ECU GMC YUKON 2019 Repair Manual

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-12460267) - 2019 - crc - 9/11/18
426 OnStar
Press=to:
. Open the OnStar app on the
infotainment display. See the
infotainment manual for
information on how to use the
OnStar app.
Or
. Make a call, end a call,
or answer an incoming call.
. Give OnStar Hands-Free Calling
voice commands.
. Give OnStar Turn-by-Turn
Navigation voice commands.
. Obtain and customize the Wi-Fi
hotspot name or SSID and
password, if equipped. PressQto connect to an
Advisor to:
. Verify account information or
update contact information.
. Get driving directions.
. Receive a Diagnostic check of
the vehicle's key operating
systems.
. Receive Roadside Assistance.
. Manage Wi-Fi Settings,
if equipped.
Press
>to get a priority connection
to an OnStar Advisor available 24/
7 to:
. Get help for an emergency.
. Be a Good Samaritan or
respond to an AMBER Alert.
. Get assistance in severe
weather or other crisis situations
and find evacuation routes.
OnStar Services
Emergency
Emergency Services require an
active safety and security plan. With
Automatic Crash Response, built-in
sensors can automatically alert a
specially trained OnStar Advisor
who is immediately connected in to
the vehicle to help.
Press
>for a priority connection to
an OnStar Advisor who can contact
emergency service providers, direct
them to your exact location, and
relay important information.
With OnStar Crisis Assist, specially
trained Advisors are available
24 hours a day, 7 days a week, to
provide a central point of contact,
assistance, and information during a
crisis.
With Roadside Assistance, Advisors
can locate a nearby service provider
to help with a flat tire, a battery
jump, or an empty gas tank.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-12460267) - 2019 - crc - 9/11/18
OnStar 427
Security
If equipped, OnStar provides these
services:
.With Stolen Vehicle Assistance,
OnStar Advisors can use GPS to
pinpoint the vehicle and help
authorities quickly recover it.
. With Remote Ignition Block,
if equipped, OnStar can block
the engine from being restarted.
. With Stolen Vehicle Slowdown,
if equipped, OnStar can work
with law enforcement to
gradually slow the vehicle down.
Theft Alarm Notification
If equipped, if the doors are locked
and the vehicle alarm sounds, a
notification by text, e-mail, or phone
call will be sent. If the vehicle is
stolen, an OnStar Advisor can work
with authorities to recover the
vehicle.
OnStar Additional
Information
In-Vehicle Audio Messages
Audio messages may play important
information at the following times:
.Prior to vehicle purchase.
Press
Qto set up an account.
. After change in ownership and
at 90 days.
Transferring Service
PressQto request account transfer
eligibility information. The Advisor
can cancel or change account
information.
Selling/Transferring the
Vehicle
Call 1-888-4ONSTAR
(1-888-466-7827) immediately to
terminate your OnStar or connected
services if the vehicle is disposed
of, sold, transferred, or if the
lease ends.
Reactivation for Subsequent
Owners
PressQand follow the prompts to
speak to an Advisor as soon as
possible. The Advisor will update
vehicle records and explain OnStar
or connected service options.
How OnStar Service Works
Automatic Crash Response,
Emergency Services, Crisis Assist,
Stolen Vehicle Assistance, Remote
Services, Roadside Assistance, and
Hands-Free Calling are available on
most vehicles. Not all OnStar
services are available everywhere
or on all vehicles. For more
information, a full description of
OnStar services, system limitations,
and OnStar User Terms, Privacy
Statement, and Software Terms:
. Call 1-888-4ONSTAR
(1-888-466-7827).
. See www.onstar.com (U.S.).
. See www.onstar.ca (Canada).
. Call TTY 1-877-248-2080.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-12460267) - 2019 - crc - 9/11/18
430 OnStar
security, or the operation of the
vehicle or the vehicle systems.
Software updates or changes may
affect or erase data or settings that
are stored in the vehicle, such as
OnStar Hands-Free Calling name
tags, saved navigation destinations,
or pre-set radio stations. Neither
OnStar nor GM is responsible for
any affected or erased data or
settings. These updates or changes
may also collect personal
information. Such collection is
described in the OnStar privacy
statement or separately disclosed at
the time of installation. These
updates or changes may also cause
a system to automatically
communicate with GM servers to
collect information about vehicle
system status, identify whether
updates or changes are available,
or deliver updates or changes. An
active OnStar agreement constitutes
consent to these software updates
or changes and agreement that
either OnStar or GM may remotely
deliver them to the vehicle.Privacy
The complete OnStar Privacy
Statement may be found at
www.onstar.com (U.S.),
or www.onstar.ca (Canada). We
recommend that you review it. If you
have any questions, call
1-888-4ONSTAR (1-888-466-7827)
or press
Qto speak with an
Advisor. Users of wireless
communications are cautioned that
the privacy of any information sent
via wireless cellular communications
cannot be assured. Third parties
may unlawfully intercept or access
transmissions and private
communications without consent.
OnStar - Software
Acknowledgements
Certain OnStar components include
libcurl and unzip software and other
third party software. Below are the
notices and licenses associated with
libcurl and unzip and for other third
party software please see http://
opensource.lge.com/index
www.onstar.com/us/en/ libcurl:
COPYRIGHT AND PERMISSION
NOTICE
Copyright (c) 1996 - 2010, Daniel
Stenberg, .
All rights reserved.
Permission to use, copy, modify,
and distribute this software for any
purpose with or without fee is
hereby granted, provided that the
above copyright notice and this
permission notice appear in all
copies.
THE SOFTWARE IS PROVIDED
“AS IS,”
WITHOUT WARRANTY OF
ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT
LIMITED TO THE WARRANTIES
OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE
AND NONINFRINGEMENT OF
THIRD PARTY RIGHTS. IN NO
EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM,
DAMAGES OR OTHER LIABILITY,
WHETHER IN AN ACTION OF
CONTRACT, TORT OR

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-12460267) - 2019 - crc - 9/11/18
OnStar 431
OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE
USE OR OTHER DEALINGS IN
THE SOFTWARE.
Except as contained in this notice,
the name of a copyright holder shall
not be used in advertising or
otherwise to promote the sale, use
or other dealings in this Software
without prior written authorization of
the copyright holder.
unzip:
This is version 2005-Feb-10 of the
Info-ZIP copyright and license. The
definitive version of this document
should be available at ftp://
ftp.info-zip.org/pub/infozip/
license.html indefinitely.
Copyright (c) 1990-2005 Info-ZIP. All
rights reserved.
For the purposes of this copyright
and license,“Info-ZIP”is defined as
the following set of individuals:
Mark Adler, John Bush, Karl Davis,
Harald Denker, Jean-Michel Dubois,
Jean-loup Gailly, Hunter Goatley, Ed Gordon, Ian Gorman, Chris
Herborth, Dirk Haase, Greg Hartwig,
Robert Heath, Jonathan Hudson,
Paul Kienitz, David Kirschbaum,
Johnny Lee, Onno van der Linden,
Igor Mandrichenko, Steve P. Miller,
Sergio Monesi, Keith Owens,
George Petrov, Greg Roelofs, Kai
Uwe Rommel, Steve Salisbury,
Dave Smith, Steven M. Schweda,
Christian Spieler, Cosmin Truta,
Antoine Verheijen, Paul von Behren,
Rich Wales, Mike White.
This software is provided
“as is,”
without warranty of any kind,
express or implied. In no event shall
Info-ZIP or its contributors be held
liable for any direct, indirect,
incidental, special or consequential
damages arising out of the use of or
inability to use this software.
Permission is granted to anyone to
use this software for any purpose,
including commercial applications,
and to alter it and redistribute it
freely, subject to the following
restrictions: 1. Redistributions of source code
must retain the above copyright
notice, definition, disclaimer,
and this list of conditions.
2. Redistributions in binary form (compiled executables) must
reproduce the above copyright
notice, definition, disclaimer,
and this list of conditions in
documentation and/or other
materials provided with the
distribution. The sole exception
to this condition is redistribution
of a standard UnZipSFX binary
(including SFXWiz) as part of a
self-extracting archive; that is
permitted without inclusion of
this license, as long as the
normal SFX banner has not
been removed from the binary
or disabled.
3. Altered versions–including, but not limited to, ports to new
operating systems, existing
ports with new graphical
interfaces, and dynamic,
shared, or static library
versions–must be plainly
marked as such and must not

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-12460267) - 2019 - crc - 9/11/18
434 Connected Services
2. Say“Repeat.” System
responds with the last direction
given, then responds with
“OnStar ready,” then a tone.
Get My Destination
1. Press
=. System responds:
“OnStar ready,” then a tone.
2. Say “Get my destination.”
System responds with the
address and distance to the
destination, then responds with
“OnStar ready,” then a tone.
Send Destination to Vehicle
Directions can be sent to the
vehicle’s navigation screen,
if equipped.
Press
Q, then ask the Advisor to
download directions to the vehicle’s
navigation system, if equipped. After
the call ends, the navigation screen
will provide prompts to begin driving
directions. Routes that are sent to
the navigation screen can only be
canceled through the navigation
system. See www.onstar.com (U.S.) or
www.onstar.ca (Canada).
Connections
The following services help with
staying connected.
For coverage maps, see
www.onstar.com (U.S.) or
www.onstar.ca (Canada).
Ensuring Security
.
Change the default passwords
for the Wi-Fi hotspot and
myGMC mobile application.
Make these passwords different
from each other and use a
combination of letters, numbers,
and symbols to increase the
security.
. Change the default name of the
SSID (Service Set Identifier).
This is your network’s name that
is visible to other wireless
devices. Choose a unique name
and avoid family names or
vehicle descriptions. Wi-Fi Hotspot (If Equipped)
The vehicle may have a built-in
Wi-Fi hotspot that provides access
to the Internet and web content at
4G LTE speed. Up to seven mobile
devices can be connected. A data
plan is required. Use the in-vehicle
controls only when it is safe to
do so.
1. To retrieve Wi-Fi hotspot information, press
=to open
the OnStar app on the
infotainment display, then
select Wi-Fi Hotspot. On some
vehicles, touch Wi-Fi or Wi-Fi
Settings on the screen.
2. The Wi-Fi settings will display the Wi-Fi hotspot name (SSID),
password, and on some
vehicles, the connection type
(no Internet connection, 3G,
4G, 4G LTE), and signal quality
(poor, good, excellent).
3. To change the SSID or password, press
Qor call
1-888-4ONSTAR to connect
with an Advisor. On some

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./Cana-
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Index 437
IndexA
Accessories andModifications . . . . . . . . . . . . . . . . . . 297
Accessory Power . . . . . . . . . . . . . . . 224
Active Fuel Management . . . . . . . 226
Adaptive Cruise Control . . . . . . . . 248
Add-On Electrical Equipment . . . 294
Additional Information OnStar . . . . . . . . . . . . . . . . . . . . . . . 427
Additional Maintenance
and Care . . . . . . . . . . . . . . . . . . . . . . 401
Adjustable Throttle and Brake Pedal . . . . . . . . . . . . . . . . . . . 216
Adjustments
Lumbar, Front Seats . . . . . . . . . . . . 68
Air Cleaner/Filter, Engine . . . . . . . 309
Air Conditioning . . . . . . . . . . . 191, 195
Air Filter, Passenger Compartment . . . . . . . . . . . . . . . . . 197
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 196
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . 104
How Does an AirbagRestrain? . . . . . . . . . . . . . . . . . . . . . 96
Passenger Sensing System . . . . 98
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 96 Airbag System (cont'd)
What Will You See after an
Airbag Inflates? . . . . . . . . . . . . . . . 97
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 95
Where Are the Airbags? . . . . . . . . 93
Airbags Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . 103
Passenger Status Indicator . . . 152
Readiness Light . . . . . . . . . . . . . . 151
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . 102
System Check . . . . . . . . . . . . . . . . . . 91
Alarm Vehicle Security . . . . . . . . . . . . . . . . 53
Alert Lane Change . . . . . . . . . . . . . . . . . 264
Side Blind Zone (SBZA) . . . . . . 264
All-Season Tires . . . . . . . . . . . . . . . . 342
All-Terrain Tires . . . . . . . . . . . . . . . . . 343
Antilock Brake System (ABS) . . . 239 Warning Light . . . . . . . . . . . . . . . . . 155
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . 383
Interior . . . . . . . . . . . . . . . . . . . . . . . . 388
Armrest Storage . . . . . . . . . . . . . . . . 127

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./Cana-
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Index 439
Check (cont'd)Ignition Transmission Lock . . . 322
Child Restraints Infants and Young Children . . . 106
Lower Anchors and Tethers
for Children . . . . . . . . . . . . . . . . . . 111
Older Children . . . . . . . . . . . . . . . . 104
Securing . . . . . . . . . . . . 120, 122, 123
Systems . . . . . . . . . . . . . . . . . . . . . . 108
Child-View Mirror . . . . . . . . . . . . . . . . 60
Circuit Breakers . . . . . . . . . . . . . . . . 329
Cleaning Exterior Care . . . . . . . . . . . . . . . . . 383
Interior Care . . . . . . . . . . . . . . . . . . 388
Climate Control Systems Dual Automatic . . . . . . . . . . . . . . . 191
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Cluster, Instrument . . . . . . . . . . . . . 143
Collision Damage Repair . . . . . . . 418
Compartments
Storage . . . . . . . . . . . . . . . . . . . . . . . 126
Compass . . . . . . . . . . . . . . . . . . . . . . . 136
Connected Services
Connections . . . . . . . . . . . . . . . . . . 434
Diagnostics . . . . . . . . . . . . . . . . . . . 436 Connected Services (cont'd)
Navigation . . . . . . . . . . . . . . . . . . . . 433
Connections Connected Services . . . . . . . . . . 434
Control Hill Descent . . . . . . . . . . . . . . . . . . 244
Traction and ElectronicStability . . . . . . . . . . . . . . . . . . . . . 242
Control of a Vehicle . . . . . . . . . . . . . 201
Convenience Net . . . . . . . . . . . . . . . 129
Convex Mirrors . . . . . . . . . . . . . . . . . . 56
Coolant
Engine Temperature Gauge . . 148
Engine TemperatureWarning Light . . . . . . . . . . . . . . . 158
Cooling . . . . . . . . . . . . . . . . . . . . 191, 195
Cooling System . . . . . . . . . . . . . . . . . 310
Courtesy Transportation Program . . . . . . . . . . . . . . . . . . . . . . . 417
Cruise Control . . . . . . . . . . . . . . . . . . 245 Light . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Cruise Control, Adaptive . . . . . . . . 248
Cupholders . . . . . . . . . . . . . . . . . . . . . 126
Customer Assistance . . . . . . . . . . . 414 Offices . . . . . . . . . . . . . . . . . . . . . . . . 413
Text Telephone (TTY)Users . . . . . . . . . . . . . . . . . . . . . . . 414 Customer Information
Publications Ordering
Information . . . . . . . . . . . . . . . . . . 420
Customer Satisfaction Procedure . . . . . . . . . . . . . . . . . . . . . 411
D
Damage Repair, Collision . . . . . . . 418
Danger, Warning, and Caution . . . . 2
Data CollectionInfotainment System . . . . . . . . . . 424
OnStar . . . . . . . . . . . . . . . . . . . . . . . 424
Data Recorders, Event . . . . . . . . . 423
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . 184
Defensive Driving . . . . . . . . . . . . . . . 201
Delayed Locking . . . . . . . . . . . . . . . . . 45
Diagnostics Connected Services . . . . . . . . . . 436
Distracted Driving . . . . . . . . . . . . . . . 200
Dome Lamps . . . . . . . . . . . . . . . . . . . 187
Door Ajar Light . . . . . . . . . . . . . . . . . . . . . 161
Delayed Locking . . . . . . . . . . . . . . . . 45
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Power Locks . . . . . . . . . . . . . . . . . . . . 45
Drive Belt Routing, Engine . . . . . . 410
Driver Assistance Systems . . . . . 255

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./Cana-
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Index 443
Level ControlAutomatic . . . . . . . . . . . . . . . . . . . . . 245
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . 188
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 188
Illumination Control . . . . . . . . . . . 187
LED . . . . . . . . . . . . . . . . . . . . . . . . . . 326
Lights Airbag Readiness . . . . . . . . . . . . . 151
Antilock Brake System(ABS) Warning . . . . . . . . . . . . . . 155
Brake System Warning . . . . . . . 155
Charging System . . . . . . . . . . . . . 152
Check Engine (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . 153
Cruise Control . . . . . . . . . . . . . . . . 161
Door Ajar . . . . . . . . . . . . . . . . . . . . . 161
Engine Coolant Temperature Warning . . . . . . . 158
Engine Oil Pressure . . . . . . . . . . 159
Flash-to-Pass . . . . . . . . . . . . . . . . . 184
Four-Wheel-Drive . . . . . . . . . . . . . 156
Front Fog Lamp . . . . . . . . . . . . . . 160
High-Beam On . . . . . . . . . . . . . . . . 160
High/Low Beam Changer . . . . . 183 Lights (cont'd)
Lane Keep Assist . . . . . . . . . . . . . 156
Low Fuel Warning . . . . . . . . . . . . 159
Seat Belt Reminders . . . . . . . . . . 150
Security . . . . . . . . . . . . . . . . . . . . . . 160
StabiliTrak OFF . . . . . . . . . . . . . . . 157
Tire Pressure . . . . . . . . . . . . . . . . . 158
Tow/Haul Mode . . . . . . . . . . . . . . . 156
Traction Control System
(TCS)/StabiliTrak . . . . . . . . . . . . 158
Traction Off . . . . . . . . . . . . . . . . . . . 157
Locking Rear Axle . . . . . . . . . . . . . . 245
Locks Automatic Door . . . . . . . . . . . . . . . . . 45
Delayed Locking . . . . . . . . . . . . . . . . 45
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Lockout Protection . . . . . . . . . . . . . . 46
Power Door . . . . . . . . . . . . . . . . . . . . . 45
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Loss of Control . . . . . . . . . . . . . . . . . 203
Low Fuel Warning Light . . . . . . . . . 159
Low-Profile Tires . . . . . . . . . . . . . . . . 342
Lower Anchors and Tethers for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . . 111
Lumbar Adjustment . . . . . . . . . . . . . . 68 Front Seats . . . . . . . . . . . . . . . . . . . . . 68M
Magnetic Ride Control . . . . . . . . . . 244
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . 407
Maintenance and Care
Additional . . . . . . . . . . . . . . . . . . . . . 401
Maintenance Schedule . . . . . . . . . 395 Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . 404
Transfer Case . . . . . . . . . . . . . . . . 234
Malfunction Indicator Lamp . . . . . 153
Manual Mode . . . . . . . . . . . . . . . . . . . 231
Memory Features . . . . . . . . . . . . . . . . 12
Memory Seats . . . . . . . . . . . . . . . . . . . 69
Messages Engine Power . . . . . . . . . . . . . . . . 168
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 168
Vehicle Speed . . . . . . . . . . . . . . . . 169
Mirror
Child-View . . . . . . . . . . . . . . . . . . . . . . 60
Mirrors Automatic Dimming . . . . . . . . . . . . . 58
Automatic DimmingRearview . . . . . . . . . . . . . . . . . . . . . . 60
Blind Spot . . . . . . . . . . . . . . . . . . . . . . 58
Convex . . . . . . . . . . . . . . . . . . . . . . . . . 56
Folding . . . . . . . . . . . . . . . . . . . . . . . . . 57
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 58

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./Cana-
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444 Index
Mirrors (cont'd)Manual Rearview . . . . . . . . . . . . . . . 60
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Tilt in Reverse . . . . . . . . . . . . . . . . . . 59
Mirrors, Interior Rearview . . . . . . . . 60
Monitor System, Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 349
N
NavigationConnected Services . . . . . . . . . . 433
Net, Convenience . . . . . . . . . . . . . . 129
New Vehicle Break-In . . . . . . . . . . . 216
Noise Control System . . . . . . . . . . 320
O
Odometer . . . . . . . . . . . . . . . . . . . . . . . 146 Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
Off-Road . . . . . . . . . . . . . . . . . . . . . . . 203 Driving . . . . . . . . . . . . . . . . . . . . . . . . 203
Recovery . . . . . . . . . . . . . . . . . . . . . 202
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . 302
Engine Oil Life System . . . . . . . 304
Engine Oil Pressure Gauge . . . 147
Pressure Light . . . . . . . . . . . . . . . . 159
Older Children, Restraints . . . . . . 104
Online Owner Center . . . . . . . . . . . 414
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . 424 OnStar Additional
Information . . . . . . . . . . . . . . . . . . . . 427
OnStar Emergency . . . . . . . . . . . . . 426
OnStar Overview . . . . . . . . . . . . . . . 425
OnStar Security . . . . . . . . . . . . . . . . 427
Operation Fog Lamps . . . . . . . . . . . . . . . . . . . 186
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . 137
Overheating, Engine . . . . . . . . . . . . 313
P
Park Shifting Into . . . . . . . . . . . . . . . . . . . 224
Shifting Out of . . . . . . . . . . . . . . . . 226
Park Assist . . . . . . . . . . . . . . . . . . . . . 256
Parking Brake . . . . . . . . . . . . . . . . . . . . . . . . . 240
Brake and P (Park)Mechanism Check . . . . . . . . . . 322
Extended . . . . . . . . . . . . . . . . . . . . . 226
Over Things That Burn . . . . . . . 226
Parking or Backing Assistance Systems . . . . . . . . . . 256
Passenger Airbag Status Indicator . . . . . . . . . . . . . . . . . . . . . . 152
Passenger Compartment Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . 197 Passenger Sensing System . . . . . 98
Perchlorate Materials
Requirements, California . . . . . . 297
Personalization Vehicle . . . . . . . . . . . . . . . . . . . . . . . 169
Power Door Locks . . . . . . . . . . . . . . . . . . . . . 45
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Outlets . . . . . . . . . . . . . . . . . . . . . . . 137
Protection, Battery . . . . . . . . . . . . 189
Retained Accessory (RAP) . . . 224
Seat Adjustment . . . . . . . . . . . . . . . . 67
Windows . . . . . . . . . . . . . . . . . . . . . . . 61
Power Assist Steps . . . . . . . . . . . . . . 52
Pregnancy, Using Seat Belts . . . . 88
Privacy Vehicle Data Recording . . . . . . . 423
Program Courtesy Transportation . . . . . . 417
Prohibited Fuels . . . . . . . . . . . . . . . . 269
Proposition 65 Warning,
California . . . . . . . . . . . .296, 318, 374, Back Cover
Publication Ordering
Information . . . . . . . . . . . . . . . . . . . . 420

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./Cana-
da/Mexico-12460267) - 2019 - crc - 9/11/18
446 Index
Seats (cont'd)Memory . . . . . . . . . . . . . . . . . . . . . . . . . 69
Power Adjustment, Front . . . . . . . 67
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Reclining Seatbacks . . . . . . . . . . . . 69
Second Row . . . . . . . . . . . . . . . . . . . . 75
Third Row Seat . . . . . . . . . . . . . . . . . 79
Second Row Seats . . . . . . . . . . . . . . 75
Securing Child Restraints . . . . . . . . . . .120, 122, 123
Security Light . . . . . . . . . . . . . . . . . . . . . . . . . . 160
OnStar . . . . . . . . . . . . . . . . . . . . . . . 427
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . 53
Vehicle Alarm . . . . . . . . . . . . . . . . . . . 53
Service . . . . . . . . . . . . . . . . . . . . . . . . . 198 Accessories andModifications . . . . . . . . . . . . . . . . 297
Doing Your Own Work . . . . . . . . 297
Maintenance Records . . . . . . . . 407
Maintenance, General Information . . . . . . . . . . . . . . . . . . 393
Parts Identification Label . . . . . 408
Scheduling Appointments . . . . . 417
Services Special Application . . . . . . . . . . . 400
Servicing the Airbag . . . . . . . . . . . . 102 Shift Lock Control Function
Check, Automatic
Transmission . . . . . . . . . . . . . . . . . . 322
Shifting Into Park . . . . . . . . . . . . . . . . . . . . . . 224
Out of Park . . . . . . . . . . . . . . . . . . . 226
Side Blind Zone Alert (SBZA) . . . 264
Signals, Turn and
Lane-Change . . . . . . . . . . . . . . . . . 185
Special Application Services . . . . 400
Specifications and Capacities . . . . . . . . . . . . . . . . . . . . . 409
Speedometer . . . . . . . . . . . . . . . . . . . 146
StabiliTrak OFF Light . . . . . . . . . . . . . . . . . . . . . 157
Start Assist, Hill . . . . . . . . . . . . . . . . . 241
Start Vehicle, Remote . . . . . . . . . . . 43
Starter Switch Check . . . . . . . . . . . 321
Starting the Engine . . . . . . . . . . . . . 221
Steering . . . . . . . . . . . . . . . . . . . . . . . . 202 Heated Wheel . . . . . . . . . . . . . . . . 133
Wheel Adjustment . . . . . . . . . . . . 132
Wheel Controls . . . . . . . . . . . . . . . 133
Steps Power Assist . . . . . . . . . . . . . . . . . . . 52
Storage Rear . . . . . . . . . . . . . . . . . . . . . . . . . . 127 Storage Areas
Armrest . . . . . . . . . . . . . . . . . . . . . . . 127
Center Console . . . . . . . . . . . . . . . 128
Convenience Net . . . . . . . . . . . . . 129
Floor Console . . . . . . . . . . . . . . . . 129
Glove Box . . . . . . . . . . . . . . . . . . . . 126
Instrument Panel . . . . . . . . . . . . . 126
Roof Rack System . . . . . . . . . . . . 129
Sunglasses . . . . . . . . . . . . . . . . . . . 127
Storage Compartments . . . . . . . . . 126
Struts Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . 324
Stuck Vehicle . . . . . . . . . . . . . . . . . . . 211
Sun Visors . . . . . . . . . . . . . . . . . . . . . . . 62
Sunglass Storage . . . . . . . . . . . . . . . 127
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System Forward CollisionAlert (FCA) . . . . . . . . . . . . . . . . . . 260
Infotainment . . . . . . . . . . . . . 190, 424
Noise Control . . . . . . . . . . . . . . . . . 320
Roof Rack . . . . . . . . . . . . . . . . . . . . 129
Systems Driver Assistance . . . . . . . . . . . . . 255