Entry (RKE) System on page 2‑2 for
additional information.
/(Remote Start): This button will
be on the RKE transmitter if the
vehicle has remote start.
To start the vehicle using the remote
start feature:
1. Aim the RKE transmitter at the
vehicle.
2. Press and release
Q.
3. Immediately press and hold
/
until the turn signal lamps flash.
If you cannot see the vehicle's
lamps, press and hold
/for
two to four seconds. When the vehicle starts, the
parking lamps will turn on and
remain on while the vehicle is
running. The doors will be
locked and the climate control
system may come on.
The engine will continue to run
for 10 minutes. Repeat the steps
for a 10-minute time extension.
Remote start can be extended
only once.
After entering the vehicle during a
remote start, insert and turn the key
to ON/RUN to drive the vehicle.
To cancel a remote start:
.Aim the RKE transmitter at the
vehicle and press and hold
/
until the parking lamps turn off.
.Turn on the hazard warning
flashers.
.Turn the ignition on and then
back off. The vehicle can be remote started
two separate times between driving
sequences. The engine will run for
10 minutes after each remote start.
Or, you can extend the engine run
time by another 10 minutes within
the first 10 minute remote start time
frame, and before the engine stops.
For example, if
Qand then/are
pressed again after the vehicle has
been running for 5 minutes,
10 minutes are added, allowing the
engine to run for 15 minutes.
The additional 10 minutes are
considered a second remote vehicle
start.
Once two remote starts, or a single
remote start with one time extension
has been done, the vehicle must be
started with the key. After the key is
removed from the ignition, the
vehicle can be remote started again.

Black plate (7,1)GMC Yukon/Yukon XL Owner Manual - 2012
Keys, Doors, and Windows 2-7
The vehicle cannot be remote
started if the key is in the ignition,
the hood is not closed, or if there is
an emission control system
malfunction and the check engine
light is on.
Also, the engine will turn off during a
remote vehicle start if the coolant
temperature gets too high or if the
oil pressure gets low.
Remote Start Ready
If the vehicle does not have the
remote vehicle start feature, it may
have the remote start ready feature.
This feature allows your dealer to
add the manufacturer's remote
vehicle start feature.
See your dealer to add the
manufacturer's remote vehicle start
feature to the vehicle.
Door Locks
{WARNING
Unlocked doors can be
dangerous.
.Passengers, especially
children, can easily open the
doors and fall out of a moving
vehicle. When a door is
locked, the handle will not
open it. The chance of being
thrown out of the vehicle in a
crash is increased if the
doors are not locked. So, all
passengers should wear
safety belts properly and the
doors should be locked
whenever the vehicle is
driven.(Continued)
WARNING (Continued)
.Young children who get into
unlocked vehicles may be
unable to get out. A child can
be overcome by extreme heat
and can suffer permanent
injuries or even death from
heat stroke. Always lock the
vehicle whenever leaving it.
.Outsiders can easily enter
through an unlocked door
when you slow down or stop
the vehicle. Locking the doors
can help prevent this from
happening.
There are several ways to lock and
unlock the vehicle.
From outside, use the Remote
Keyless Entry (RKE) transmitter or
the key in the driver door.

Black plate (8,1)GMC Yukon/Yukon XL Owner Manual - 2012
2-8 Keys, Doors, and Windows
From inside, use the power door
locks or manual door locks. To lock
or unlock the door with the manual
locks, push down or pull up on the
manual lock knob.
Power Door Locks
With power door locks, the switches
on the front doors can be used to
lock and unlock the vehicle.
If available, the switches are on the
front doors.
K(Unlock):Press to unlock the
doors.
Q(Lock): Press to lock the doors.
Delayed Locking
When locking the doors with the
power lock switch and a door or the
liftgate is open, the doors will lock
five seconds after the last door is
closed. You will hear three chimes
to signal that the delayed locking
feature is in use. Pressing the power lock switch
twice will override the delayed
locking feature and immediately lock
all the doors.
This feature will not operate if the
key is in the ignition.
You can program this feature using
the Driver Information Center (DIC).
See
“Delay Door Lock” under
Vehicle Personalization (With DIC
Buttons) on page 5‑47.
Automatic Door Locks
The vehicle may have an automatic
lock/unlock feature. This feature can
be programmed using the Driver
Information Center (DIC). See
Vehicle Personalization (With DIC
Buttons) on page 5‑47 for more
information on DIC programming.
Lockout Protection
If the driver side power door lock
switch is pressed when the driver
door is open and the key is in the
ignition, all of the doors will lock and
then the driver door will unlock.
If the passenger side power door
lock switch is pressed when the
front passenger door is open and
the key is in the ignition, all of the
doors will lock and then the front
passenger door will unlock.
Safety Locks
The vehicle has rear door security
locks to prevent passengers from
opening the rear doors from the
inside.

Black plate (9,1)GMC Yukon/Yukon XL Owner Manual - 2012
Keys, Doors, and Windows 2-9
Open the rear doors to access the
security locks on the inside edge of
each door.
To set the locks, insert a key into
the slot and turn it to the horizontal
position. The door can only be
opened from the outside with the
door unlocked. To return the door to
normal operation, turn the slot to the
vertical position.
Doors
Liftgate (Manual)
{WARNING
It can be dangerous to drive with
the liftglass or liftgate open
because carbon monoxide (CO)
gas can come into your vehicle.
You cannot see or smell CO.
It can cause unconsciousness
and even death.
If you must drive with the liftglass
or liftgate open, or if electrical
wiring or other cable connections
must pass through the seal
between the body and the
liftglass or liftgate:
.Make sure all other windows
are shut.
.Turn the fan on your heating
or cooling system to its
highest speed with the(Continued)
WARNING (Continued)
recirculation mode off. That
will force outside air into your
vehicle. SeeClimate Control
Systems on page 8‑1 orDual
Automatic Climate Control
System on page 8‑4.
.If you have air outlets on or
under the instrument panel,
open them all the way.
.If your vehicle has a power
liftgate, disable the power
liftgate function.
See Engine Exhaust on
page 9‑30.
Press
Kon the Remote Keyless
Entry (RKE) transmitter or use the
power door lock switches to unlock
the liftgate. See Remote Keyless
Entry (RKE) System Operation on
page 2‑3.

Black plate (12,1)GMC Yukon/Yukon XL Owner Manual - 2012
2-12 Keys, Doors, and Windows
If the transmission is shifted out of
P (Park) while the power function is
in progress, the liftgate power
function will continue to completion.
If the transmission is shifted out of
P (Park) and the vehicle accelerates
before the power liftgate latches
closed, the liftgate may reverse to
the open position. Cargo could fall
out of the vehicle. Always make
sure the power liftgate is closed and
latched before you drive away.
If you power open the liftgate and
the liftgate support struts have lost
pressure, the lamps will flash and a
chime will sound. The liftgate will
stay open temporarily, then slowly
close. See your dealer for service
before using the liftgate.Obstacle Detection Features
If the liftgate encounters an obstacle
during a power open or close cycle,
a warning chime will sound and the
liftgate will automatically reverse
direction to the full closed or open
position. After removing the
obstruction, the power liftgate
operation can be used again.
If the liftgate encounters multiple
obstacles on the same power cycle,
the power function will deactivate,
and you must manually open or
close the liftgate. The REAR
ACCESS OPEN warning message
in the Driver Information Center
(DIC) will indicate that the liftgate
is open. After removing the
obstructions, manually open the
liftgate to the full open position or
close the liftgate to the fully closed
and latched position. The liftgate will
now resume normal power
operation.Pinch sensors are located on the
sides of the liftgate. If an object is
caught between the liftgate and the
body and presses against this
sensor, the liftgate will reverse
direction and open fully. The liftgate
will remain open until it is activated
again or closed manually. Do not
force the liftgate open or closed
during a power cycle.
Manual Operation of Power
Liftgate
To change the liftgate to manual
operation, press the switch on the
overhead console to the OFF
position.
With the power liftgate disabled and
all of the doors unlocked, the liftgate
can be manually opened and
closed.

Black plate (14,1)GMC Yukon/Yukon XL Owner Manual - 2012
2-14 Keys, Doors, and Windows
Vehicle Security
This vehicle has theft-deterrent
features; however, they do not make
it impossible to steal.
Anti-theft Alarm System
Your vehicle has a content
theft-deterrent alarm system.
This is the security light.
To arm the theft-deterrent system:
1. Open the door.
2. Lock the door with the RemoteKeyless Entry (RKE) transmitter
or the power door lock switch. The security light will come on to
inform the driver the system is
arming. If a door is open when
the doors are locked, the
security light will flash.
If the delayed locking feature is
turned on, the theft‐deterrent
system will not start the arming
process until the last door is
closed and the delay timer has
expired. See
Delayed Locking
on page 2‑8.
3. Close all doors. The security light should go off after about
30 seconds. The alarm is not
armed until the security light
goes off.
If a locked driver door is opened
without using the RKE transmitter, a
10-second pre-alarm will occur. The
horn will chirp and the lights will
flash. If the key is not placed in the
ignition and turned to START or the
door is not unlocked by pressing
the unlock button on the RKE
transmitter during the 10-second
pre-alarm, the alarm will go off. Your vehicle's headlamps will flash
and the horn will sound for about
30 seconds, then will turn off to save
the battery power.
The theft-deterrent system will not
activate if the doors are locked with
the vehicle's key or the manual door
lock. It activates only if you use the
power door lock switch with the door
open or the RKE transmitter. You
should also remember that you can
start your vehicle with the correct
ignition key if the alarm has been
set off.
To avoid setting off the alarm by
accident:.If you do not want to activate the
theft-deterrent system, the
vehicle should be locked with
the door key after the doors are
closed.
.Always unlock the doors with the
RKE transmitter. Unlocking a
door any other way will set off
the alarm if it is armed.

Black plate (15,1)GMC Yukon/Yukon XL Owner Manual - 2012
Keys, Doors, and Windows 2-15
If you set off the alarm by accident,
press unlock on the RKE transmitter
or place the key in the ignition and
turn it to START to turn off the
alarm. The alarm will not stop if you
try to unlock a door any other way.
Testing the Alarm
To test the alarm:
1. From inside the vehicle, lowerthe driver window and open the
driver door.
2. Activate the system by locking the doors with the power door
lock switch while the door is
open, or with the RKE
transmitter.
3. Get out of the vehicle, close the door and wait for the security
light to go out.
4. Then reach in through the window, unlock the door with the
manual door lock and open the
door. This should set off the
alarm. While the alarm is set, the power
door unlock switch will not work.
If the alarm does not sound when it
should but the headlamps flash,
check to see if the horn works. The
horn fuse may be blown. To replace
the fuse, see
Fuses and Circuit
Breakers on page 10‑40.
If the alarm does not sound or the
headlamps do not flash, the vehicle
should be serviced by your dealer.
Immobilizer
See Radio Frequency Statement on
page 13‑16 for information
regarding Part 15 of the Federal
Communications Commission (FCC)
rules and Industry Canada
Standards RSS-GEN/210/220/310.
Immobilizer Operation
This vehicle has PASS-Key®III+
(Personalized Automotive Security
System) theft-deterrent system.
PASS-Key III+ is a passive
theft-deterrent system.
The system is automatically armed
when the key is removed from the
ignition.
The system is automatically
disarmed when the key is turned to
ON/RUN, ACC/ACCESSORY,
or START from the LOCK/OFF
position.
You do not have to manually arm or
disarm the system.
The security light will come on if
there is a problem with arming or
disarming the theft-deterrent
system.
When the PASS-Key III+ system
senses that someone is using the
wrong key, it prevents the vehicle
from starting. Anyone using a
trial-and-error method to start the