GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13566587) - 2020 - CRC - 4/15/19
106 Seats and Restraints
Securing Child Restraints
(With the Seat Belt in the
Front Passenger Seat)
This vehicle has airbags. A rear
seat is a safer place to secure a
forward-facing child restraint. See
Where to Put the Restraint092.
In addition, the vehicle has a
passenger sensing system which is
designed to turn off the front
outboard passenger frontal airbag
under certain conditions. See
Passenger Sensing System 080
and
Passenger Airbag Status Indicator
0 135 for more information,
including important safety
information.
Never put a rear-facing child seat in
the front. This is because the risk to
the rear-facing child is so great if the
airbag deploys.
{Warning
A child in a rear-facing child
restraint can be seriously injured
or killed if the front outboard
passenger frontal airbag inflates.
This is because the back of the
rear-facing child restraint would
be very close to the inflating
airbag. A child in a forward-facing
child restraint can be seriously
injured or killed if the front
outboard passenger frontal airbag
inflates and the passenger seat is
in a forward position.
Even if the passenger sensing
system has turned off the front
outboard passenger frontal
airbag, no system is fail-safe. No
one can guarantee that an airbag
will not deploy under some
unusual circumstance, even
though it is turned off.
Secure rear-facing child restraints
in a rear seat, even if the airbag
is off. If you secure a
(Continued)
Warning (Continued)
forward-facing child restraint in
the front outboard passenger
seat, always move the seat as far
back as it will go. It is better to
secure the child restraint in a
rear seat.
SeePassenger Sensing System
0 80 for additional information.
If the child restraint uses a top
tether, see Lower Anchors and
Tethers for Children (LATCH
System) 093 for top tether anchor
locations.
Do not secure a child seat in a
position without a top tether anchor
if a national or local law requires
that the top tether be anchored, or if
the instructions that come with the
child restraint say that the top tether
must be anchored.
In Canada, the law requires that
forward-facing child restraints have
a top tether, and that the tether be
attached.
GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./Cana-
da/Mexico-13566587) - 2020 - CRC - 4/15/19
Index 423
Check (cont'd)Ignition Transmission Lock . . . 308
Child Restraints Infants and Young Children . . . . . 88
Lower Anchors and Tethers
for Children . . . . . . . . . . . . . . . . . . . 93
Older Children . . . . . . . . . . . . . . . . . . 86
Securing . . . . . . . . . . . . 103, 105, 106
Systems . . . . . . . . . . . . . . . . . . . . . . . . 90
Child-View Mirror . . . . . . . . . . . . . . . . 41
Circuit Breakers . . . . . . . . . . . . . . . . 315
Cleaning Exterior Care . . . . . . . . . . . . . . . . . 367
Interior Care . . . . . . . . . . . . . . . . . . 372
Climate Control Systems Dual Automatic . . . . . . . . . . . . . . . 175
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Cluster, Instrument . . . . . . . . . . . . . 126
Collision Damage Repair . . . . . . . 403
Compartments
Storage . . . . . . . . . . . . . . . . . . . . . . . 109
Compass . . . . . . . . . . . . . . . . . . . . . . . 119
Connected Services
Connections . . . . . . . . . . . . . . . . . . 419
Diagnostics . . . . . . . . . . . . . . . . . . . 420
Navigation . . . . . . . . . . . . . . . . . . . . 418 Connections
Connected Services . . . . . . . . . . 419
Control Hill Descent . . . . . . . . . . . . . . . . . . 228
Traction and ElectronicStability . . . . . . . . . . . . . . . . . . . . . 226
Control of a Vehicle . . . . . . . . . . . . . 186
Convenience Net . . . . . . . . . . . . . . . 112
Convex Mirrors . . . . . . . . . . . . . . . . . . 37
Coolant Engine Temperature Gauge . . 131
Engine Temperature
Warning Light . . . . . . . . . . . . . . . 141
Cooling . . . . . . . . . . . . . . . . . . . . 175, 179
Cooling System . . . . . . . . . . . . . . . . . 297
Courtesy Transportation Program . . . . . . . . . . . . . . . . . . . . . . . 402
Cruise Control . . . . . . . . . . . . . . . . . . 230 Light . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Cruise Control, Adaptive . . . . . . . . 232
Cupholders . . . . . . . . . . . . . . . . . . . . . 109
Customer Assistance . . . . . . . . . . . 399 Offices . . . . . . . . . . . . . . . . . . . . . . . . 398
Text Telephone (TTY)Users . . . . . . . . . . . . . . . . . . . . . . . 399
Customer Information Publications OrderingInformation . . . . . . . . . . . . . . . . . . 405 Customer Satisfaction
Procedure . . . . . . . . . . . . . . . . . . . . . 396
Cybersecurity . . . . . . . . . . . . . . . . . . . 408
D
Damage Repair, Collision . . . . . . . 403
Danger, Warning, and Caution . . . . 3
Data Collection Infotainment System . . . . . . . . . . 409
OnStar . . . . . . . . . . . . . . . . . . . . . . . 409
Data Recorders, Event . . . . . . . . . 408
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . 167
Defensive Driving . . . . . . . . . . . . . . . 185
Delayed Locking . . . . . . . . . . . . . . . . . 25
Diagnostics Connected Services . . . . . . . . . . 420
Distracted Driving . . . . . . . . . . . . . . . 184
Dome Lamps . . . . . . . . . . . . . . . . . . . 170
Door Ajar Light . . . . . . . . . . . . . . . . . . . . . 144
Delayed Locking . . . . . . . . . . . . . . . . 25
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Power Locks . . . . . . . . . . . . . . . . . . . . 25
Drive Belt Routing, Engine . . . . . . 395
Driver Assistance Systems . . . . . 240
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . . 144
GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./Cana-
da/Mexico-13566587) - 2020 - CRC - 4/15/19
426 Index
Headlamps (cont'd)Lamps On Reminder . . . . . . . . . 143
Heated Rear Seats . . . . . . . . . . . . . . . . . . . . . 55
Steering Wheel . . . . . . . . . . . . . . . .116
Heated and Ventilated Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Heated Mirrors . . . . . . . . . . . . . . . . . . . 39
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . 207
Heating . . . . . . . . . . . . . . . . . . . . 175, 179
High-Beam On Light . . . . . . . . . . . . 143
High-Speed Operation . . . . . . . . . . 334
Hill and Mountain Roads . . . . . . . . 193
Hill Descent Control (HDC) . . . . . 228
Hill Start Assist (HSA) . . . . . . . . . . 225
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 284
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
How to Wear Seat Belts Properly . . . . . . . . . . . . . . . . . . . . . . . . 63
HVAC . . . . . . . . . . . . . . . . . . . . . . 175, 179
I
Ignition Positions . . . . . . . . . . 202, 204
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . . . . . 308
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 36 Indicator
Vehicle Ahead . . . . . . . . . . . . . . . . 140
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . . . 88
Information Publication Ordering . . . . . . . . . . 405
Infotainment . . . . . . . . . . . . . . . . . . . . 174
Infotainment System . . . . . . . . . . . . 409
Instrument Cluster . . . . . . . . . . . . . . 126
Instrument Panel Overview . . . . . . . 5
Interior Rearview Mirrors . . . . . . . . . 41
Introduction . . . . . . . . . . . . . . . . . . . . . . . 2
J
Jump Starting - North
America . . . . . . . . . . . . . . . . . . . . . . . 360
K
Keyless EntryRemote (RKE) System . . . . . 13, 16
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . .9, 10
L
Labeling, Tire Sidewall . . . . . . . . . . 329
Lamps Daytime Running (DRL) . . . . . . 167
Dome . . . . . . . . . . . . . . . . . . . . . . . . . 170
Exterior Controls . . . . . . . . . . . . . . 164 Lamps (cont'd)
Exterior Lamps Off
Reminder . . . . . . . . . . . . . . . . . . . 166
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . 173
License Plate . . . . . . . . . . . . . . . . . 314
Malfunction Indicator (Check Engine) . . . . . . . . . . . . . 136
On Reminder . . . . . . . . . . . . . . . . . 143
Reading . . . . . . . . . . . . . . . . . . . . . . 171
Lane Change Alert (LCA) . . . . . . . 250
Lane Keep Assist (LKA) . . . . . . . . 251
Lane Keep Assist Light . . . . . . . . . 139
Lap Belt . . . . . . . . . . . . . . . . . . . . . . . . . 71
Lap-Shoulder Belt . . . . . . . . . . . . . . . 65
LATCH System Replacing Parts after aCrash . . . . . . . . . . . . . . . . . . . . . . . 103
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . . 93
LED Lighting . . . . . . . . . . . . . . . . . . . . 312
Level Control Automatic . . . . . . . . . . . . . . . . . . . . . 229
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . 171
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Illumination Control . . . . . . . . . . . 170
GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./Cana-
da/Mexico-13566587) - 2020 - CRC - 4/15/19
Index 427
Lighting (cont'd)LED . . . . . . . . . . . . . . . . . . . . . . . . . . 312
Lights Airbag Readiness . . . . . . . . . . . . . 134
Antilock Brake System
(ABS) Warning . . . . . . . . . . . . . . 138
Brake System Warning . . . . . . . 138
Charging System . . . . . . . . . . . . . 135
Check Engine (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . 136
Cruise Control . . . . . . . . . . . . . . . . 144
Door Ajar . . . . . . . . . . . . . . . . . . . . . 144
Engine Coolant Temperature Warning . . . . . . . 141
Engine Oil Pressure . . . . . . . . . . 142
Flash-to-Pass . . . . . . . . . . . . . . . . . 167
Four-Wheel-Drive . . . . . . . . . . . . . 139
Front Fog Lamp . . . . . . . . . . . . . . 143
High-Beam On . . . . . . . . . . . . . . . . 143
High/Low Beam Changer . . . . . 166
Lane Keep Assist . . . . . . . . . . . . . 139
Low Fuel Warning . . . . . . . . . . . . 142
Seat Belt Reminders . . . . . . . . . . 133
Security . . . . . . . . . . . . . . . . . . . . . . 143
StabiliTrak OFF . . . . . . . . . . . . . . . 140
Tire Pressure . . . . . . . . . . . . . . . . . 141
Tow/Haul Mode . . . . . . . . . . . . . . . 139 Lights (cont'd)
Traction Control System
(TCS)/StabiliTrak . . . . . . . . . . . . 141
Traction Off . . . . . . . . . . . . . . . . . . . 140
Lock Steering Column . . . . . . . . . . . . . . . . 35
Locking Rear Axle . . . . . . . . . . . . . . 229
Locks Automatic Door . . . . . . . . . . . . . . . . . 25
Delayed Locking . . . . . . . . . . . . . . . . 25
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Lockout Protection . . . . . . . . . . . . . . 26
Power Door . . . . . . . . . . . . . . . . . . . . . 25
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Loss of Control . . . . . . . . . . . . . . . . . 187
Low Fuel Warning Light . . . . . . . . . 142
Low-Profile Tires . . . . . . . . . . . . . . . . 328
Lower Anchors and Tethers for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . . . 93
Lumbar Adjustment . . . . . . . . . . . . . . 49 Front Seats . . . . . . . . . . . . . . . . . . . . . 49
M
Magnetic Ride Control . . . . . . . . . . 229
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . 391 Maintenance and Care
Additional . . . . . . . . . . . . . . . . . . . . . 385
Maintenance Schedule . . . . . . . . . 379 Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . 388
Transfer Case . . . . . . . . . . . . . . . . 219
Malfunction Indicator Lamp . . . . . 136
Manual Mode . . . . . . . . . . . . . . . . . . . 216
Memory Seats . . . . . . . . . . . . . . . . . . . 51
Messages Engine Power . . . . . . . . . . . . . . . . 151
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 151
Vehicle Speed . . . . . . . . . . . . . . . . 152
Mirror Child-View . . . . . . . . . . . . . . . . . . . . . . 41
Mirrors
Automatic Dimming . . . . . . . . . . . . . 39
Automatic DimmingRearview . . . . . . . . . . . . . . . . . . . . . . 41
Blind Spot . . . . . . . . . . . . . . . . . . . . . . 39
Convex . . . . . . . . . . . . . . . . . . . . . . . . . 37
Folding . . . . . . . . . . . . . . . . . . . . . . . . . 38
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 39
Manual Rearview . . . . . . . . . . . . . . . 41
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Tilt in Reverse . . . . . . . . . . . . . . . . . . 40
Mirrors, Interior Rearview . . . . . . . . 41