2018 GMC YUKON XL engine

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
Keys, Doors, and Windows 29
{ WarningIf the key is unintentionally
rotated while the vehicle is
running, the ignition could be
moved out of the RUN position.
This could be caused by heavy
items hanging from the key ring,
or by large or long items attached
to the key ring that could be
contacted by the driver or
steering wheel. If the ignition
moves out of the RUN position,
the engine will shut off, braking
and steering power assist may be
(Continued) Warning (Continued) impacted, and airbags may not
deploy. To reduce the risk of
unintentional rotation of the
ignition key, do not change the
way the ignition key and Remote
Keyless Entry (RKE) transmitter,
if equipped, are connected to the
provided key rings.
The ignition key and key rings, and
RKE transmitter, if equipped, are
designed to work together as a
system to reduce the risk of
unintentionally moving the key out
of the RUN position. The ignition
key has a small hole to allow
attachment of the provided key ring.
It is important that any replacement
ignition keys have a small hole. See
your dealer if a replacement key is
required.
The combination and size of the
rings that came with your keys were
specifically selected for your
vehicle. The rings are connected to
the key like two links of a chain to
reduce the risk of unintentionally moving the key out of the RUN
position. Do not add any additional
items to the ring attached to the
ignition key. Attach additional items
only to the second ring, and limit
added items to a few essential keys
or small, light items no larger than
an RKE transmitter.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
30 Keys, Doors, and Windows
Interference from radio-frequency
identification (RFID) tags may
prevent the key from starting the
vehicle. Keep RFID tags away from
the key when starting the vehicle.
The key is used for the driver door,
ignition, and glove box.
If equipped with memory seats,
keys 1 and 2 are linked to seating
positions of memory 1 or 2. See
Memory Seats 0 64 .
Programming Keys to the
Vehicle
Follow these procedures to program
up to eight keys to the vehicle. Programming with Two
Recognized Keys (Key
Vehicles Only)
To program a new key:
1. Insert the original, already
programmed key in the ignition
and turn the ignition on without
starting the engine.
2. Turn the ignition off and
remove the key.
3. Quickly, within five seconds,
insert the second original
already programmed key in the
ignition and turn the ignition on
without starting the engine.
4. Turn the ignition off and
remove the key.
5. Insert the new key to be
programmed, and within
five seconds, turn the ignition
on without starting the engine.
The security light will turn off
once the key has been
programmed.
6. Repeat Steps 1 – 5 if additional
keys are to be programmed. If a key is lost or damaged, see your
dealer to have a new key made.
Programming without Recognized
Keys (Key Vehicles Only)
Program a new key to the vehicle
when a recognized key is not
available. Canadian regulations
require that Canadian owners see
their dealer.
If two currently recognized keys are
not available, follow this procedure
to program the first key.
This procedure will take
approximately 30 minutes to
complete for the first key. The
vehicle must be off and all of the
keys must be with you.
1. Insert the new vehicle key into
the ignition.
2. Turn the ignition on without
starting the engine. The
security light will come on.
3. Wait 10 minutes until the
security light turns off.
4. Turn the ignition off.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
Keys, Doors, and Windows 315. Repeat Steps 2 – 4 two more
times. After the third time, turn
the ignition on; the key is
learned and all previously
known keys will no longer work
with the vehicle.
6. To learn the second key, turn
the ignition off, insert the
second key to be learned, and
turn the ignition on without
starting the engine.
After the two keys are learned,
remaining keys can be learned by
following the procedure in
“ Programming with Two Recognized
Keys (Key Vehicles Only). ”
The key has a bar-coded key tag
that the dealer or qualified locksmith
can use to make new keys. Store
this information in a safe place, not
in the vehicle.
See your dealer if a replacement
key or additional key is needed.
If it becomes difficult to turn a key,
inspect the key blade for debris.
Periodically clean with a brush
or pick. If locked out of the vehicle, see
Roadside Assistance Program
0 390 .
With an active OnStar service plan,
an OnStar Advisor may remotely
unlock the vehicle. See OnStar
Overview 0 400 .
Remote Keyless Entry
(RKE) System See Radio Frequency Statement
0 396 .
If there is a decrease in the Remote
Keyless Entry (RKE) operating
range:
.
Check the distance. The
transmitter may be too far from
the vehicle.
.
Check the location. Other
vehicles or objects may be
blocking the signal.
.
Check the transmitter's battery.
See “ Battery Replacement ” later
in this section. .
If the transmitter is still not
working correctly, see your
dealer or a qualified technician
for service.
Remote Keyless Entry
(RKE) System Operation
(Key Access) The RKE transmitter functions may
work up to 60 m (197 ft) away from
the vehicle.
Other conditions can affect the
performance of the transmitter. See
Remote Keyless Entry (RKE)
System 0 31 .

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
32 Keys, Doors, and Windows
/ : Press and release
Q , then
immediately press and hold
/ until
the turn signal lamps flash or for at
least four seconds. The engine may
be started from outside the vehicle
using the RKE transmitter. See
Remote Vehicle Start 0 39 .
Q : Press to lock all doors.
If enabled, the turn signal lamps
flash once to indicate locking has
occurred. If enabled, the horn chirps
when
Q is pressed again within
three seconds. See Vehicle
Personalization 0 158 .
Pressing
Q arms the alarm system.
See Vehicle Alarm System 0 49 .
If equipped with auto mirror folding,
pressing and holding
Q for
one second will fold the mirrors,
if enabled. See Vehicle
Personalization 0 158 .
K : Press once to unlock only the
driver door. If
K 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, the turn signal lamps
flash twice to indicate unlocking has
occurred. If enabled, the exterior
lamps may turn on. See Vehicle
Personalization 0 158 .
Pressing
K on the RKE transmitter
disarms the alarm system. See
Vehicle Alarm System 0 49 .
If equipped with auto mirror folding,
pressing and holding
K for
one second will unfold the mirrors,
if enabled. See Vehicle
Personalization 0 158 .
Press and hold
K until the windows
fully open, if enabled. See Vehicle
Personalization 0 158 .
b : Press twice to open or close
the liftgate. Press once to stop the
liftgate from moving.
c : Press twice to open the
liftglass. 7 : Press and release to initiate the
vehicle locator. The turn signal
lamps flash and the horn sounds
three times.
Press and hold
7 for more than
three 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 turned on or
7is pressed again. The ignition must
be 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.
Each vehicle can have up to
eight transmitters programmed to it.
See your dealer for transmitter
programming.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
34 Keys, Doors, and Windows
/ : Press and release
Q , then
immediately press and hold
/ until
the turn signal lamps flash or for at
least four seconds. The engine may
be started from outside the vehicle
using the RKE transmitter. See
Remote Vehicle Start 0 39 .
Q : Press to lock all doors.
If enabled, the turn signal lamps
flash once on the second press to
indicate locking has occurred.
If enabled, the horn chirps when
Qis pressed again within
three seconds. See Vehicle
Personalization 0 158 .
If the driver door is open when
Q is
pressed, all doors will lock and then
the driver door will immediately
unlock, if enabled. See Vehicle
Personalization 0 158 .
If the passenger door is open when
Q is pressed, all doors lock.
Pressing
Q arms the alarm system.
See Vehicle Alarm System 0 49 . If equipped with auto mirror folding,
pressing and holding
Q for
one second will fold the mirrors,
if enabled. See Vehicle
Personalization 0 158 .
K : Press once to unlock only the
driver door. If
K 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, the turn signal lamps
flash twice to indicate unlocking has
occurred. If enabled, the exterior
lamps may turn on. See Vehicle
Personalization 0 158 .
Pressing
K on the RKE transmitter
disarms the alarm system. See
Vehicle Alarm System 0 49 .
If equipped with auto mirror folding,
pressing and holding
K for
one second will unfold the mirrors,
if enabled. See Vehicle
Personalization 0 158 . Press and hold
K until the windows
fully open, if remote window
operation is enabled. See Vehicle
Personalization 0 158 .
b : Press twice to open or close
the liftgate. Press once to stop the
liftgate from moving.
c : Press twice to open the
liftglass.
7 : Press and release to initiate
vehicle locate. The turn signal
lamps flash and the horn sounds
three times.
Press and hold
7 for more than
three 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 turned on or
7is pressed again. The ignition must
be off for the panic alarm to work.
Keyless Access Operation
The Keyless Access system allows
for doors and the liftgate to be
accessed without pressing the RKE
transmitter button. The RKE
transmitter must be within 1 m (3 ft)

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
Keys, Doors, and Windows 371. Remove the key from the
recognized transmitter.
2. Place the two recognized
transmitters in the cupholder or
on the passenger seat.
3. Insert the vehicle key into the
key lock cylinder on the driver
door handle. Then turn the key
counterclockwise, to the unlock
position, five times within
10 seconds.
The Driver Information Center
(DIC) displays READY FOR
REMOTE#2, 3, 4, ETC.
4. Place the new transmitter in
the transmitter pocket/insert. Open the center console
storage area and the storage
tray. The transmitter pocket/
insert is in front of the storage
area next to the center console
storage area between the
driver and front passenger
seats.
5. Press ENGINE START/STOP.
When the transmitter is
learned, the DIC display will
show that it is ready to program
the next transmitter.
6. Remove the transmitter from
the transmitter pocket and
press
K or
Q on the
transmitter.
To program additional
transmitters, repeat Steps 4 – 6.
When all additional transmitters
are programmed, press and
hold ENGINE START/STOP for
approximately 12 seconds to
exit programming mode.
7. Return the key back into the
transmitter. Programming without Two
Recognized Transmitters (Keyless
Access Vehicles Only)
If two currently recognized
transmitters are not available, follow
this procedure to program up to
eight transmitters. This feature is
not available in Canada. This
procedure will take approximately
30 minutes to complete. The vehicle
must be off and all transmitters to
be programmed must be with you.
1. Remove the vehicle key from
the transmitter.
2. Insert the vehicle key into the
key lock cylinder on the driver
door handle; then turn the key
counterclockwise, to the unlock
position, five times within
10 seconds.
The Driver Information Center
(DIC) displays REMOTE
LEARN PENDING,
PLEASE WAIT.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
38 Keys, Doors, and Windows 3. Wait for 10 minutes until the
DIC displays PRESS ENGINE
START BUTTON TO LEARN,
then press ENGINE
START/STOP.
The DIC will again display
REMOTE LEARN PENDING,
PLEASE WAIT.
4. Repeat Step 3 two additional
times. After the third time all
previously known transmitters
will no longer work with the
vehicle. Remaining transmitters
can be relearned during the
next steps.
The DIC display should now
show READY FOR REMOTE
# 1. 5. Place the new transmitter in
the transmitter pocket/insert.
Open the center console
storage area and the storage
tray. The transmitter pocket/
insert is in front of the storage
area next to the center console
storage area between the
driver and front passenger
seats.
6. Press ENGINE START/STOP.
When the transmitter is
learned, the DIC display will
show that it is ready to program
the next transmitter. 7. Remove the transmitter from
the transmitter pocket/insert
and press
K or
Q on the
transmitter.
To program additional
transmitters, repeat Steps 5 – 7.
When all additional transmitters
are programmed, press and
hold ENGINE START/STOP for
approximately 12 seconds to
exit programming mode.
8. Return the key back into the
transmitter.
Starting the Vehicle with a Low
Transmitter Battery If the transmitter battery is weak or if
there is interference with the signal,
the DIC may display NO REMOTE
DETECTED or NO REMOTE KEY
WAS DETECTED PLACE KEY IN
TRANSMITTER POCKET THEN
START YOUR VEHICLE when
starting the vehicle.
To start the vehicle:
1. Open the center console
storage area and the
storage tray.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
Keys, Doors, and Windows 39
2. Place the transmitter in the
transmitter pocket/insert.
3. With the vehicle in P (Park) or
N (Neutral) press the brake
pedal and ENGINE
START/STOP.
Replace the transmitter battery
as soon as possible.
Battery Replacement
Replace the battery in the
transmitter soon if the REPLACE
BATTERY IN REMOTE KEY
message displays in the DIC. CautionWhen replacing the battery, do
not touch any of the circuitry on
the transmitter. Static from your
body could damage the
transmitter.
To replace the battery:
1. With the key removed, insert a
flat, thin object in the center of
the transmitter to separate and
remove the back cover. 2. Lift the battery with a flat
object.
3. Remove the battery.
4. Insert the new battery, positive
side toward the back cover.
Replace with a CR2032 or
equivalent battery.
5. Push together the transmitter.
Remote Vehicle Start The climate control system will
come on when the vehicle is started
remotely depending on the outside
temperature.