2019 GMC SIERRA DENALI roof

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - crc - 5/16/18
224 Driving and Operating
Base model shown other models
are similar
3. Remove the engine heater
connector cover by gently
prying with a flat blade tool. 4. Plug the heater cord into the
connector in the front fascia.
5. Plug the cord into a grounded
110-volt AC outlet that is
protected by a ground fault
detection function. { WarningImproper use of the heater cord
or an extension cord can damage
the cord and may result in
overheating and fire.
.
Plug the cord into a
three-prong electrical utility
receptacle that is protected
by a ground fault detection
function. An ungrounded
outlet could cause an
electric shock.
.
Use a weatherproof,
heavy-duty, 15 amp-rated
extension cord if needed.
Failure to use the
recommended extension
cord in good operating
condition, or using a
damaged heater or
extension cord, could make
(Continued)

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - crc - 5/16/18
Driving and Operating 225Warning (Continued) it overheat and cause a fire,
property damage, electric
shock, and injury.
.
Do not operate the vehicle
with the heater cord
permanently attached to the
vehicle. Possible heater
cord and thermostat
damage could occur.
.
While in use, do not let the
heater cord touch vehicle
parts or sharp edges. Never
close the hood on the
heater cord.
.
Before starting the vehicle,
unplug the cord, reattach
the cover to the plug, and
securely fasten the cord.
Keep the cord away from
any moving parts.
6. Before starting the engine, be
sure to unplug and store
the cord. The length of time the heater should
remain plugged in depends on
several factors. Ask a dealer in the
area where you will be parking the
vehicle for the best advice on this.
Retained Accessory
Power (RAP) Some vehicle accessories may be
used after the ignition is turned off.
The power windows and sunroof,
if equipped, will continue to work for
up to 10 minutes or until any door is
opened.
The infotainment system will
continue to work for 10 minutes,
until the driver door is opened,
or until the ignition is turned on or
placed in ACC/ACCESSORY. Shifting Into Park
{ WarningIt can be dangerous to get out of
the vehicle if the shift lever is not
fully in P (Park) with the parking
brake firmly set. The vehicle can
roll. If you have left the engine
running, the vehicle can move
suddenly. You or others could be
injured. To be sure the vehicle will
not move, even when you are on
fairly level ground, use the steps
that follow. With four-wheel drive,
if the transfer case is in
N (Neutral), the vehicle will be
free to roll, even if the shift lever
is in P (Park). Be sure the transfer
case is in a drive gear. If towing a
trailer, see Driving Characteristics
and Towing Tips 0 276 .
1. Hold the brake pedal down,
then set the parking brake. See
Electric Parking Brake 0 241 .

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - crc - 5/15/18
356 Vehicle Care Fuses Usage
F30 Sensing and
diagnostic module/
Parking brake
F31 Body control module 4
F32 Special equipment
option/Data link
connection
F33 Body control module 8
F34 Cargo lamp
F40 CGM
F41 Infotainment 1
F42 TCP
F43 –
F44 AVM
F45 Body control module 2
F46 Heating, ventilation,
and air conditioning/
Battery 1
F47 Instrument panel
cluster/Battery
F48 Transmission control
module Fuses Usage
F49 Body control module 1
F50 –
F51 Battery 1
F52 Battery 2
F53 –
F54 Sunroof
F55 Driver power seat
F56 DC DC TRANS 1
F57 DC DC TRANS 2
F58 Infotainment 2
Circuit
Breakers Usage
1 Accessory power
outlet 2
2 Accessory power
outlet 1/Cigarette
Lighter
3 Accessory power
outlet 3
4 Accessory power
outlet 4 Relays Usage
1 Run/Crank
2 Retained accessory
power/Accessory 1
4 Retained accessory
power/Accessory 2
5 –
Instrument Panel Fuse
Block (Left)
The left instrument panel fuse block
access door is on the driver side
edge of the instrument panel.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - crc - 5/15/18
Service and Maintenance 417ability of the strut. If the hold
open is low, service the gas
strut. See Gas Strut(s) 0 345 .
.
Inspect sunroof track and seal,
if equipped. See Sunroof 0 65 .
.
Verify spare tire key lock
operation and lubricate as
needed. See Tire Changing
0 385 .
.
Verify the spare tire is tightly
stowed under the vehicle.
Tighten as needed. See "Storing
a Flat or Spare Tire and Tools" in
Tire Changing 0 385 .
.
Visually inspect the spare tire to
ensure that it is tightly stowed
under the vehicle. Push, pull,
and try to turn the tire. If the
spare tire moves, tighten as
necessary. Verify that the wheel
retainer plate compression
spring is fully compressed.
See Tire Changing 0 385 .

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-1500-11698638) - 2019 - crc - 5/16/18
Index 467Power (cont'd)
Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Outlets . . . . . . . . . . . . . . . . . . . . . . . 132
Protection, Battery . . . . . . . . . . . . 185
Retained Accessory (RAP) . . . 225
Seat Adjustment . . . . . . . . . . . . . . . . 70
Windows . . . . . . . . . . . . . . . . . . . . . . . 63
Power Assist Steps . . . . . . . . . . . . . . 52
Pregnancy, Using Seat Belts . . . . 84
Privacy
Vehicle Data Recording . . . . . . . 445
Program
Courtesy Transportation . . . . . . 439
Prohibited Fuels . . . . . . . . . . . . . . . . 272
Proposition
65 Warning,
California . . . . . . . . . . . .313, 337, 395,
Back Cover
Publication Ordering
Information . . . . . . . . . . . . . . . . . . . . 442
R Radio Frequency Statement . . . . 443
Reading Lamps . . . . . . . . . . . . . . . . . 184
Rear Axle . . . . . . . . . . . . . . . . . . . . . . . 341
Locking . . . . . . . . . . . . . . . . . . . . . . . 250
Rear Camera Mirror . . . . . . . . . . . . . 60
Rear Seats . . . . . . . . . . . . . . . . . . . . . . 77 Rear Seats (cont'd)
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 78
Rear Storage . . . . . . . . . . . . . . . . . . . 126
Rear Vision Camera (RVC) . . . . . 254
Rear Windows . . . . . . . . . . . . . . . . . . . 65
Rearview Mirrors . . . . . . . . . . . . . . . . 60
Automatic Dimming . . . . . . . . . . . . . 60
Reclining Seatbacks . . . . . . . . . . . . . 71
Recommended
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 271
Recommended Fluids and
Lubricants . . . . . . . . . . . . . . . . . . . . . 425
Records
Maintenance . . . . . . . . . . . . . . . . . . 428
Recreational Vehicle Towing . . . . 399
Reimbursement Program,
GM Mobility . . . . . . . . . . . . . . . . . . . 437
Remote Keyless Entry
(RKE) System . . . . . . . . . . . . . . 33, 41
Remote Vehicle Start . . . . . . . . . . . . 43
Replacement Parts
Airbags . . . . . . . . . . . . . . . . . . . . . . . . . 98
Maintenance . . . . . . . . . . . . . . . . . . 427
Replacing Airbag System . . . . . . . . 98
Replacing LATCH System
Parts after a Crash . . . . . . . . . . . . 117
Replacing Seat Belt System
Parts after a Crash . . . . . . . . . . . . . 85 Reporting Safety Defects
Canadian Government . . . . . . . . 444
General Motors . . . . . . . . . . . . . . . 444
U.S. Government . . . . . . . . . . . . . 443
Restraints
Where to Put . . . . . . . . . . . . . . . . . 104
Retained Accessory
Power (RAP) . . . . . . . . . . . . . . . . . . 225
Reverse Tilt Mirrors . . . . . . . . . . . . . . 59
Ride Control Systems
Enhanced Traction
System (ETS) . . . . . . . . . . . . . . . 250
Roads
Driving, Wet . . . . . . . . . . . . . . . . . . 205
Roadside Assistance
Program . . . . . . . . . . . . . . . . . . . . . . . 437
Roof
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . 65
Rotation, Tires . . . . . . . . . . . . . . . . . . 376
Routing, Engine Drive Belt . . . . . . 432
Running the Vehicle While
Parked . . . . . . . . . . . . . . . . . . . . . . . . 229
S Safety Defects Reporting
Canadian Government . . . . . . . . 444
General Motors . . . . . . . . . . . . . . . 444

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-1500-11698638) - 2019 - crc - 5/16/18
Index 469Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . 3
System
Brake Pad Life . . . . . . . . . . . . . . . . 335
Engine Air Filter Life . . . . . . . . . . 325
Forward Collision
Alert (FCA) . . . . . . . . . . . . . . . . . . 260
Infotainment . . . . . . . . . . . . . 187, 446
Noise Control . . . . . . . . . . . . . . . . . 342
Systems
Driver Assistance . . . . . . . . . . . . . 253
T Tachometer . . . . . . . . . . . . . . . . . . . . . 143
Tailgate . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Taillamps
Bulb Replacement . . . . . . . . . . . . 347
Task Lighting . . . . . . . . . . . . . . . . . . . 182
Text Telephone (TTY) Users . . . . 436
Theft-Deterrent Systems . . . . . . . . . 55
Immobilizer . . . . . . . . . . . . . . . . . . . . . 55
Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . 358
All-Season . . . . . . . . . . . . . . . . . . . . 359
All-Terrain . . . . . . . . . . . . . . . . . . . . 360
Buying New Tires . . . . . . . . . . . . . 378
Chains . . . . . . . . . . . . . . . . . . . . . . . . 382
Changing . . . . . . . . . . . . . . . . . . . . . 385 Tires (cont'd)
Designations . . . . . . . . . . . . . . . . . 363
Different Size . . . . . . . . . . . . . . . . . 379
Full-Size Spare . . . . . . . . . . . . . . . 394
If a Tire Goes Flat . . . . . . . . . . . . 383
Inspection . . . . . . . . . . . . . . . . . . . . 375
Low Profile . . . . . . . . . . . . . . . . . . . 360
Pressure . . . . . . . . . . . . . . . . . 367, 368
Pressure Light . . . . . . . . . . . . . . . . 156
Pressure Monitor Operation . . 370
Pressure Monitor System . . . . . 369
Rotation . . . . . . . . . . . . . . . . . . . . . . 376
Sidewall Labeling . . . . . . . . . . . . . 360
Terminology and Definitions . . 364
Uniform Tire Quality
Grading . . . . . . . . . . . . . . . . . . . . . 380
Wheel Alignment and Tire
Balance . . . . . . . . . . . . . . . . . . . . . 381
Wheel Replacement . . . . . . . . . . 381
When It Is Time for New
Tires . . . . . . . . . . . . . . . . . . . . . . . . 377
Winter . . . . . . . . . . . . . . . . . . . . . . . . 359
Top Tier Fuel . . . . . . . . . . . . . . . . . . . 271
Tow/Haul Mode . . . . . . . . . . . . . . . . . 234
Tow/Haul Mode Light . . . . . . . . . . . 153
Towing
Driving Characteristics . . . . . . . . 276
Equipment . . . . . . . . . . . . . . . . . . . . 285 Towing (cont'd)
General Information . . . . . . . . . . 276
Recreational Vehicle . . . . . . . . . . 399
Trailer . . . . . . . . . . . . . . . . . . . . . . . . 281
Trailer Sway Control (TSC) . . . 293
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 398
Traction
Limited-Slip Differential . . . . . . . 250
Off Light . . . . . . . . . . . . . . . . . . . . . . 154
Traction Control/Electronic
Stability Control . . . . . . . . . . . . . . . 243
Trailer
Sway Control (TSC) . . . . . . . . . . 293
Towing . . . . . . . . . . . . . . . . . . . . . . . . 281
Trailer Towing
App . . . . . . . . . . . . . . . . . . . . . . . . . . . 296
Trailering App . . . . . . . . . . . . . . . . . . 296
Transfer Case . . . . . . . . . . . . . . . . . . 235
Transmission
Automatic . . . . . . . . . . . . . . . . . . . . . 229
Fluid, Automatic . . . . . . . . . . . . . . 325
Transportation Program,
Courtesy . . . . . . . . . . . . . . . . . . . . . . 439
Trip Odometer . . . . . . . . . . . . . . . . . . 142
Truck-Camper Loading
Information . . . . . . . . . . . . . . . . . . . . 214
Turn and Lane-Change
Signals . . . . . . . . . . . . . . . . . . . . . . . . 181