
GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - crc - 5/15/18
Instruments and Controls 169Park Assist
This allows the feature to be turned
on or off. See Assistance Systems
for Parking or Backing 0 254 .
Select Off, On, or On with Towbar.
Rear Camera Park Assist Symbols
This setting enables the Rear
Camera Park Assist Symbols. See
Assistance Systems for Parking or
Backing 0 254 .
Touch Off or On.
Rear Cross Traffic Alert
This allows the Rear Cross Traffic
Alert feature to be turned on or off.
See Assistance Systems for Parking
or Backing 0 254 .
Touch Off or On.
Comfort and Convenience
Touch and the following may
display:
.
Chime Volume
.
Reverse Tilt Mirror
.
Remote Mirror Folding Chime Volume
This determines the chime volume
level.
Touch the controls on the
infotainment display to adjust the
volume.
Reverse Tilt Mirror
This allows the feature to be turned
on or off. See Reverse Tilt Mirrors
0 59 .
Touch Off, On - Driver and
Passenger, On - Driver, or On -
Passenger.
Remote Mirror Folding
When on, the outside mirrors will
remotely fold or unfold when the
Remote Keyless Entry (RKE)
transmitter
Q or
K button is
pressed and held. See Folding
Mirrors 0 57 .
Touch Off or On. Lighting Touch and the following may
display:
.
Vehicle Locator Lights
.
Exit Lighting
Vehicle Locator Lights
This setting flashes the vehicle ’ s
headlamps when
K is pressed on
the Remote Keyless Entry (RKE)
transmitter.
Touch Off or On.
Exit Lighting
This setting specifies how long the
headlamps stay on after the vehicle
is turned off and exited.
Touch Off, 30 Seconds, 60 Seconds,
or 120 Seconds.
Power Door Locks
Touch and the following may
display:
.
Open Door Anti Lock Out
.
Auto Door Unlock
.
Delayed Door Lock

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - crc - 5/15/18
Instruments and Controls 171Remote Window Operation
If equipped, this feature enables
remote operation of the windows
with the RKE transmitter.
See Remote Keyless Entry (RKE)
System Operation (Keyless Access)
0 33 or Remote Keyless Entry
(RKE) System Operation (Key
Access) 0 41 .
Touch Off or On.
Passive Door Unlock
This allows the selection of what
doors will unlock when using the
button on the driver door to unlock
the vehicle.
Touch All Doors or Driver Door Only.
Passive Door Lock
This allows passive locking to be
turned on or off and selects
feedback.
See Remote Keyless Entry (RKE)
System Operation (Keyless Access)
0 33 or Remote Keyless Entry
(RKE) System Operation (Key
Access) 0 41 . Touch Off, On with Horn
Chirp, or On.
Remote Left in Vehicle Alert
This feature sounds an alert when
the RKE transmitter is left in the
vehicle. This menu also enables
Remote No Longer In Vehicle Alert.
Touch Off or On.
Seating Position Touch and the following may
display:
.
Seat Entry Memory
.
Seat Exit Memory
Seat Entry Memory
This feature automatically recalls
the previously stored 1 or 2 button
positions when the ignition is
changed from off to on or ACC/
ACCESSORY. See Memory Seats
0 73 .
Touch Off or On. Seat Exit Memory
This feature automatically recalls
the previously stored exit button
position when the ignition is
changed from on or ACC/
ACCESSORY to off and the driver
door is open. See Memory Seats
0 73 .
Touch Off or On.
Teen Driver See “ Teen Driver ” under “ Settings ”
in the infotainment manual.
Valet Mode This will lock the infotainment
system and steering wheel controls.
It may also limit access to vehicle
storage locations, if equipped.
To enable valet mode:
1. Enter a four-digit code on the
keypad.
2. Select Enter to go to the
confirmation screen.
3. Re-enter the four-digit code.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - crc - 5/15/18
184 Lighting + ON/OFF : Press to turn the dome
lamps on manually. Press again to
turn the dome lamps off.
Reading Lamps There are reading lamps on the
overhead console and over the rear
seats. These lamps come on when
any door is opened.
Front Reading Lamps
The front reading lamps are in the
overhead console.
Press the lamp lenses to turn the
front reading lamps on or off. Rear Reading Lamps
The rear reading lamps are over the
rear seats.
Press the lamp lens to turn the rear
reading lamps on or off. Lighting Features Entry Lighting Some exterior lamps and the interior
lamps turn on briefly at night, or in
areas with limited lighting, when
Kis pressed on the Remote Keyless
Entry (RKE) transmitter. When a
door is opened, the interior lamps
come on. After about 30 seconds
the exterior lamps turn off. Entry
lighting can be disabled manually by
changing the ignition out of the OFF
position, or by pressing the RKE
transmitter
Q button.
This feature can be changed. See
“ Vehicle Locator Lights ” under
Vehicle Personalization 0 167 .
Exit Lighting Some exterior lamps and interior
lights come on at night, or in areas
with limited lighting, when the driver
door is opened after the ignition is
turned off. The dome lamp comes
on after the ignition is turned off.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - crc - 5/16/18
Driving and Operating 219while the vehicle is off. It also
unlocks the steering column,
if equipped with a locking steering
column. Use this position if the
vehicle must be pushed or towed.
See Retained Accessory Power
(RAP) 0 225 .
From ON/RUN, push the key all the
way in toward the steering column,
then turn the key to ACC/
ACCESSORY.
If the key is left in ACC/
ACCESSORY with the engine off,
the battery could drain and the
vehicle may not start.
A warning chime will sound when
the driver door is opened and the
key is in the ignition.
2 (ON/RUN) : This position can be
used to operate the electrical
accessories and to display some
instrument cluster warning and
indicator lights. This position can
also be used for service and
diagnostics, and to verify the proper
operation of the malfunction
indicator lamp as may be required
for emission inspection purposes. The switch stays in this position
when the engine is running. The
transmission is also unlocked in this
position on automatic transmission
vehicles.
If the key is left in ON/RUN with the
engine off, the battery could drain
and the vehicle may not start.
3 (START) : This is the position that
starts the engine. When the engine
starts, release the key. The ignition
returns to ON/RUN for driving.
Ignition Positions
(Keyless Access) Vehicles equipped with Keyless
Access have pushbutton starting.
The Remote Keyless Entry (RKE)
transmitter must be in the vehicle for
the system to operate. If the
pushbutton start is not working, the
vehicle may be near a strong radio
antenna signal causing interference
to the Keyless Access system.
See Remote Keyless Entry (RKE)
System Operation (Keyless Access)
0 33 or Remote Keyless Entry
(RKE) System Operation (Key
Access) 0 41 .
To shift out of P (Park), the ignition
must be on or in Service Mode, and
the brake pedal must be applied.
{ Warning
Turning off the vehicle while
moving may cause loss of power
assist in the brake and steering
systems and disable the airbags.
While driving, only shut the
vehicle off in an emergency.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - crc - 5/16/18
226 Driving and Operating 2. Move the shift lever into the
P (Park) position by pulling the
shift lever toward you and
moving it up as far as it will go.
3. Be sure the transfer case (if
equipped) is in a drive
gear – not in N (Neutral).
4. Turn the ignition off. For Key
Access, push the ignition key
in, towards the steering column
and then turn the ignition off.
5. For Key Access, remove the
key and take it with you. If you
can leave the vehicle with the
ignition key in your hand, the
vehicle is in P (Park).
For Keyless Access, take the
Remote Keyless Entry (RKE)
transmitter with you. Leaving the Vehicle with the
Engine Running
{ WarningIt can be dangerous to leave the
vehicle with the engine running.
The vehicle could move suddenly
if the shift lever is not fully in
P (Park) with the parking brake
firmly set.
If you have four-wheel drive and
the transfer case is in N (Neutral),
the vehicle will be free to roll,
even if the shift lever is in
P (Park). So be sure the transfer
case is in a drive gear – not in
N (Neutral).
And, if you leave the vehicle with
the engine running, it could
overheat and even catch fire. You
or others could be injured. Do not
leave the vehicle with the engine
running unless you have to. If you have to leave the vehicle with
the engine running, be sure the
vehicle is in P (Park) and the
parking brake is firmly set before
you leave it. After moving the shift
lever into P (Park), hold the regular
brake pedal down. Then, see if you
can move the shift lever away from
P (Park) without first pulling it toward
you. If you can, it means that the
shift lever was not fully locked into
P (Park).
Torque Lock If you are parking on a hill and you
do not shift the transmission into
P (Park) properly, the weight of the
vehicle may put too much force on
the parking pawl in the
transmission. You may find it difficult
to pull the shift lever out of P (Park).
This is called torque lock. To
prevent torque lock, set the parking
brake and then shift into P (Park)
properly before you leave the
driver seat.
When you are ready to drive, move
the shift lever out of P (Park) before
you release the parking brake.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - crc - 5/15/18
Vehicle Care 313
California Proposition
65 Warning
{ WarningMost motor vehicles, including
this one, as well as many of its
service parts and fluids, contain
and/or emit chemicals known to
the State of California to cause
cancer and birth defects or other
reproductive harm. Engine
exhaust, many parts and
systems, many fluids, and some
component wear by-products
contain and/or emit these
chemicals. For more information
go to www.P65Warnings.ca.gov/
passenger-vehicle.
See Battery - North America 0 337
and Jump Starting - North America
0 395 and the back cover. California Perchlorate
Materials Requirements Certain types of automotive
applications, such as airbag
initiators, seat belt pretensioners,
and lithium batteries contained in
Remote Keyless Entry transmitters,
may contain perchlorate materials.
Special handling may be necessary.
For additional information, see
www.dtsc.ca.gov/hazardouswaste/
perchlorate.
Accessories and
Modifications Adding non-dealer accessories or
making modifications to the vehicle
can affect vehicle performance and
safety, including such things as
airbags, braking, stability, ride and
handling, emissions systems,
aerodynamics, durability, and
electronic systems like antilock
brakes, traction control, and stability
control. These accessories or
modifications could even cause
malfunction or damage not covered
by the vehicle warranty. Damage to suspension components
caused by modifying vehicle height
outside of factory settings will not be
covered by the vehicle warranty.
Damage to vehicle components
resulting from modifications or the
installation or use of non-GM
certified parts, including control
module or software modifications, is
not covered under the terms of the
vehicle warranty and may affect
remaining warranty coverage for
affected parts.
GM Accessories are designed to
complement and function with other
systems on the vehicle. See your
dealer to accessorize the vehicle
using genuine GM Accessories
installed by a dealer technician.
Also, see Adding Equipment to the
Airbag-Equipped Vehicle 0 97 .

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 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