GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13690468) - 2021 - crc - 8/14/20
390 Service and Maintenance
(2)Visually check all fuel and vapor lines
and hoses for proper attachment,
connection, routing, and condition.
(3) Or every four years, whichever comes
first. If driving in dusty conditions, inspect
the filter at each oil change or more often
as needed. See Engine Air Cleaner/Filter
0 318.
(4) Do not directly power wash the transfer
case and/or front/rear axle output seals.
High pressure water can overcome the seals
and contaminate the transfer case fluid.
Contaminated fluid will decrease the life of
the transfer case and/or axles and should be
replaced.
(5) Or every five years, whichever comes
first. See Cooling System 0319.
(6) Or every 10 years, whichever comes first.
Inspect for fraying, excessive cracking,
or damage; replace, if needed.
(7) Replace brake fluid every five years. See
Brake Fluid 0326.
(8) Or every 12 months, whichever comes
first. See Wiper Blade Replacement 0329.
(9) Or every 10 years, whichever comes first.
See Gas Strut(s) 0330. (10)
Replace air conditioning desiccant every
seven years.
Special Application Services
.Severe Commercial Use Vehicles Only:
Lubricate chassis components every oil
change.
.Have underbody flushing service
performed. See "Underbody Maintenance"
in Exterior Care 0374.
Additional Maintenance
and Care
Your vehicle is an important investment and
caring for it properly may help to avoid
future costly repairs. To maintain vehicle
performance, additional maintenance
services may be required.
It is recommended that your dealer perform
these services —their trained dealer
technicians know your vehicle best. Your
dealer can also perform a thorough
assessment with a multi-point inspection to
recommend when your vehicle may need
attention. The following list is intended to explain the
services and conditions to look for that may
indicate services are required.
Battery
The 12-volt battery supplies power to start
the engine and operate any additional
electrical accessories.
.To avoid break-down or failure to start
the vehicle, maintain a battery with full
cranking power.
.Trained dealer technicians have the
diagnostic equipment to test the battery
and ensure that the connections and
cables are corrosion-free.
Belts
.Belts may need replacing if they squeak
or show signs of cracking or splitting.
.Trained dealer technicians have access to
tools and equipment to inspect the belts
and recommend adjustment or
replacement when necessary.
Brakes
Brakes stop the vehicle and are crucial to
safe driving.
.Signs of brake wear may include chirping,
grinding, or squealing noises, or difficulty
stopping.
GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13690468) - 2021 - crc - 8/14/20
416 Connected Services
PressQ, 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 and numbers 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). The
LTE icon shows connection to Wi-Fi. It is
possible that the icon may not illuminate
even though the vehicle has an active
connection.
3. To change the SSID or password, press
Qor call 1-888-4ONSTAR to connect
with an Advisor. On some vehicles, the
SSID and password can be changed in
the Wi-Fi Hotspot menu. After initial set-up, your vehicle’s Wi-Fi
hotspot will connect automatically to your
mobile devices. Manage data usage by
turning Wi-Fi on or off on your mobile
device, using the myGMC mobile app, or by
contacting an OnStar Advisor. On some
vehicles, Wi-Fi can also be managed from
the Wi-Fi Hotspot menu.
MyGMC Mobile App (If Available)
Download the myGMC mobile app to
compatible Apple and Android smartphones.
GMC users can access the following services
from a smartphone:
.Remotely start/stop the vehicle,
if factory-equipped.
.Lock/unlock doors, if equipped with
automatic locks.
.Activate the horn and lamps.
.Check the vehicle’s fuel level, oil life,
or tire pressure, if factory-equipped with
the Tire Pressure Monitor System.
.Send destinations to the vehicle.
.Locate the vehicle on a map (U.S.
market only).
.Turn the vehicle's Wi-Fi hotspot on/off,
manage settings, and monitor data
consumption, if equipped.
.Locate a dealer and schedule service.
GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./Cana-
da/Mexico-13690468) - 2021 - crc - 8/14/20
Index 421
Driving (cont'd)Defensive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Hill and Mountain Roads . . . . . . . . . . . . . . 220
If the Vehicle is Stuck . . . . . . . . . . . . . . . . . 221
Impaired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . 216
Off-Road . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Off-Road Recovery . . . . . . . . . . . . . . . . . . . . . 215
Vehicle Load Limits . . . . . . . . . . . . . . . . . . . . 222
Wet Roads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
Dual Automatic Climate Control
System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
Dynamic Fuel Management . . . . . . . . . . . . . . . 231
E
Electric Brake Boost . . . . . . . . . . . . . . . . . . . . . . 240
Electric Parking Brake . . . . . . . . . . . . . . . . . . . . 240
Electric Parking Brake Light . . . . . . . . . . . . . . . 113
Electrical Equipment, Add-On . . . . . . . . . . . . 306
Electrical System Engine Compartment Fuse Block . . . . . . . 332
Fuses and Circuit Breakers . . . . . . . . . . . . . 331
Instrument Panel Fuse Block . . . . . . . . . . . 335
Overload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331
Rear Compartment Fuse Block . . . . . . . . . 337
Electronic Stability Control (ESC) Off Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116 Emergency
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 411
Engine Air Cleaner/Filter . . . . . . . . . . . . . . . . . . . . . . 318
Check Light (Malfunction Indicator) . . . . . 111
Compartment Overview . . . . . . . . . . . . . . . . 312
Coolant Temperature Gauge . . . . . . . . . . . 108
Coolant Temperature Warning Light . . . . 116
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . 319
Drive Belt Routing . . . . . . . . . . . . . . . . . . . . . 398
Exhaust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324
Oil Life System . . . . . . . . . . . . . . . . . . . . . . . . 316
Oil Pressure Gauge . . . . . . . . . . . . . . . . . . . . 107
Oil Pressure Light . . . . . . . . . . . . . . . . . . . . . . . 118
Overheating . . . . . . . . . . . . . . . . . . . . . . . . . . . 322
Power Messages . . . . . . . . . . . . . . . . . . . . . . . 125
Running While Parked . . . . . . . . . . . . . . . . . 232
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
Engine Air Filter Life System . . . . . . . . . . . . . .318
Entry Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Equipment, Towing . . . . . . . . . . . . . . . . . . . . . . 287
Event Data Recorders . . . . . . . . . . . . . . . . . . . . 409
Exit Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Extended Parking . . . . . . . . . . . . . . . . . . . . . . . . . 231
Extender, Seat Belt . . . . . . . . . . . . . . . . . . . . . . . 59
Exterior Lamp Controls . . . . . . . . . . . . . . . . . . . .134
Exterior Lamps Off Reminder . . . . . . . . . . . . 136 Exterior Lighting Battery Saver . . . . . . . . . . . 141
F
Fan
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324
Filter, Engine Air Cleaner . . . . . . . . . . . . . . . . . . . . . 318
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Flashers, Hazard Warning . . . . . . . . . . . . . . . . . 137
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 355 Changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 356
Floor Console Storage . . . . . . . . . . . . . . . . . . . . . 92
Floor Mats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .381
Fluid
Automatic Transmission . . . . . . . . . . . . . . . . 317
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326
Four-Wheel Drive Transfer Case . . . . . . . . 236
Washer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324
Fog Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .138
Folding Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Forward Collision Alert (FCA) System . . . . 267
Four Corner Air Suspension Light . . . . . . . . . 117
Four Corner Air Suspension System . . . . . . 248
Four-Wheel Drive . . . . . . . . . . . . . . . . . . . .236, 327
Four-Wheel-Drive Light . . . . . . . . . . . . . . . . . . . . 114
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 407
Front Axle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 328
GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./Cana-
da/Mexico-13690468) - 2021 - crc - 8/14/20
422 Index
Front Fog LampLight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270
Front Seats Heated and Ventilated . . . . . . . . . . . . . . . . . . 44
Fuel
Additives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278
Dynamic Management . . . . . . . . . . . . . . . . . 231
Economy, Driving for Better . . . . . . . . . . . 213
Filling a Portable Fuel Container . . . . . . . 279
Filling the Tank . . . . . . . . . . . . . . . . . . . . . . . . 278
Foreign Countries . . . . . . . . . . . . . . . . . . . . . . 278
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Low Fuel Warning Light . . . . . . . . . . . . . . . . 118
Prohibited Fuels . . . . . . . . . . . . . . . . . . . . . . . 277
Recommended . . . . . . . . . . . . . . . . . . . . . . . . . 277
Top Tier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276
Full-Size Spare Tire . . . . . . . . . . . . . . . . . . . . . . . 366
Fuses Engine Compartment Fuse Block . . . . . . . 332
Fuses and Circuit Breakers . . . . . . . . . . . . . 331
Instrument Panel Fuse Block . . . . . . . . . . . 335
Rear Compartment Fuse Block . . . . . . . . . 337
G
Garage Door Opener . . . . . . . . . . . . . . . . . . . . . . 131 Garage Door Opener (cont'd)
Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330
Gauges Engine Coolant Temperature . . . . . . . . . . . 108
Engine Oil Pressure . . . . . . . . . . . . . . . . . . . . 107
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . 106
Voltmeter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Warning Lights and Indicators . . . . . . . . . 103
General Information Service and Maintenance . . . . . . . . . . . . . . 383
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280
Vehicle Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 309
Glass Replacement . . . . . . . . . . . . . . . . . . . . . . . 330
Global Positioning System (GPS) . . . . . . . . . .174
Glove Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 402
Guidance Problems with the Route . . . . . . . . . . . . . . . 175
H
Hazard Warning Flashers . . . . . . . . . . . . . . . . . 137
HD Radio Technology . . . . . . . . . . . . . . . . . . . . 149
Head Restraints . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Head-up Display . . . . . . . . . . . . . . . . . . . . . . . . . . 122
HeadlampsAiming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331
Automatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Daytime Running Lamps (DRL) . . . . . . . . . 136
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
High-Beam On Light . . . . . . . . . . . . . . . . . . . . 119
High/Low Beam Changer . . . . . . . . . . . . . . 136
Lamps On Reminder . . . . . . . . . . . . . . . . . . . . 119
Heated
Rear Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Steering Wheel . . . . . . . . . . . . . . . . . . . . . . . . . 96
Heated and Ventilated Front Seats . . . . . . . 44
Heated Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204, 207
High-Beam On Light . . . . . . . . . . . . . . . . . . . . . . 119
High-Speed Operation . . . . . . . . . . . . . . . . . . . 345
Hill and Mountain Roads . . . . . . . . . . . . . . . . 220
Hill Descent Control (HDC) . . . . . . . . . . . . . . . 244
Hill Descent Control Light . . . . . . . . . . . . . . . . . 114
Hill Start Assist (HSA) . . . . . . . . . . . . . . . . . . . . 242
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
How to Wear Seat Belts Properly . . . . . . . . . 54
GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./Cana-
da/Mexico-13690468) - 2021 - crc - 8/14/20
Index 423
HVAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204, 207
I
If the System Needs Service . . . . . . . . . . . . . . 175
Ignition Positions . . . . . . . . . . . . . . . . . . . . . . . . 226
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
IndicatorPedestrian Ahead . . . . . . . . . . . . . . . . . . . . . . . 115
Vehicle Ahead . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Infants and Young Children, Restraints . . . . .72
Information Publication Ordering . . . . . . . . . . . . . . . . . . . 406
Infotainment System . . . . . . . . . . . . . . . . . . . . 409 Rear Seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Instrument Cluster . . . . . . . . . . . . . . . . . . . . . . . 104
Instrument Panel Storage Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Instrument Panel Overview . . . . . . . . . . . . . . . . 4
Interior Rearview Mirrors . . . . . . . . . . . . . . . . . 30
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 1, 142
J
Jump Starting - North America . . . . . . . . . . . 367
K
Keyless Entry Remote (RKE) System . . . . . . . . . . . . . . . . . . . . 8
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
L
Labeling, Tire Sidewall . . . . . . . . . . . . . . . . . . . .341
Lamps
Daytime Running (DRL) . . . . . . . . . . . . . . . . 136
Dome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Exterior Controls . . . . . . . . . . . . . . . . . . . . . . . 134
Exterior Lamps Off Reminder . . . . . . . . . . 136
Exterior Lighting Battery Saver . . . . . . . . . 141
Malfunction Indicator (CheckEngine) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
On Reminder . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Reading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Lane Change Alert (LCA) . . . . . . . . . . . . . . . . . 272
Lane Keep Assist (LKA) . . . . . . . . . . . . . . . . . . . 275
Lane Keep Assist Light . . . . . . . . . . . . . . . . . . . . 114
Lap-Shoulder Belt . . . . . . . . . . . . . . . . . . . . . . . . . 56
LATCH System Replacing Parts after a Crash . . . . . . . . . . . 83
LATCH, Lower Anchors and Tethers for
Children . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
LED Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Illumination Control . . . . . . . . . . . . . . . . . . . 139
LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 331 Lights
Airbag Readiness . . . . . . . . . . . . . . . . . . . . . . 109
Antilock Brake System (ABS)
Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Brake System Warning . . . . . . . . . . . . . . . . . 112
Charging System . . . . . . . . . . . . . . . . . . . . . . . 111
Check Engine (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Cruise Control . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Door Ajar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Driver Mode Control . . . . . . . . . . . . . . . . . . . . 116
Electric Parking Brake . . . . . . . . . . . . . . . . . . . 113
Electronic Stability Control (ESC), Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Engine Coolant Temperature Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Engine Oil Pressure . . . . . . . . . . . . . . . . . . . . . 118
Flash-to-Pass . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Four Corner Air Suspension . . . . . . . . . . . . . 117
Four-Wheel-Drive . . . . . . . . . . . . . . . . . . . . . . . 114
Front Fog Lamp . . . . . . . . . . . . . . . . . . . . . . . . . 119
High-Beam On . . . . . . . . . . . . . . . . . . . . . . . . . . 119
High/Low Beam Changer . . . . . . . . . . . . . . 136
Hill Descent Control . . . . . . . . . . . . . . . . . . . . 114
Lane Keep Assist . . . . . . . . . . . . . . . . . . . . . . . . 114
Low Fuel Warning . . . . . . . . . . . . . . . . . . . . . . 118
Seat Belt Reminders . . . . . . . . . . . . . . . . . . . 109
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./Cana-
da/Mexico-13690468) - 2021 - crc - 8/14/20
424 Index
Lights (cont'd)Service Electric Parking Brake . . . . . . . . . . . 113
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Traction Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Lock Steering Column . . . . . . . . . . . . . . . . . . . . . . . . 27
Locking Rear Axle . . . . . . . . . . . . . . . . . . . . . . . . 248
Locks
Automatic Door . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Delayed Locking . . . . . . . . . . . . . . . . . . . . . . . . . 17
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Lockout Protection . . . . . . . . . . . . . . . . . . . . . . . 17
Power Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Loss of Control . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Low Fuel Warning Light . . . . . . . . . . . . . . . . . . 118
Low-Profile Tires . . . . . . . . . . . . . . . . . . . . . . . . . 340
Lower Anchors and Tethers for Children (LATCH System) . . . . . . . . . . . . . . . . .77
Lumbar Adjustment . . . . . . . . . . . . . . . . . . . . . . . 40 Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
M
Magnetic Ride Control . . . . . . . . . . . . . . . . . . . 247
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 395 Maintenance and Care
Additional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 390
Maintenance Schedule . . . . . . . . . . . . . . . . . . . 384 Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . . . . . . . . . . 392
Transfer Case . . . . . . . . . . . . . . . . . . . . . . . . . . 236
Malfunction Indicator Lamp . . . . . . . . . . . . . . . 111
Manual Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Map Data Updates . . . . . . . . . . . . . . . . . . . . . . . . 175
Maps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
Media
Avoiding Untrusted Devices . . . . . . . . . . . . . 151
Memory Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Messages Engine Power . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Vehicle Speed . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Mirror Rear Camera . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Mirrors Automatic Dimming . . . . . . . . . . . . . . . . . . . . 30
Automatic Dimming Rearview . . . . . . . . . . 30
Convex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Folding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Heated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Manual Rearview . . . . . . . . . . . . . . . . . . . . . . . 30
Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Tilt in Reverse . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Mirrors, Interior Rearview . . . . . . . . . . . . . . . . . 30
Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245
Driver Control . . . . . . . . . . . . . . . . . . . . . . . . . 245
Monitor System, Tire Pressure . . . . . . . . . . . 346
Multi-band Antenna . . . . . . . . . . . . . . . . . . . . . . 151
N
Navigation Connected Services . . . . . . . . . . . . . . . . . . . . 415
Destination . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
Using the System . . . . . . . . . . . . . . . . . . . . . . 164
Navigation Symbols . . . . . . . . . . . . . . . . . . . . . 167
Net, Convenience . . . . . . . . . . . . . . . . . . . . . . . . . 93
New Vehicle Break-In . . . . . . . . . . . . . . . . . . . . 226
O
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Off-Road . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216 Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
Oil
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 315
Engine Oil Life System . . . . . . . . . . . . . . . . . 316
Engine Oil Pressure Gauge . . . . . . . . . . . . . 107
Pressure Light . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Older Children, Restraints . . . . . . . . . . . . . . . . . . 71
Online Owner Center . . . . . . . . . . . . . . . . . . . . 401
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 409
GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./Cana-
da/Mexico-13690468) - 2021 - crc - 8/14/20
428 Index
Tires (cont'd)Pressure Light . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Pressure Monitor Operation . . . . . . . . . . . 347
Pressure Monitor System . . . . . . . . . . . . . . 346
Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 350
Sidewall Labeling . . . . . . . . . . . . . . . . . . . . . . 341
Terminology and Definitions . . . . . . . . . . . 342
Uniform Tire Quality Grading . . . . . . . . . . 353
Wheel Alignment and Tire Balance . . . . 354
Wheel Replacement . . . . . . . . . . . . . . . . . . . . 354
When It Is Time for New Tires . . . . . . . . . 351
Winter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 340
Top Tier Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276
Tow/Haul Mode . . . . . . . . . . . . . . . . . . . . . . . . . 235
Towing Driving Characteristics . . . . . . . . . . . . . . . . . 280
Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287
General Information . . . . . . . . . . . . . . . . . . . 280
Recreational Vehicle . . . . . . . . . . . . . . . . . . . . 371
Trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
Trailer Sway Control (TSC) . . . . . . . . . . . . . 295
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 370
Traction Off Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Traction Control/Electronic Stability Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242
Trademarks and License Agreements . . . . . 196 Trailer
Sway Control (TSC) . . . . . . . . . . . . . . . . . . . . 295
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
Trailer Towing App . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 297
Trailering App . . . . . . . . . . . . . . . . . . . . . . . . . . . 297
Transfer Case . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236
Transmission Automatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
Fluid, Automatic . . . . . . . . . . . . . . . . . . . . . . . . 317
Transportation Program, Courtesy . . . . . . . 404
Trip Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Turn and Lane-Change Signals . . . . . . . . . . . .138
U
Uniform Tire Quality Grading . . . . . . . . . . . . 353
Universal Remote System . . . . . . . . . . . . . . . . . 131
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Updates Map Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
USB Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 152
Using the Navigation System . . . . . . . . . . . . 164
Using the System . . . . . . . . . . . . . . . . . . . . . . . . .145
Using This Manual . . . . . . . . . . . . . . . . . . . . . . . . . .2
V
Vehicle Alarm System . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Canadian Owners . . . . . . . . . . . . . . . . . . . . . . . . 2
Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Identification Number (VIN) . . . . . . . . . . . . 396
Load Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Personalization . . . . . . . . . . . . . . . . . . . . . . . . 126
Remote Start . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Speed Messages . . . . . . . . . . . . . . . . . . . . . . . 126
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 370
Vehicle Ahead Indicator . . . . . . . . . . . . . . . . . . . 115
Vehicle Care
Tire Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . 344
Vehicle Data Recording and Privacy . . . . . . 408
Vehicle Positioning . . . . . . . . . . . . . . . . . . . . . . . 175
Vehicle Security Steering Column Lock . . . . . . . . . . . . . . . . . . . 27
Ventilation, Air . . . . . . . . . . . . . . . . . . . . . . . . . . 208
Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Voice Recognition . . . . . . . . . . . . . . . . . . . . . . . . 176
Voltmeter Gauge . . . . . . . . . . . . . . . . . . . . . . . . 108
W
Warning Brake System Light . . . . . . . . . . . . . . . . . . . . . 112