warning GMC SIERRA DENALI 2019 Owners Manual

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - crc - 5/15/18
Vehicle Care 403CautionDo not tow this vehicle with two
wheels on the ground, or vehicle
damage could occur. This
damage would not be covered by
the vehicle warranty.
Dolly towing this vehicle is not
allowed with either the front or the
rear tires on the ground for
two-wheel drive or four-wheel drive,
regardless of transfer case. Appearance Care Exterior Care Locks Locks are lubricated at the factory.
Use a de-icing agent only when
absolutely necessary, and have the
locks greased after using. See
Recommended Fluids and
Lubricants 0 425 .
Washing the Vehicle To preserve the vehicle's finish,
wash it often and out of direct
sunlight.
{ Warning
Do not power wash any part of
the vehicle ’ s interior, including the
vinyl floor covering. This could
damage safety and other systems
in the vehicle, which would not be
covered by the vehicle warranty. CautionDo not use petroleum-based,
acidic, or abrasive cleaning
agents as they can damage the
vehicle's paint, metal, or plastic
parts. If damage occurs, it would
not be covered by the vehicle
warranty. Approved cleaning
products can be obtained from
your dealer. Follow all
manufacturer directions regarding
correct product usage, necessary
safety precautions, and
appropriate disposal of any
vehicle care product.
Caution
Avoid using high-pressure
washes closer than 30 cm (12 in)
to the surface of the vehicle. Use
of power washers exceeding
8,274 kPa (1,200 psi) can result
in damage or removal of paint
and decals.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - crc - 5/15/18
Vehicle Care 411Caution (Continued)the appearance and feel of
leather or soft trim, and are not
recommended.
Do not use cleaners that increase
gloss, especially on the instrument
panel. Reflected glare can decrease
visibility through the windshield
under certain conditions.
CautionUse of air fresheners may cause
permanent damage to plastics
and painted surfaces. If an air
freshener comes in contact with
any plastic or painted surface in
the vehicle, blot immediately and
clean with a soft cloth dampened
with a mild soap solution.
Damage caused by air fresheners
would not be covered by the
vehicle warranty. Care of Seat Belts Keep belts clean and dry.
{ WarningDo 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
(Continued) Warning (Continued) 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.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - crc - 5/15/18
414 Service and Maintenance Caution (Continued)approved by GM could damage
the vehicle, requiring expensive
repairs that are not covered by
the vehicle warranty.
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
0 209 . .
Are driven on reasonable road
surfaces within legal driving
limits.
.
Use the recommended fuel.
See Recommended Fuel
(Except 6.2L V8 Engine) 0 271
or Recommended Fuel (6.2L
V8 Engine) 0 271 .
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. { WarningPerforming 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 0 314 .

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-1500-11698638) - 2019 - crc - 5/16/18
Index 459
Index A Accessories and
Modifications . . . . . . . . . . . . . . . . . . 313
Accessory Power . . . . . . . . . . . . . . . 225
Active Fuel Management . . . . . . . 227
Add-On Electrical Equipment . . . 306
Adding a Snow Plow or
Similar Equipment . . . . . . . . . . . . . 307
Additional Information
OnStar . . . . . . . . . . . . . . . . . . . . . . . 449
Additional Maintenance
and Care . . . . . . . . . . . . . . . . . . . . . . 422
Adjustments
Lumbar, Front Seats . . . . . . . . . . . . 71
Air Cleaner/Filter, Engine . . . . . . . 326
Air Conditioning . . . . . . . . . . . 188, 190
Air Filter
Life System . . . . . . . . . . . . . . . . . . . 325
Air Filter, Passenger
Compartment . . . . . . . . . . . . . . . . . 194
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 194
Airbag System
Check . . . . . . . . . . . . . . . . . . . . . . . . . . 98
How Does an Airbag
Restrain? . . . . . . . . . . . . . . . . . . . . . 90
Passenger Sensing System . . . . 92
What Makes an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 90 Airbag System (cont'd)
What Will You See after an
Airbag Inflates? . . . . . . . . . . . . . . . 91
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 89
Where Are the Airbags? . . . . . . . . 88
Airbags
Adding Equipment to the
Vehicle . . . . . . . . . . . . . . . . . . . . . . . . 97
Passenger Status Indicator . . . 148
Readiness Light . . . . . . . . . . . . . . 147
Servicing Airbag-Equipped
Vehicles . . . . . . . . . . . . . . . . . . . . . . . 96
System Check . . . . . . . . . . . . . . . . . . 86
Alarm
Vehicle Security . . . . . . . . . . . . . . . . 54
Alert
Lane Change . . . . . . . . . . . . . . . . . 267
Side Blind Zone (SBZA) . . . . . . 267
All-Season Tires . . . . . . . . . . . . . . . . 359
All-Terrain Tires . . . . . . . . . . . . . . . . . 360
Antilock Brake System (ABS) . . . 240
Warning Light . . . . . . . . . . . . . . . . . 152
Appearance Care
Exterior . . . . . . . . . . . . . . . . . . . . . . . 403
Interior . . . . . . . . . . . . . . . . . . . . . . . . 408
Assistance Program,
Roadside . . . . . . . . . . . . . . . . . . . . . . 437

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-1500-11698638) - 2019 - crc - 5/16/18
460 Index Assistance Systems for
Driving . . . . . . . . . . . . . . . . . . . . . . . . 260
Assistance Systems for
Parking and Backing . . . . . . . . . . 254
Auto Stop
Stop/Start System . . . . . . . . . . . . 222
Automatic
Dimming Mirrors . . . . . . . . . . . . . . . . 58
Door Locks . . . . . . . . . . . . . . . . . . . . . 46
Forward Braking . . . . . . . . . . . . . . 263
Headlamp System . . . . . . . . . . . . 179
Transmission . . . . . . . . . . . . . . . . . 229
Transmission Fluid . . . . . . . . . . . 325
Automatic Transmission
Manual Mode . . . . . . . . . . . . . . . . . 232
Axle, Front . . . . . . . . . . . . . . . . . . . . . . 340
Axle, Rear . . . . . . . . . . . . . . . . . . . . . . 341
B Battery
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . 185
Load Management . . . . . . . . . . . . 185
Power Protection . . . . . . . . . . . . . 185
Battery - North America . . . . 337, 395
Blade Replacement, Wiper . . . . . 344
Blind Spot Mirrors . . . . . . . . . . . . . . . 58 Brake
Parking, Electric . . . . . . . . . . . . . . 241
System Warning Light . . . . . . . . 151
Brake Pad Life System . . . . . . . . . 335
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . 335
Antilock . . . . . . . . . . . . . . . . . . . . . . . 240
Assist . . . . . . . . . . . . . . . . . . . . . . . . . 242
Fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 336
Pad Life System . . . . . . . . . . . . . . 335
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 198
Automatic Forward . . . . . . . . . . . 263
Braking System
Front Pedestrian (FPB) . . . . . . . 264
Break-In, New Vehicle . . . . . . . . . . 216
Bulb Replacement
Center High-Mounted
Stoplamp (CHMSL) and
Cargo Lamp . . . . . . . . . . . . . . . . . 348
Halogen Bulbs . . . . . . . . . . . . . . . . 346
Headlamp Aiming . . . . . . . . . . . . . 346
Headlamps . . . . . . . . . . . . . . . . . . . 346
Headlamps, Front Turn
Signal, Sidemarker, and
Parking Lamps . . . . . . . . . . . . . . 347
License Plate Lamps . . . . . . . . . 349
Taillamps, Turn Signal,
Stoplamps, and Back-up
Lamps . . . . . . . . . . . . . . . . . . . . . . 347 Buying New Tires . . . . . . . . . . . . . . . 378
C Calibration . . . . . . . . . . . . . . . . . . . . . . 132
California
Perchlorate Materials
Requirements . . . . . . . . . . . . . . . 313
California
Proposition
65 Warning . . . . . . . . . .313, 337, 395,
Back Cover
Canadian Vehicle Owners . . . . . . . . 2
Capacities and
Specifications . . . . . . . . . . . . . . . . . 430
Carbon Monoxide
Engine Exhaust . . . . . . . . . . . . . . . 228
Tailgate . . . . . . . . . . . . . . . . . . . . . . . . . 47
Winter Driving . . . . . . . . . . . . . . . . 206
Cargo
Tie-Downs . . . . . . . . . . . . . . . . . . . . 127
Caution, Danger, and Warning . . . . 2
Center Console Storage . . . . . . . . 126
Center High-Mounted
Stoplamp (CHMSL) and
Cargo Lamp . . . . . . . . . . . . . . . . . . . 348
Center Seat . . . . . . . . . . . . . . . . . . . . . 70
Chains, Tire . . . . . . . . . . . . . . . . . . . . 382

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-1500-11698638) - 2019 - crc - 5/16/18
Index 461Charging
Wireless . . . . . . . . . . . . . . . . . . . . . . 135
Charging System Light . . . . . . . . . 148
Check
Engine Light (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . 149
Ignition Transmission Lock . . . 343
Child Restraints
Infants and Young Children . . . 100
Lower Anchors and Tethers
for Children . . . . . . . . . . . . . . . . . 106
Older Children . . . . . . . . . . . . . . . . . . 99
Securing . . . . . . . . . . . . 117, 120, 121
Systems . . . . . . . . . . . . . . . . . . . . . . 103
Circuit Breakers . . . . . . . . . . . . . . . . 350
Cleaning
Exterior Care . . . . . . . . . . . . . . . . . 403
Interior Care . . . . . . . . . . . . . . . . . . 408
Climate Control Systems . . . . . . . 188
Air Conditioning . . . . . . . . . . . . . . 188
Dual Automatic . . . . . . . . . . . . . . . 190
Heating . . . . . . . . . . . . . . . . . . . . . . . 188
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Cluster, Instrument . . . . . . . . . . . . . 138
Collision Damage Repair . . . . . . . 440
Compartments
Storage . . . . . . . . . . . . . . . . . . . . . . . 125
Compass . . . . . . . . . . . . . . . . . . . . . . . 132 Connected Services
Connections . . . . . . . . . . . . . . . . . . 456
Diagnostics . . . . . . . . . . . . . . . . . . . 458
Navigation . . . . . . . . . . . . . . . . . . . . 455
Connections
Connected Services . . . . . . . . . . 456
Control
Hill Descent . . . . . . . . . . . . . . . . . . 245
Traction and Electronic
Stability . . . . . . . . . . . . . . . . . . . . . 243
Control Light
Hill Descent . . . . . . . . . . . . . . . . . . 153
Control of a Vehicle . . . . . . . . . . . . . 198
Convex Mirrors . . . . . . . . . . . . . . . . . . 56
Coolant
Engine Temperature Gauge . . 145
Engine Temperature
Warning Light . . . . . . . . . . . . . . . 155
Cooling . . . . . . . . . . . . . . . . . . . . 188, 190
Cooling System . . . . . . . . . . . . . . . . . 327
Courtesy Transportation
Program . . . . . . . . . . . . . . . . . . . . . . . 439
Cruise Control . . . . . . . . . . . . . . . . . . 250
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Cupholders . . . . . . . . . . . . . . . . . . . . . 125
Customer Assistance . . . . . . . . . . . 436
Offices . . . . . . . . . . . . . . . . . . . . . . . . 435 Customer Assistance (cont'd)
Text Telephone (TTY)
Users . . . . . . . . . . . . . . . . . . . . . . . 436
Customer Information
Publications Ordering
Information . . . . . . . . . . . . . . . . . . 442
Customer Satisfaction
Procedure . . . . . . . . . . . . . . . . . . . . . 433
D Damage Repair, Collision . . . . . . . 440
Danger, Warning, and Caution . . . . 2
Data Collection
Infotainment System . . . . . . . . . . 446
OnStar . . . . . . . . . . . . . . . . . . . . . . . 446
Data Recorders, Event . . . . . . . . . 445
Daytime Running
Lamps (DRL) . . . . . . . . . . . . . . . . . . 179
Defensive Driving . . . . . . . . . . . . . . . 198
Delayed Locking . . . . . . . . . . . . . . . . . 45
Diagnostics
Connected Services . . . . . . . . . . 458
Differential, Limited-Slip . . . . . . . . 250
Distracted Driving . . . . . . . . . . . . . . . 197
Dome Lamps . . . . . . . . . . . . . . . . . . . 183
Door
Ajar Light . . . . . . . . . . . . . . . . . . . . . 158
Delayed Locking . . . . . . . . . . . . . . . . 45

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-1500-11698638) - 2019 - crc - 5/16/18
462 Index Door (cont'd)
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Power Locks . . . . . . . . . . . . . . . . . . . . 45
Drive Belt Routing, Engine . . . . . . 432
Driver Assistance Systems . . . . . 253
Driver Information
Center (DIC) . . . . . . . . . . . . . 159, 160
Driver Mode Control . . . . . . . . . . . . 246
Driver Mode Control Light . . . . . . 156
Driving
Assistance Systems . . . . . . . . . . 260
Characteristics and
Towing Tips . . . . . . . . . . . . . . . . . 276
Defensive . . . . . . . . . . . . . . . . . . . . . 198
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . 198
For Better Fuel Economy . . . . . . . 29
Hill and Mountain Roads . . . . . . 206
If the Vehicle is Stuck . . . . . . . . . 208
Loss of Control . . . . . . . . . . . . . . . 200
Off-Road . . . . . . . . . . . . . . . . . . . . . 200
Off-Road Recovery . . . . . . . . . . . 199
Vehicle Load Limits . . . . . . . . . . . 209
Wet Roads . . . . . . . . . . . . . . . . . . . 205
Winter . . . . . . . . . . . . . . . . . . . . . . . . 206
Dual Automatic Climate
Control System . . . . . . . . . . . . . . . . 190 E E85 or FlexFuel . . . . . . . . . . . . . . . . 272
Electric Parking Brake . . . . . . . . . . 241
Electric Parking Brake Light . . . . 152
Electrical Equipment,
Add-On . . . . . . . . . . . . . . . . . . . . . . . 306
Electrical System
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 350
Fuses and Circuit Breakers . . . 350
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . 354, 356
Overload . . . . . . . . . . . . . . . . . . . . . 349
Electronic Stability Control
(ESC) Off Light . . . . . . . . . . . . . . . . 155
Emergency
OnStar . . . . . . . . . . . . . . . . . . . . . . . 448
Engine
Air Cleaner/Filter . . . . . . . . . . . . . 326
Check Light (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . 149
Compartment Overview . . . . . . . 316
Coolant Temperature
Gauge . . . . . . . . . . . . . . . . . . . . . . 145
Coolant Temperature
Warning Light . . . . . . . . . . . . . . . 155
Cooling System . . . . . . . . . . . . . . . 327
Drive Belt Routing . . . . . . . . . . . . 432 Engine (cont'd)
Exhaust . . . . . . . . . . . . . . . . . . . . . . 228
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . 333
Heater . . . . . . . . . . . . . . . . . . . . . . . . 223
Oil Life System . . . . . . . . . . . . . . . 323
Oil Pressure Gauge . . . . . . . . . . 144
Oil Pressure Light . . . . . . . . . . . . 157
Overheated Protection
Operating Mode . . . . . . . . . . . . . 333
Overheating . . . . . . . . . . . . . . . . . . 331
Power Messages . . . . . . . . . . . . . 167
Running While Parked . . . . . . . . 229
Starting . . . . . . . . . . . . . . . . . . . . . . . 221
Engine Air Filter Life System . . . . 325
Entry Lighting . . . . . . . . . . . . . . . . . . . 184
Equipment, Towing . . . . . . . . . . . . . 285
Event Data Recorders . . . . . . . . . . 445
Exit Lighting . . . . . . . . . . . . . . . . . . . . 184
Extended Parking . . . . . . . . . . . . . . . 228
Extender, Seat Belt . . . . . . . . . . . . . . 84
Exterior Cargo Lamps . . . . . . . . . . 182
Exterior Lamp Controls . . . . . . . . . 176
Exterior Lamps Off Reminder . . . 178
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . . . 185

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-1500-11698638) - 2019 - crc - 5/16/18
Index 463F Fan
Engine . . . . . . . . . . . . . . . . . . . . . . . . 333
Features
Memory . . . . . . . . . . . . . . . . . . . . . . . . . 12
Filter,
Engine Air Cleaner . . . . . . . . . . . 326
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 179
Flashers, Hazard Warning . . . . . . 180
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 383
Changing . . . . . . . . . . . . . . . . . . . . . 385
FlexFuel
E85 . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
Floor Console Storage . . . . . . . . . . 127
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 411
Fluid
Automatic Transmission . . . . . . 325
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 336
Four-Wheel Drive
Transfer Case . . . . . . . . . . . . . . . 235
Washer . . . . . . . . . . . . . . . . . . . . . . . 334
Fog Lamps . . . . . . . . . . . . . . . . . . . . . 181
Folding Mirrors . . . . . . . . . . . . . . . . . . 57
Forward Automatic Braking . . . . . 263
Forward Collision Alert
(FCA) System . . . . . . . . . . . . . . . . . 260
Four-Wheel Drive . . . . . . . . . . 235, 340
Four-Wheel-Drive Light . . . . . . . . . 153 Frequency Statement
Radio . . . . . . . . . . . . . . . . . . . . . . . . . 443
Front Axle . . . . . . . . . . . . . . . . . . . . . . 340
Front Fog Lamp
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Front Pedestrian Braking
(FPB) System . . . . . . . . . . . . . . . . . 264
Front Seats
Adjustment . . . . . . . . . . . . . . . . . . . . . 69
Heated and Ventilated . . . . . . . . . . 75
Fuel
Additives . . . . . . . . . . . . . . . . . . . . . 272
Economy Driving . . . . . . . . . . . . . . . 29
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . 275
Filling the Tank . . . . . . . . . . . . . . . 273
Foreign Countries . . . . . . . . . . . . 272
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 143
Low Fuel Warning Light . . . . . . . 157
Management, Active . . . . . . . . . . 227
Prohibited Fuels . . . . . . . . . . . . . . 272
Recommended . . . . . . . . . . . . . . . 271
Top Tier . . . . . . . . . . . . . . . . . . . . . . 271
Full-Size Spare Tire . . . . . . . . . . . . 394
Fuses
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 350
Fuses and Circuit Breakers . . . 350 Fuses (cont'd)
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . 354, 356
G Garage Door Opener . . . . . . . . . . . 172
Programming . . . . . . . . . . . . . . . . . 172
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . 345
Gauges
Engine Coolant
Temperature . . . . . . . . . . . . . . . . 145
Engine Oil Pressure . . . . . . . . . . 144
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 143
Odometer . . . . . . . . . . . . . . . . . . . . . 142
Speedometer . . . . . . . . . . . . . . . . . 142
Tachometer . . . . . . . . . . . . . . . . . . . 143
Trip Odometer . . . . . . . . . . . . . . . . 142
Voltmeter . . . . . . . . . . . . . . . . . . . . . 146
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . 137
General Information
Service and Maintenance . . . . . 413
Towing . . . . . . . . . . . . . . . . . . . . . . . . 276
Vehicle Care . . . . . . . . . . . . . . . . . . 312
Glove Box . . . . . . . . . . . . . . . . . . . . . . 125
GM Mobility Reimbursement
Program . . . . . . . . . . . . . . . . . . . . . . . 437

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-1500-11698638) - 2019 - crc - 5/16/18
464 Index H Halogen Bulbs . . . . . . . . . . . . . . . . . . 346
Hazard Warning Flashers . . . . . . . 180
Head Restraints . . . . . . . . . . . . . . . . . 68
Head-up Display . . . . . . . . . . . . . . . . 163
Headlamps
Aiming . . . . . . . . . . . . . . . . . . . . . . . . 346
Automatic . . . . . . . . . . . . . . . . . . . . . 179
Bulb Replacement . . . . . . . . . . . . 346
Daytime Running
Lamps (DRL) . . . . . . . . . . . . . . . . 179
Flash-to-Pass . . . . . . . . . . . . . . . . . 179
Headlamps, Front Turn
Signal, Sidemarker, and
Parking Lamps . . . . . . . . . . . . . . 347
High-Beam On Light . . . . . . . . . . 157
High/Low Beam Changer . . . . . 178
Lamps On Reminder . . . . . . . . . 158
Heated
Rear Seats . . . . . . . . . . . . . . . . . . . . . 78
Steering Wheel . . . . . . . . . . . . . . . 131
Heated and Ventilated Front
Seats . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Heated Mirrors . . . . . . . . . . . . . . . . . . . 58
Heater
Engine . . . . . . . . . . . . . . . . . . . . . . . . 223
Heating . . . . . . . . . . . . . . . . . . . . 188, 190
High-Beam On Light . . . . . . . . . . . . 157 High-Speed Operation . . . . . . . . . . 368
Hill and Mountain Roads . . . . . . . . 206
Hill Descent Control (HDC) . . . . . 245
Hill Descent Control Light . . . . . . . 153
Hill Start Assist (HSA) . . . . . . . . . . 242
Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . 314
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
How to Wear Seat Belts
Properly . . . . . . . . . . . . . . . . . . . . . . . . 80
HVAC . . . . . . . . . . . . . . . . . . . . . . 188, 190
I Ignition Positions . . . . . . . . . . 217, 219
Ignition Transmission Lock
Check . . . . . . . . . . . . . . . . . . . . . . . . . 343
Immobilizer . . . . . . . . . . . . . . . . . . . . . . 55
Indicator
Pedestrian Ahead . . . . . . . . . . . . 154
Vehicle Ahead . . . . . . . . . . . . . . . . 154
Infants and Young Children,
Restraints . . . . . . . . . . . . . . . . . . . . . 100
Information
Publication Ordering . . . . . . . . . . 442
Infotainment . . . . . . . . . . . . . . . . . . . . 187
Infotainment System . . . . . . . . . . . . 446
Instrument Cluster . . . . . . . . . . . . . . 138
Interior Rearview Mirrors . . . . . . . . . 60
Introduction . . . . . . . . . . . . . . . . . . . . . . . 2 J Jump Starting - North
America . . . . . . . . . . . . . . . . . . . . . . . 395
K Keyless Entry
Remote (RKE) System . . . . . 33, 41
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
L Labeling, Tire Sidewall . . . . . . . . . . 360
Lamps
Daytime Running (DRL) . . . . . . 179
Dome . . . . . . . . . . . . . . . . . . . . . . . . . 183
Exterior Cargo . . . . . . . . . . . . . . . . 182
Exterior Controls . . . . . . . . . . . . . . 176
Exterior Lamps Off
Reminder . . . . . . . . . . . . . . . . . . . 178
Exterior Lighting Battery
Saver . . . . . . . . . . . . . . . . . . . . . . . 185
License Plate . . . . . . . . . . . . . . . . . 349
Malfunction Indicator
(Check Engine) . . . . . . . . . . . . . 149
On Reminder . . . . . . . . . . . . . . . . . 158
Reading . . . . . . . . . . . . . . . . . . . . . . 184
Lane Change Alert (LCA) . . . . . . . 267
Lane Departure
Warning (LDW) . . . . . . . . . . . . . . . . 269
Lane Keep Assist (LKA) . . . . . . . . 269

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-1500-11698638) - 2019 - crc - 5/16/18
Index 465Lane Keep Assist Light . . . . . . . . . 153
Lap-Shoulder Belt . . . . . . . . . . . . . . . 82
LATCH System
Replacing Parts after a
Crash . . . . . . . . . . . . . . . . . . . . . . . .117
LATCH, Lower Anchors and
Tethers for Children . . . . . . . . . . . 106
LED Lighting . . . . . . . . . . . . . . . . . . . . 347
Lighting
Entry . . . . . . . . . . . . . . . . . . . . . . . . . 184
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 184
Illumination Control . . . . . . . . . . . 183
LED . . . . . . . . . . . . . . . . . . . . . . . . . . 347
Task . . . . . . . . . . . . . . . . . . . . . . . . . . 182
Lights
Airbag Readiness . . . . . . . . . . . . . 147
Antilock Brake System
(ABS) Warning . . . . . . . . . . . . . . 152
Brake System Warning . . . . . . . 151
Charging System . . . . . . . . . . . . . 148
Check Engine (Malfunction
Indicator) . . . . . . . . . . . . . . . . . . . . 149
Cruise Control . . . . . . . . . . . . . . . . 158
Door Ajar . . . . . . . . . . . . . . . . . . . . . 158
Driver Mode Control . . . . . . . . . . 156
Electric Parking Brake . . . . . . . . 152
Electronic Stability Control
(ESC), Off . . . . . . . . . . . . . . . . . . . 155 Lights (cont'd)
Engine Coolant
Temperature Warning . . . . . . . 155
Engine Oil Pressure . . . . . . . . . . 157
Flash-to-Pass . . . . . . . . . . . . . . . . . 179
Four-Wheel-Drive . . . . . . . . . . . . . 153
Front Fog Lamp . . . . . . . . . . . . . . 158
High-Beam On . . . . . . . . . . . . . . . . 157
High/Low Beam Changer . . . . . 178
Hill Descent Control . . . . . . . . . . 153
Lane Keep Assist . . . . . . . . . . . . . 153
Low Fuel Warning . . . . . . . . . . . . 157
Seat Belt Reminders . . . . . . . . . . 146
Security . . . . . . . . . . . . . . . . . . . . . . 157
Service Electric Parking
Brake . . . . . . . . . . . . . . . . . . . . . . . 152
Tire Pressure . . . . . . . . . . . . . . . . . 156
Tow/Haul Mode . . . . . . . . . . . . . . . 153
Traction Off . . . . . . . . . . . . . . . . . . . 154
Limited-Slip Differential . . . . . . . . . 250
Locking Rear Axle . . . . . . . . . . . . . . 250
Locks
Automatic Door . . . . . . . . . . . . . . . . . 46
Delayed Locking . . . . . . . . . . . . . . . . 45
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Lockout Protection . . . . . . . . . . . . . . 46
Power Door . . . . . . . . . . . . . . . . . . . . . 45
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Loss of Control . . . . . . . . . . . . . . . . . 200
Low Fuel Warning Light . . . . . . . . . 157
Low-Profile Tires . . . . . . . . . . . . . . . . 360
Lower Anchors and Tethers
for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . . 106
Lumbar Adjustment . . . . . . . . . . . . . . 71
Front Seats . . . . . . . . . . . . . . . . . . . . . 71
M Maintenance
Records . . . . . . . . . . . . . . . . . . . . . . 428
Maintenance and Care
Additional . . . . . . . . . . . . . . . . . . . . . 422
Maintenance Schedule . . . . . . . . . 415
Recommended Fluids and
Lubricants . . . . . . . . . . . . . . . . . . . 425
Transfer Case . . . . . . . . . . . . . . . . 235
Malfunction Indicator Lamp . . . . . 149
Manual Mirrors . . . . . . . . . . . . . . . . . . 56
Manual Mode . . . . . . . . . . . . . . . . . . . 232
Manual Windows . . . . . . . . . . . . . . . . 63
Memory Features . . . . . . . . . . . . . . . . 12
Memory Seats . . . . . . . . . . . . . . . . . . . 73
Messages
Engine Power . . . . . . . . . . . . . . . . 167
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 166
Vehicle Speed . . . . . . . . . . . . . . . . 167