climate control GMC YUKON XL 2018 Owners Manual

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
Contents Introduction . . . . . . . . . . . . . . . . . . . . . . 2
In Brief . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Keys, Doors, and Windows . . . . . 27
Seats and Restraints . . . . . . . . . . . 60
Storage . . . . . . . . . . . . . . . . . . . . . . . 118
Instruments and Controls . . . . . . 122
Lighting . . . . . . . . . . . . . . . . . . . . . . . 170
Infotainment System . . . . . . . . . . 179
Climate Controls . . . . . . . . . . . . . . 180
Driving and Operating . . . . . . . . . 188
Vehicle Care . . . . . . . . . . . . . . . . . . 276
Service and Maintenance . . . . . 369
Technical Data . . . . . . . . . . . . . . . . 383
Customer Information . . . . . . . . . 386
Reporting Safety Defects . . . . . . 396
OnStar . . . . . . . . . . . . . . . . . . . . . . . . 400
Index . . . . . . . . . . . . . . . . . . . . 412

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
In Brief 5
In Brief Instrument Panel Instrument Panel . . . . . . . . . . . . . . . . 6
Initial Drive Information Initial Drive Information . . . . . . . . . . 8
Remote Keyless Entry (RKE)
System . . . . . . . . . . . . . . . . . . . . . . . . 8
Remote Vehicle Start . . . . . . . . . . . 9
Door Locks . . . . . . . . . . . . . . . . . . . . . 9
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . 10
Windows . . . . . . . . . . . . . . . . . . . . . . . 11
Seat Adjustment . . . . . . . . . . . . . . . 11
Memory Features . . . . . . . . . . . . . . 12
Second Row Seats . . . . . . . . . . . . 12
Third Row Seats . . . . . . . . . . . . . . . 13
Heated and Ventilated Seats . . . 13
Head Restraint Adjustment . . . . 13
Seat Belts . . . . . . . . . . . . . . . . . . . . . 13
Passenger Sensing System . . . 14
Mirror Adjustment . . . . . . . . . . . . . . 14
Steering Wheel Adjustment . . . . 15
Throttle and Brake Pedal
Adjustment . . . . . . . . . . . . . . . . . . . 15
Interior Lighting . . . . . . . . . . . . . . . . 16
Exterior Lighting . . . . . . . . . . . . . . . 16
Windshield Wiper/Washer . . . . . . 17
Climate Controls . . . . . . . . . . . . . . . 18
Transmission . . . . . . . . . . . . . . . . . . 18 Four-Wheel Drive . . . . . . . . . . . . . . 19
Vehicle Features Infotainment System . . . . . . . . . . . 20
Steering Wheel Controls . . . . . . . 20
Cruise Control . . . . . . . . . . . . . . . . . 20
Driver Information
Center (DIC) . . . . . . . . . . . . . . . . . 20
Forward Collision Alert (FCA)
System . . . . . . . . . . . . . . . . . . . . . . . 21
Forward Automatic
Braking (FAB) . . . . . . . . . . . . . . . . 21
Lane Keep Assist (LKA) . . . . . . . 21
Lane Change Alert (LCA) . . . . . . 21
Rear Vision Camera (RVC) . . . . 22
Rear Cross Traffic Alert (RCTA)
System . . . . . . . . . . . . . . . . . . . . . . . 22
Parking Assist . . . . . . . . . . . . . . . . . 22
Power Outlets . . . . . . . . . . . . . . . . . 22
Universal Remote System . . . . . 23
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . 23
Performance and Maintenance Traction Control/Electronic
Stability Control . . . . . . . . . . . . . . 24
Tire Pressure Monitor . . . . . . . . . . 24
Fuel (L83 5.3L V8 Engine) . . . . . 25
Fuel (L86 6.2L V8 Engine) . . . . . 25
E85 or FlexFuel . . . . . . . . . . . . . . . . 25
Engine Oil Life System . . . . . . . . 25 Driving for Better Fuel
Economy . . . . . . . . . . . . . . . . . . . . . 26
Roadside Assistance
Program . . . . . . . . . . . . . . . . . . . . . . 26

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
In Brief 71. Air Vents 0 185 .
2. Head-Up Display (HUD) 0 154
(If Equipped).
3.
g Traction Control/Electronic
Stability Control 0 229 .
j Power Assist Steps 0 48 (If
Equipped).
X Parking Assist Button (If
Equipped). See Assistance
Systems for Parking or Backing
0 243 .
A Lane Departure Warning
(LDW) 0 252 (If Equipped).
0 Pedal Adjust Switch (If
Equipped). See Adjustable
Throttle and Brake Pedal
0 205 .
4. Turn Signal Lever. See Turn
and Lane-Change Signals
0 174 .
Windshield Wiper/Washer
0 123 . 5. Favorite Switches (Out of
View). See “ Steering Wheel
Controls ” in the infotainment
manual.
Volume Switches (Out of View).
See “ Steering Wheel Controls ”
in the infotainment manual.
6. Hazard Warning Flashers
0 174 .
7. Instrument Cluster 0 133 .
8. Shift Lever. See Automatic
Transmission 0 216 .
Tow/Haul Selector Button. See
Tow/Haul Mode 0 222 .
Range Selection Mode (If
Equipped). See Manual Mode
0 218 .
9. Light Sensor. See Automatic
Headlamp System 0 173 .
10. Infotainment 0 179 .
11. Dual Automatic Climate Control
System 0 180 .
12. Heated and Ventilated Front
Seats 0 67 . 13. Rear Climate Control Buttons.
See Rear Climate Control
System 0 184 .
14. Ignition Positions (Key Access)
0 207 or Ignition Positions
(Keyless Access) 0 205 .
15. Steering Wheel Controls. See
the infotainment manual.
16. Horn 0 123 .
17. Steering Wheel Adjustment
0 123 .
18. Hood Release. See Hood
0 279 .
19. Cruise Control 0 233 .
Adaptive Cruise Control 0 235
(If Equipped).
Forward Collision Alert (FCA)
System 0 246 (If Equipped).
Heated Steering Wheel 0 123 .
20. Trailer Brake Control Panel (If
Equipped). See Towing
Equipment 0 267 .
21. Data Link Connector (DLC)
(Out of View). See Malfunction
Indicator Lamp (Check Engine
Light) 0 143 .

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
In Brief 13See Second Row Seats 0 69 .
Third Row Seats Third row seatbacks can be folded.
See Third Row Seats 0 74 .
Heated and Ventilated
Seats
The buttons are on the center stack
below the climate control system. To
operate, the engine must be
running.
Press
I to heat the driver or
passenger seatback only. Press
J to heat the driver or
passenger seat cushion and
seatback.
Press
C to ventilate the driver or
passenger seat.
See Heated and Ventilated Front
Seats 0 67 .
Head Restraint
Adjustment Do not drive until the head restraints
for all occupants are installed and
adjusted properly.
To achieve a comfortable seating
position, change the seatback
recline angle as little as necessary
while keeping the seat and the head
restraint height in the proper
position.
See Head Restraints 0 61 and
Power Seat Adjustment 0 62 .Seat Belts
Refer to the following sections for
important information on how to use
seat belts properly:
.
Seat Belts 0 76 .
.
How to Wear Seat Belts Properly
0 77 .
.
Lap-Shoulder Belt 0 78 .
.
Lower Anchors and Tethers for
Children (LATCH System) 0 104 .

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
18 In Brief
Climate Controls This system controls the heating,
cooling, and ventilation.
1. Driver Temperature Control
2. A/C (Air Conditioning)
3. Air Delivery Mode Controls
4. Fan Control
5. Defrost
6. Passenger Temperature
Control
7. SYNC (Synchronized
Temperature)
8. Rear Window Defogger 9. RCTRL (Rear Climate Control
Lockout)
10. Rear Temperature Control
11. Rear Air Delivery Mode Control
12. Rear Fan Control
13. Front Climate Control Power
Button
14. Rear AUTO (Automatic
Operation)
15. Rear Climate Control Power
Button
16. Air Recirculation
17. AUTO (Automatic Operation)
See Dual Automatic Climate Control
System 0 180 and Rear Climate
Control System 0 184 (if equipped).Transmission Range Selection Mode
The Range Selection Mode switch,
if equipped, is on the shift lever.
1. To enable the Range Selection
feature, move the shift lever to
the L (Manual Mode) position.
The current range will appear
next to the L. This is the
highest attainable range with
all lower gears accessible. As
an example, when 5 (Fifth)
gear is selected, 1 (First)
through 5 (Fifth) gears are
available.
2. Press the plus/minus buttons
on the shift lever to select the
desired range of gears for
current driving conditions. See
Manual Mode 0 218 .

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
22 In Brief
Rear Vision
Camera (RVC) If equipped, RVC shows a view of
the area behind the vehicle on the
infotainment display when the
vehicle is shifted into R (Reverse) to
aid with parking and low-speed
backing maneuvers.
See Assistance Systems for Parking
or Backing 0 243 .
Rear Cross Traffic Alert
(RCTA) System If equipped, the RCTA system uses
a triangle with an arrow on the
infotainment display to warn of
traffic behind your vehicle that may
cross your vehicle's path while in
R (Reverse). In addition, beeps will
sound, or the driver seat will pulse.
See Assistance Systems for Parking
or Backing 0 243 .
Parking Assist If equipped, Rear Parking
Assist (RPA) uses sensors on the
rear bumper to assist with parking and avoiding objects while in
R (Reverse). It operates at speeds
less than 8 km/h (5 mph). RPA may
show a warning triangle on the
infotainment display and a graphic
on the instrument cluster to provide
the object distance. In addition,
multiple beeps or seat pulses may
occur if very close to an object.
The vehicle may also have the Front
Parking Assist system.
See Assistance Systems for Parking
or Backing 0 243 .
Power Outlets Power Outlets 12-Volt Direct
Current Accessory power outlets can be
used to plug in electrical equipment,
such as a cell phone, MP3
player, etc.
The vehicle may have up to five
accessory power outlets:
Vehicles with a Center Console
.
One in front of the cupholders on
the center console .
One inside the center storage
console
.
One on the rear of the center
storage console
.
One in the third row seat on the
driver side
.
One in the rear cargo area on
the passenger side
Vehicles with Bench Seats
.
One on the center stack below
the climate control system
.
One in the storage area on the
bench seat
.
One on the rear of the center
armrest storage
.
One in the third row seat area on
the driver side
.
One in the rear cargo area on
the passenger side
Lift the cover to access and replace
when not in use.
See Power Outlets 0 127 .

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.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-11349262) - 2018 - crc - 6/20/17
40 Keys, Doors, and Windows The rear defog and heated and
ventilated seats may also come on.
See Heated and Ventilated Front
Seats 0 67 and Vehicle
Personalization 0 158 .
Laws in some communities may
restrict the use of remote starters.
Check local regulations for any
requirements on remote starting of
vehicles.
Do not use remote start if the
vehicle is low on fuel.
The vehicle cannot be remote
started if:
.
The key is in the ignition (Key
Access) or the RKE transmitter
is in the vehicle (Keyless
Access).
.
The hood is not closed.
.
There is an emission control
system malfunction and the
malfunction indicator lamp is on.
The engine will turn off during a
remote vehicle start if:
.
The coolant temperature gets
too high.
.
The oil pressure gets low. The RKE transmitter range may be
reduced while the vehicle is running.
Other conditions can affect the
performance of the transmitter.
See Remote Keyless Entry (RKE)
System 0 31 or Vehicle
Personalization 0 158 .
Starting the Engine Using Remote
Start
1. Press and release
Q .
2. Immediately press and hold
/until the turn signal lamps flash
or for at least four seconds.
When the vehicle starts, the
parking lamps will turn on. The
doors will be locked and the
climate control system may
come on.
The engine will continue to run
for 10 minutes. Repeat
Steps 1 and 2 for a 10-minute
time extension.
Turn the ignition on to operate the
vehicle. Extending Engine Run Time
The engine run time can be
extended by 10 minutes, for a total
of 20 minutes, if during the first
10 minutes Steps 1 and 2 are
repeated while the engine is still
running. An extension can be
requested, 30 seconds after
starting.
A maximum of two remote starts,
or a single start with an extension,
is allowed between ignition cycles.
The vehicle's ignition must be
turned on and then back off to use
remote start again.
Canceling a Remote Start
To cancel a remote start, do one of
the following:
.
Press and hold
/ until the
parking lamps turn off.
.
Turn on the hazard warning
flashers.
.
Turn the ignition on and then 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
44 Keys, Doors, and Windows Warning (Continued) and set the fan speed to the
highest setting. See
“ Climate Control Systems ”
in the Index.
.
If the vehicle is equipped
with a power liftgate, disable
the power liftgate function.
See Engine Exhaust 0 215 .
CautionTo avoid damage to the liftgate or
liftgate glass, make sure the area
above and behind the liftgate is
clear before opening it. Manual Liftgate
To open the liftgate, press
K on the
power door lock switch or press
Kon the RKE transmitter twice to
unlock all doors. Press the touch
pad (1) on the underside of the
liftgate handle and lift up.
Press the button (2) above the
license plate to open the liftglass,
or press
c twice quickly on the
RKE transmitter. Do not leave the
liftglass open when raising the
liftgate. There will be a delay in the release
of the liftglass if there is an attempt
to open it while the rear wiper is in
motion.
Use the pull cup to lower and close
the liftgate. Do not press the touch
pad while closing the liftgate. This
will cause the liftgate to be
unlatched.
If equipped with Keyless Access,
the RKE transmitter must be within
1 m (3 ft) of the liftgate to
automatically unlock it.
See Remote Keyless Entry (RKE)
System Operation (Key Access)
0 31 or Remote Keyless Entry
(RKE) System Operation (Keyless
Access) 0 33 .
The liftgate has an electric latch.
If the battery is disconnected or has
low voltage, the liftgate will not
open. The liftgate will resume
operation when the battery is
reconnected and charged.