warning GMC YUKON 2019 Owner's Manual

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-12460267) - 2019 - crc - 9/11/18
380 Vehicle Care
Four-Wheel-Drive Vehicles
Only dinghy tow four-wheel-drive
vehicles with a two speed transfer
case that have a N (Neutral) and a 4
nsetting.
{Warning
Shifting a four-wheel-drive
vehicle's transfer case into
N (Neutral) can cause the vehicle
to roll even if the transmission is
in P (Park). You or others could
be injured. Set the parking brake
before shifting the transfer case
to N (Neutral).To dinghy tow:
1. Position the vehicle being towed behind the tow vehicle,
facing forward and on a level
surface.
2. Securely attach the vehicle being towed to the tow vehicle.
3. Apply the parking brake and start the engine.
4. Shift the transfer case to N (Neutral). See “Shifting into
N (Neutral)” underFour-Wheel
Drive 0234. Check that the
vehicle is in N (Neutral) by
starting the engine and shifting
the transmission to
R (Reverse) and then to D
(Drive). There should be no
movement of the vehicle while
shifting.
5. Shift the transmission into D (Drive). Turn the engine off.
Caution
Failure to disconnect the negative
battery cable or to have it contact
the terminals can cause damage
to the vehicle.
6. Disconnect the negative battery cable at the battery and
secure the nut and bolt. Cover
the negative battery post with a
non-conductive material to
prevent any contact with the
negative battery terminal.
7. Shift the transmission to P (Park).
Caution
If the steering column is locked,
vehicle damage may occur.
8. Move the steering wheel to make sure the steering column
is unlocked.
9. With a foot on the brake pedal, release the parking brake.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-12460267) - 2019 - crc - 9/11/18
Vehicle Care 391
Cargo Cover and
Convenience Net
If equipped, wash with warm water
and mild detergent. Do not use
chlorine bleach. Rinse with cold
water, and then dry completely.
Care of Seat Belts
Keep belts clean and dry.
{Warning
Do not bleach or dye seat belt
webbing. It may severely weaken
the webbing. In a crash, they
might not be able to provide
adequate protection. Clean and
rinse seat belt webbing only with
mild soap and lukewarm water.
Allow the webbing to dry.
Floor Mats
{Warning
If a floor mat is the wrong size or
is not properly installed, it can
interfere with the pedals.
Interference with the pedals can
cause unintended acceleration
and/or increased stopping
distance which can cause a crash
and injury. Make sure the floor
mat does not interfere with the
pedals.
Use the following guidelines for
proper floor mat usage:
. The original equipment floor
mats were designed for your
vehicle. If the floor mats need
replacing, it is recommended
that GM certified floor mats be
purchased. Non-GM floor mats
may not fit properly and may
interfere with the pedals. Always
check that the floor mats do not
interfere with the pedals. .
Do not use a floor mat if the
vehicle is not equipped with a
floor mat retainer on the driver
side floor.
. Use the floor mat with the
correct side up. Do not turn
it over.
. Do not place anything on top of
the driver side floor mat.
. Use only a single floor mat on
the driver side.
. Do not place one floor mat on
top of another.
Removing and Replacing the
Floor Mats
Pull up on the rear of the driver side
floor mat to unlock each retainer
and remove.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-12460267) - 2019 - crc - 9/11/18
394 Service and Maintenance
The Tire Rotation and Required
Services are the responsibility of the
vehicle owner. It is recommended to
have your dealer perform these
services every 12 000 km/7,500 mi.
Proper vehicle maintenance helps to
keep the vehicle in good working
condition, improves fuel economy,
and reduces vehicle emissions.
Because of the way people use
vehicles, maintenance needs vary.
There may need to be more
frequent checks and services. The
Additional Required Services -
Normal are for vehicles that:
.Carry passengers and cargo
within recommended limits on
the Tire and Loading Information
label. See Vehicle Load Limits
0 212.
. Are driven on reasonable road
surfaces within legal driving
limits. .
Use the recommended fuel.
See Recommended Fuel
(L86 6.2L V8 Engine) 0269 or
Recommended Fuel (L83 5.3L
V8 Engine) 0269.
Refer to the information in the
Maintenance Schedule Additional
Required Services - Normal chart.
The Additional Required Services -
Severe are for vehicles that are:
. Mainly driven in heavy city traffic
in hot weather.
. Mainly driven in hilly or
mountainous terrain.
. Frequently towing a trailer.
. Used for high speed or
competitive driving.
. Used for taxi, police, or delivery
service. Refer to the information in the
Maintenance Schedule Additional
Required Services - Severe chart.
{Warning
Performing maintenance work can
be dangerous and can cause
serious injury. Perform
maintenance work only if the
required information, proper tools,
and equipment are available.
If they are not, see your dealer to
have a trained technician do the
work. See
Doing Your Own
Service Work 0297.

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./Cana-
da/Mexico-12460267) - 2019 - crc - 9/11/18
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-
da/Mexico-12460267) - 2019 - crc - 9/11/18
438 Index
Assistance Program,Roadside . . . . . . . . . . . . . . . . . . . . . . 415
Assistance Systems for Driving . . . . . . . . . . . . . . . . . . . . . . . . 260
Assistance Systems for Parking and Backing . . . . . . . . . . 256
Automatic
Dimming Mirrors . . . . . . . . . . . . . . . . 58
Door Locks . . . . . . . . . . . . . . . . . . . . . 45
Forward Braking . . . . . . . . . . . . . . 262
Headlamp System . . . . . . . . . . . . 184
Level Control . . . . . . . . . . . . . . . . . 245
Transmission . . . . . . . . . . . . . . . . . 228
Transmission Fluid . . . . . . 305, 308
Automatic Transmission Manual Mode . . . . . . . . . . . . . . . . . 231
Shift Lock Control Function
Check . . . . . . . . . . . . . . . . . . . . . . . 322
Axle, Front . . . . . . . . . . . . . . . . . . . . . . 319
Axle, Rear . . . . . . . . . . . . . . . . . . . . . . 320
B
Battery Exterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . 189
Load Management . . . . . . . . . . . . 188 Battery (cont'd)
Power Protection . . . . . . . . . . . . . 189
Battery - North America . . . . 318, 374
Blade Replacement, Wiper . . . . . 323
Blind Spot Mirrors . . . . . . . . . . . . . . . 58
Brake Pedal and AdjustableThrottle . . . . . . . . . . . . . . . . . . . . . . 216
System Warning Light . . . . . . . . 155
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . 316 Antilock . . . . . . . . . . . . . . . . . . . . . . . 239
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 241
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 317
Parking . . . . . . . . . . . . . . . . . . . . . . . 240
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 201 Automatic Forward . . . . . . . . . . . 262
Break-In, New Vehicle . . . . . . . . . . 216
Bulb Replacement Back-up Lamps . . . . . . . . . . . . . . . 327
Fog Lamps . . . . . . . . . . . . . . . . . . . 326
Headlamp Aiming . . . . . . . . . . . . . 325
Headlamps . . . . . . . . . . . . . . . . . . . 326
High Intensity Discharge(HID) Lighting . . . . . . . . . . . . . . . 326
License Plate Lamps . . . . . . . . . 328
Buying New Tires . . . . . . . . . . . . . . . 357
C
Calibration . . . . . . . . . . . . . . . . . . . . . . 136
California Perchlorate MaterialsRequirements . . . . . . . . . . . . . . . 297
California Proposition
65 Warning . . . . . . . . . .296, 318, 374, Back Cover
Canadian Vehicle Owners . . . . . . . . 2
Capacities and
Specifications . . . . . . . . . . . . . . . . . 409
Carbon Monoxide Engine Exhaust . . . . . . . . . . . . . . . 227
Liftgate . . . . . . . . . . . . . . . . . . . . . . . . . 47
Winter Driving . . . . . . . . . . . . . . . . 209
Cargo Tie-Downs . . . . . . . . . . . . . . . . . . . . 129
Caution, Danger, and Warning . . . . 2
Center Console Storage . . . . . . . . 128
Center Seat . . . . . . . . . . . . . . . . . . . . . 67
Chains, Tire . . . . . . . . . . . . . . . . . . . . 361
Charging Wireless . . . . . . . . . . . . . . . . . . . . . . 139
Charging System Light . . . . . . . . . 152
Check Engine Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . 153

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./Cana-
da/Mexico-12460267) - 2019 - crc - 9/11/18
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-
da/Mexico-12460267) - 2019 - crc - 9/11/18
440 Index
Driver InformationCenter (DIC) . . . . . . . . . . . . . . . . . . 161
Driving Assistance Systems . . . . . . . . . . 260
Characteristics andTowing Tips . . . . . . . . . . . . . . . . . 273
Defensive . . . . . . . . . . . . . . . . . . . . . 201
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 201
For Better Fuel Economy . . . . . . . 27
Hill and Mountain Roads . . . . . . 209
If the Vehicle is Stuck . . . . . . . . . .211
Loss of Control . . . . . . . . . . . . . . . 203
Off-Road . . . . . . . . . . . . . . . . . . . . . 203
Off-Road Recovery . . . . . . . . . . . 202
Vehicle Load Limits . . . . . . . . . . . 212
Wet Roads . . . . . . . . . . . . . . . . . . . 208
Winter . . . . . . . . . . . . . . . . . . . . . . . . 209
Dual Automatic Climate Control System . . . . . . . . . . . . . . . . 191
E
E85 or FlexFuel . . . . . . . . . . . . . . . . 270
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 294
Electrical System Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 330
Fuses and Circuit Breakers . . . 329 Electrical System (cont'd)
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . 334, 337
Overload . . . . . . . . . . . . . . . . . . . . . 329
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 339
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . 426
Engine
Air Cleaner/Filter . . . . . . . . . . . . . 309
Check Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . 153
Compartment Overview . . . . . . . 299
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 148
Coolant Temperature Warning Light . . . . . . . . . . . . . . . 158
Cooling System . . . . . . . . . . . . . . . 310
Drive Belt Routing . . . . . . . . . . . . 410
Exhaust . . . . . . . . . . . . . . . . . . . . . . 227
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . 315
Heater . . . . . . . . . . . . . . . . . . . . . . . . 223
Oil Life System . . . . . . . . . . . . . . . 304
Oil Pressure Gauge . . . . . . . . . . 147
Oil Pressure Light . . . . . . . . . . . . 159
Overheating . . . . . . . . . . . . . . . . . . 313
Power Messages . . . . . . . . . . . . . 168
Running While Parked . . . . . . . . 228 Engine (cont'd)
Starting . . . . . . . . . . . . . . . . . . . . . . . 221
Entry Lighting . . . . . . . . . . . . . . . . . . . 188
Equipment, Towing . . . . . . . . . . . . . 284
Event Data Recorders . . . . . . . . . . 423
Exit Lighting . . . . . . . . . . . . . . . . . . . . 188
Extended Parking . . . . . . . . . . . . . . . 226
Extender, Seat Belt . . . . . . . . . . . . . . 90
Exterior Lamp Controls . . . . . . . . . 181
Exterior Lamps Off Reminder . . . 183
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . . . 189
F
FanEngine . . . . . . . . . . . . . . . . . . . . . . . . 315
Features Memory . . . . . . . . . . . . . . . . . . . . . . . . . 12
Filter,
Engine Air Cleaner . . . . . . . . . . . 309
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 184
Flashers, Hazard Warning . . . . . . 185
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 362 Changing . . . . . . . . . . . . . . . . . . . . . 363
FlexFuel E85 . . . . . . . . . . . . . . . . . . . . . . . . . . . 270
Floor Console Storage . . . . . . . . . . 129
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 391

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./Cana-
da/Mexico-12460267) - 2019 - crc - 9/11/18
Index 441
FluidAutomatic
Transmission . . . . . . . . . . . 305, 308
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 317
Four-Wheel Drive Transfer Case . . . . . . . . . . . . . . . 234
Washer . . . . . . . . . . . . . . . . . . . . . . . 315
Fog Lamps . . . . . . . . . . . . . . . . . . . . . 186 Bulb Replacement . . . . . . . . . . . . 326
Folding Mirrors . . . . . . . . . . . . . . . . . . 57
Forward Automatic Braking . . . . . 262
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . 260
Four-Wheel Drive . . . . . . . . . . 234, 318
Four-Wheel-Drive Light . . . . . . . . . 156
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . 421
Front Axle . . . . . . . . . . . . . . . . . . . . . . 319
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . 160
Front Seats
Heated and Ventilated . . . . . . . . . . 72
Fuel Additives . . . . . . . . . . . . . . . . . . . . . 270
Economy Driving . . . . . . . . . . . . . . . 27
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 272
Filling the Tank . . . . . . . . . . . . . . . 271 Fuel (cont'd)
Foreign Countries . . . . . . . . . . . . 270
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 147
Low Fuel Warning Light . . . . . . . 159
Management, Active . . . . . . . . . . 226
Prohibited Fuels . . . . . . . . . . . . . . 269
Recommended . . . . . . . . . . . . . . . 269
Top Tier . . . . . . . . . . . . . . . . . . . . . . 268
Full-Size Spare Tire . . . . . . . . . . . . 373
Fuses
Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 330
Fuses and Circuit Breakers . . . 329
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . 334, 337
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 339
G
Garage Door Opener . . . . . . . . . . . 177Programming . . . . . . . . . . . . . . . . . 177
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . 324
Gauges Engine Coolant
Temperature . . . . . . . . . . . . . . . . 148
Engine Oil Pressure . . . . . . . . . . 147
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Odometer . . . . . . . . . . . . . . . . . . . . . 146 Gauges (cont'd)
Speedometer . . . . . . . . . . . . . . . . . 146
Tachometer . . . . . . . . . . . . . . . . . . . 146
Transmission Temperature . . . . 149
Trip Odometer . . . . . . . . . . . . . . . . 146
Voltmeter . . . . . . . . . . . . . . . . . . . . . 150
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . 142
General Information
Service and Maintenance . . . . . 393
Towing . . . . . . . . . . . . . . . . . . . . . . . . 273
Vehicle Care . . . . . . . . . . . . . . . . . . 296
Glass Replacement . . . . . . . . . . . . . 324
Glove Box . . . . . . . . . . . . . . . . . . . . . . 126
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . 415
H
Hazard Warning Flashers . . . . . . . 185
Head Restraints . . . . . . . . . . . . . . . . . 66
Head-up Display . . . . . . . . . . . . . . . . 164
HeadlampsAiming . . . . . . . . . . . . . . . . . . . . . . . . 325
Automatic . . . . . . . . . . . . . . . . . . . . . 184
Bulb Replacement . . . . . . . . . . . . 326
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . 184
Flash-to-Pass . . . . . . . . . . . . . . . . . 184

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./Cana-
da/Mexico-12460267) - 2019 - crc - 9/11/18
442 Index
Headlamps (cont'd)High Intensity Discharge
(HID) Lighting . . . . . . . . . . . . . . . 326
High-Beam On Light . . . . . . . . . . 160
High/Low Beam Changer . . . . . 183
Lamps On Reminder . . . . . . . . . 160
Heated Rear Seats . . . . . . . . . . . . . . . . . . . . . 74
Steering Wheel . . . . . . . . . . . . . . . 133
Heated and Ventilated Front Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Heated Mirrors . . . . . . . . . . . . . . . . . . . 58
Heater Engine . . . . . . . . . . . . . . . . . . . . . . . . 223
Heating . . . . . . . . . . . . . . . . . . . . 191, 195
High-Beam On Light . . . . . . . . . . . . 160
High-Speed Operation . . . . . . . . . . 349
Hill and Mountain Roads . . . . . . . . 209
Hill Descent Control (HDC) . . . . . 244
Hill Start Assist (HSA) . . . . . . . . . . 241
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 298
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
How to Wear Seat Belts Properly . . . . . . . . . . . . . . . . . . . . . . . . 82
HVAC . . . . . . . . . . . . . . . . . . . . . . 191, 195I
Ignition Positions . . . . . . . . . . 217, 219
Ignition Transmission Lock Check . . . . . . . . . . . . . . . . . . . . . . . . . 322
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 55
Indicator
Vehicle Ahead . . . . . . . . . . . . . . . . 157
Infants and Young Children, Restraints . . . . . . . . . . . . . . . . . . . . . 106
Information
Publication Ordering . . . . . . . . . . 420
Infotainment . . . . . . . . . . . . . . . . . . . . 190
Infotainment System . . . . . . . . . . . . 424
Instrument Cluster . . . . . . . . . . . . . . 143
Instrument Panel Storage Area . . . . . . . . . . . . . . . . . 126
Interior Rearview Mirrors . . . . . . . . . 60
Introduction . . . . . . . . . . . . . . . . . . . . . . . 2
J
Jump Starting - North America . . . . . . . . . . . . . . . . . . . . . . . 374
K
Keyless EntryRemote (RKE) System . . . . . 34, 41
Keys . . . . . . . . . . . . . . . . . . . . . . . . . 29, 30
L
Labeling, Tire Sidewall . . . . . . . . . . 343
Lamps Daytime Running (DRL) . . . . . . 184
Dome . . . . . . . . . . . . . . . . . . . . . . . . . 187
Exterior Controls . . . . . . . . . . . . . . 181
Exterior Lamps OffReminder . . . . . . . . . . . . . . . . . . . 183
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . 189
License Plate . . . . . . . . . . . . . . . . . 328
Malfunction Indicator (Check Engine) . . . . . . . . . . . . . 153
On Reminder . . . . . . . . . . . . . . . . . 160
Reading . . . . . . . . . . . . . . . . . . . . . . 187
Lane Change Alert (LCA) . . . . . . . 264
Lane Departure Warning (LDW) . . . . . . . . . . . . . . . . 266
Lane Keep Assist (LKA) . . . . . . . . 266
Lane Keep Assist Light . . . . . . . . . 156
Lap Belt . . . . . . . . . . . . . . . . . . . . . . . . . 89
Lap-Shoulder Belt . . . . . . . . . . . . . . . 84
LATCH System Replacing Parts after a
Crash . . . . . . . . . . . . . . . . . . . . . . . 120
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . 111
LED Lighting . . . . . . . . . . . . . . . . . . . . 326

GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./Cana-
da/Mexico-12460267) - 2019 - crc - 9/11/18
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