2018 GMC YUKON XL light

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
In Brief 21
o or
p : Press to move between
the interactive display zones in the
cluster.
V : Press to open a menu or select
a menu item. Press and hold to
reset values on certain screens.
See Driver Information Center (DIC)
0 151 .
Forward Collision Alert
(FCA) System If equipped, FCA may help avoid or
reduce the harm caused by
front-end crashes. FCA provides a
green indicator,
V , when a vehicle
is detected ahead. This indicator
displays amber if you follow a
vehicle too closely. When
approaching a vehicle ahead too
quickly, FCA provides a flashing red
alert on the windshield and rapidly
beeps or pulses the driver seat.
See Forward Collision Alert (FCA)
System 0 246 . Forward Automatic
Braking (FAB) If the vehicle has Forward Collision
Alert (FCA), it also has FAB, which
includes Intelligent Brake
Assist (IBA). When the system
detects a vehicle ahead in your path
that is traveling in the same
direction that you may be about to
crash into, it can provide a boost to
braking or automatically brake the
vehicle. This can help avoid or
lessen the severity of crashes when
driving in a forward gear.
See Forward Automatic Braking
(FAB) 0 248 .
Lane Keep Assist (LKA) If equipped, LKA may help avoid
crashes due to unintentional lane
departures. It may assist by gently
turning the steering wheel if the
vehicle approaches a detected lane
marking without using a turn signal
in that direction. It may also provide
a Lane Departure Warning (LDW)
alert as the lane marking is crossed.
The system will not assist or alert if it detects that you are actively
steering. Override LKA by turning
the steering wheel. LKA uses a
camera to detect lane markings
between 60 km/h (37 mph) and
180 km/h (112 mph).
See Lane Departure Warning (LDW)
0 252 and Lane Keep Assist (LKA)
0 252 .
Lane Change Alert (LCA) If equipped, the LCA system is a
lane-changing aid that assists
drivers with avoiding lane change
crashes that occur with moving
vehicles in the side blind zone (or
spot) areas or with vehicles rapidly
approaching these areas from
behind. The LCA warning display
will light up in the corresponding
outside mirror and will flash if the
turn signal is on. The Side Blind
Zone Alert (SBZA) system is
included as part of the LCA system.
See Side Blind Zone Alert (SBZA)
0 250 and Lane Change Alert (LCA)
0 250 .

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
24 In Brief If an object is in the path of the
sunroof while it is closing, the
automatic reversal system will
detect the object and stop the
sunroof.
See Sunroof 0 58 .
Performance and
Maintenance Traction Control/
Electronic Stability
Control The vehicle has a traction control
system that limits wheel spin and
the StabiliTrak system that assists
with directional control of the vehicle
in difficult driving conditions. Both
systems come on automatically
when the vehicle is started and
begins to move.
.
To turn off traction control, press
and release
g on the instrument
panel to the left of the steering
wheel. The traction off light
idisplays in the instrument
cluster. The appropriate DIC
message displays.
.
To turn off both traction control
and StabiliTrak, press and hold
g until
i and
g illuminate in the
instrument cluster and the
appropriate DIC message
displays. .
Press and release
g again to
turn on both systems.
StabiliTrak will automatically turn on
if the vehicle exceeds 56 km/h
(35 mph). Traction control will
remain off.
See Traction Control/Electronic
Stability Control 0 229 .
Tire Pressure Monitor This vehicle may have a Tire
Pressure Monitor System (TPMS).
The low tire pressure warning light
alerts to a significant loss in
pressure of one of the vehicle's
tires. If the warning light comes on,
stop as soon as possible and inflate
the tires to the recommended
pressure shown on the Tire and

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
In Brief 25Loading Information label. See
Vehicle Load Limits 0 200 . The
warning light will remain on until the
tire pressure is corrected.
The low tire pressure warning light
may come on in cool weather when
the vehicle is first started, and then
turn off as the vehicle is driven. This
may be an early indicator that the
tire pressures are getting low and
the tires need to be inflated to the
proper pressure.
The TPMS does not replace normal
monthly tire maintenance. Maintain
the correct tire pressures.
See Tire Pressure Monitor System
0 329 .
Tire Fill Alert (If Equipped)
This feature provides visual and
audible alerts outside the vehicle to
help when inflating an underinflated
tire to the recommended cold tire
pressure. See “ Tire Fill Alert (If
Equipped) ” under Tire Pressure
Monitor Operation 0 330 . Fuel (L83 5.3L V8 Engine) Regular Fuel
Use only unleaded gasoline rated
87 octane or higher in your vehicle.
Do not use gasoline with an octane
rating lower as it may result in
vehicle damage and lower fuel
economy. See Fuel 0 254 .
Fuel (L86 6.2L V8 Engine)
Premium Recommended Fuel
Use premium 93 octane unleaded
gasoline in your vehicle. Unleaded
gasoline with an octane rating as low as 87 may be used, but it will
reduce performance and fuel
economy. See Fuel 0 254 .
E85 or FlexFuel
FlexFuel Possible
Certain models are compatible with
E85 fuel. See E85 or FlexFuel
0 256 .
Engine Oil Life System The engine oil life system calculates
engine oil life based on vehicle use
and displays a DIC message when
it is necessary to change the engine
oil and filter. The oil life system
should be reset to 100% only
following an oil change.

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 43This can be manually overridden by
pressing and holding
Q on the
power door lock switch.
Keyless Access : When locking is
requested with the driver door open
and the vehicle is on or in ACC/
ACCESSORY, all the doors will lock
and then the driver door will unlock.
If the vehicle is off and locking is
requested while a door is open,
when all doors are closed the
vehicle will check for RKE
transmitters inside. If an RKE
transmitter is detected and the
number of RKE transmitters inside
has not reduced, the driver door will
unlock and the horn will sound three
times.
This can be manually overridden by
pressing and holding
Q on the
power door lock switch.
Unlocked Door Anti-Lockout
If Unlocked Door Anti-Lockout is
turned on and the vehicle is off, the
driver door is open, and locking is
requested, all the doors will lock and
the driver door will remain open.
Press the button again to lock the driver door. The Unlocked Door
Anti-Lockout feature can be turned
on or off. See Vehicle
Personalization 0 158 .
Safety Locks The rear door safety locks prevent
passengers from opening the rear
doors from inside the vehicle.
Press
{ to activate the safety locks
on the rear doors. The indicator light
comes on when activated.
Press
{ again to deactivate the
safety locks. Doors Liftgate
{ WarningExhaust gases can enter the
vehicle if it is driven with the
liftgate or trunk/hatch open,
or with any objects that pass
through the seal between the
body and the trunk/hatch or
liftgate. Engine exhaust contains
carbon monoxide (CO) which
cannot be seen or smelled. It can
cause unconsciousness and even
death.
If the vehicle must be driven with
the liftgate or trunk/hatch open:
.
Close all of the windows.
.
Fully open the air outlets on
or under the instrument
panel.
.
Adjust the climate control
system to a setting that
brings in only outside air
(Continued)

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
Keys, Doors, and Windows 47sensor, the liftgate will reverse
direction and stop at a partially open
position. The liftgate will remain
open until it is activated again or
closed manually.
Setting the 3/4 Mode To change the position the liftgate
stops at when opening:
1. Select MAX or 3/4 mode and
open the liftgate.
2. Stop the liftgate movement at
the desired height by pressing
any liftgate button. Manually
adjust the liftgate position if
needed.
3. Press and hold
l on the
bottom edge of the liftgate next
to the latch on the outside of
the liftgate until the turn signals
flash and a beep sounds. This
indicates the setting has been
recorded.
The liftgate cannot be set below a
minimum programmable height.
If there is no light flash or sound,
then the height adjustment may be
too low. Manual Operation Select OFF to manually operate the
liftgate. See “ Manual Liftgate ” at the
beginning of this section.
CautionAttempting to move the liftgate
too quickly and with excessive
force may result in damage to the
vehicle.
Operate the liftgate manually with a
smooth motion and moderate
speed. The system includes a
feature which limits the manual
closing speed to protect the
components.
Hands-Free Operation If equipped with Hands-Free Vehicle
Access, the liftgate may be
operated with a kicking motion
under the rear bumper.
The liftgate will not operate if the
RKE transmitter is not within
1 m (3 ft). The hands-free feature will not work
while the liftgate is moving. To stop
the liftgate while in motion use one
of the liftgate switches.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
48 Keys, Doors, and Windows
Length of Kick Zone
To operate, move your foot in a
forward kicking motion under the
center of the rear bumper, then pull
it back. CautionSplashing water may cause the
liftgate to open. Keep the RKE
transmitter away from the rear
bumper detection area or turn the
liftgate mode to OFF when
cleaning or working near the rear
bumper to avoid accidental
opening.
.
Do not sweep your foot side
to side.
.
Do not keep your foot under the
bumper; the liftgate will not
activate.
.
Do not touch the liftgate until it
has stopped moving.
.
This feature may be temporarily
disabled under some conditions.
If the liftgate does not respond to
the kick, open or close the
liftgate by another method or
start the vehicle. The feature will
be re-enabled. When closing the liftgate using this
feature, there will be a short delay.
The rear lights will flash and a
chime will sound. Step away from
the liftgate before it starts moving.
Power Assist Steps
{ WarningNever place hands or other body
parts between the deployed
power assist steps and the
vehicle. You or others could be
seriously injured.
{ Warning
Never step on a moving assist
step. You or others could be
seriously injured.
Disable the power assist steps
before jacking or placing any object
under the vehicle. Too much ice
buildup may prevent deployment of
the power assist steps. Check the
step position before exiting the