2019 GMC SIERRA airbag

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - CRC - 5/14/19
318 Vehicle Care
California Proposition
65 Warning
{Warning
Most 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 0342
and
Jump Starting - North America
0 400 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 098.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - CRC - 5/14/19
Vehicle Care 319
Vehicle Checks
Doing Your Own
Service Work
{Warning
It can be dangerous to work on
your vehicle if you do not have
the proper knowledge, service
manual, tools, or parts. Always
follow owner’s manual procedures
and consult the service manual
for your vehicle before doing any
service work.
If doing some of your own service
work, use the proper service
manual. It tells you much more
about how to service the vehicle
than this manual can. To order the
proper service manual, see
Publication Ordering Information
0 447.
This vehicle has an airbag system.
Before attempting to do your own
service work, see Servicing the
Airbag-Equipped Vehicle 097. If equipped with remote vehicle
start, open the hood before
performing any service work to
prevent remote starting the vehicle
accidentally. See
Remote Vehicle
Start 044.
Keep a record with all parts receipts
and list the mileage and the date of
any service work performed. See
Maintenance Records 0433.
Caution
Even small amounts of
contamination can cause damage
to vehicle systems. Do not allow
contaminants to contact the fluids,
reservoir caps, or dipsticks.
Hood
{Warning
Turn the vehicle off before
opening the hood. If the vehicle is
on, the engine will start when the
hood is opened. You or others
could be injured.
{Warning
Components under the hood can
get hot from running the engine.
To help avoid the risk of burning
unprotected skin, never touch
these components until they have
cooled, and always use a glove or
towel to avoid direct skin contact.
Clear any snow from the hood
before opening.
To open the hood: 1. Pull the hood release lever with the
isymbol. It is on the
lower left side of the instrument
panel.
2. Go to the front of the vehicle and locate the secondary
release lever under the front
center of the hood. Push the
secondary hood release lever
to the right to release.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - CRC - 5/14/19
384 Vehicle Care
Warning (Continued)
This vehicle may have a
different size spare than the
road tires originally installed
on the vehicle. When new, the
vehicle included a spare tire
and wheel assembly with a
similar overall diameter as the
road tires and wheels, so it is
all right to drive on it. The
spare tire was developed for
use on this vehicle and will not
affect vehicle handling.
{Warning
Using bias-ply tires on the
vehicle may cause the wheel
rim flanges to develop cracks
after many miles of driving.
A tire and/or wheel could fail
suddenly and cause a crash.
Use only radial-ply tires with
the wheels on the vehicle. Winter tires with the same speed
rating as the original equipment
tires may not be available for H,
V, W, Y and ZR speed rated
tires. Never exceed the winter
tires’
maximum speed capability
when using winter tires with a
lower speed rating.
If the vehicle tires must be
replaced with a tire that does not
have a TPC Spec number, make
sure they are the same size,
load range, speed rating, and
construction (radial) as the
original tires.
Vehicles that have a tire
pressure monitoring system
could give an inaccurate
low-pressure warning if non-TPC
Spec rated tires are installed.
See Tire Pressure Monitor
System 0374.
The Tire and Loading
Information label indicates the
original equipment tires on the vehicle. See
Vehicle Load Limits
0 212 for the label location and
more information about the Tire
and Loading Information label.
Different Size Tires and
Wheels
If wheels or tires are installed that
are a different size than the original
equipment wheels and tires, vehicle
performance, including its braking,
ride and handling characteristics,
stability, and resistance to rollover
may be affected. If the vehicle has
electronic systems such as antilock
brakes, rollover airbags, traction
control, electronic stability control,
or All-Wheel Drive, the performance
of these systems can also be
affected.
{Warning
If different sized wheels are used,
there may not be an acceptable
level of performance and safety if
tires not recommended for those
(Continued)

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - CRC - 5/13/19
Customer Information 447
.Vehicle make, model, and
model year
. Vehicle Identification
Number (VIN)
. Insurance company and policy
number
. General description of the
damage to the other vehicle
Choose a reputable repair facility
that uses quality replacement parts.
See “Collision Parts” earlier in this
section.
If the airbag has inflated, see What
Will You See after an Airbag
Inflates? 092.
Managing the Vehicle Damage
Repair Process
In the event that the vehicle requires
damage repairs, GM recommends
that you take an active role in its
repair. If you have a pre-determined
repair facility of choice, take the
vehicle there, or have it towed there.
Specify to the facility that any
required replacement collision parts
be original equipment parts, either
new Genuine GM parts or recycled original GM parts. Remember,
recycled parts will not be covered by
the GM vehicle warranty.
Insurance pays the bill for the repair,
but you must live with the repair.
Depending on your policy limits,
your insurance company may
initially value the repair using
aftermarket parts. Discuss this with
the repair professional, and insist on
Genuine GM parts. Remember,
if the vehicle is leased, you may be
obligated to have the vehicle
repaired with Genuine GM parts,
even if your insurance coverage
does not pay the full cost.
If another party's insurance
company is paying for the repairs,
you are not obligated to accept a
repair valuation based on that
insurance company's collision policy
repair limits, as you have no
contractual limits with that company.
In such cases, you can have control
of the repair and parts choices as
long as the cost stays within
reasonable limits.
Publication Ordering
Information
Service Manuals
Service manuals have the diagnosis
and repair information on the
engine, transmission, axle,
suspension, brakes, electrical
system, steering system, body, etc.
Customer Literature
Owner
’s manuals are written
specifically for owners and are
intended to provide basic
operational information about the
vehicle. The owner ’s manual
includes the Maintenance Schedule
for all models.
Customer literature publications
available for purchase include
owner ’s manuals, warranty
manuals, infotainment manuals, and
portfolios. Portfolios include an
owner ’s manual, warranty manual,
infotainment manual, if applicable,
and zip lock bag or pouch.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - CRC - 5/13/19
450 Customer Information
Vehicle Data
Recording and
Privacy
The vehicle has a number of
computers that record information
about the vehicle’s performance and
how it is driven. For example, the
vehicle uses computer modules to
monitor and control engine and
transmission performance, to
monitor the conditions for airbag
deployment and deploy them in a
crash, and, if equipped, to provide
antilock braking to help the driver
control the vehicle. These modules
may store data to help the dealer
technician service the vehicle.
Some modules may also store data
about how the vehicle is operated,
such as rate of fuel consumption or
average speed. These modules may
retain personal preferences, such as
radio presets, seat positions, and
temperature settings.
Event Data Recorders
This vehicle is equipped with an
event data recorder (EDR). The
main purpose of an EDR is to
record, in certain crash or near
crash-like situations, such as an air
bag deployment or hitting a road
obstacle, data that will assist in
understanding how a vehicle’s
systems performed. The EDR is
designed to record data related to
vehicle dynamics and safety
systems for a short period of time,
typically 30 seconds or less. The
EDR in this vehicle is designed to
record such data as:
.How various systems in your
vehicle were operating;
. Whether or not the driver and
passenger safety belts were
buckled/fastened;
. How far (if at all) the driver was
depressing the accelerator and/
or brake pedal; and,
. How fast the vehicle was
traveling. These data can help provide a
better understanding of the
circumstances in which crashes and
injuries occur.
Note
EDR data are recorded by your
vehicle only if a non-trivial crash
situation occurs; no data are
recorded by the EDR under normal
driving conditions and no personal
data (e.g., name, gender, age, and
crash location) are recorded.
However, other parties, such as law
enforcement, could combine the
EDR data with the type of
personally identifying data routinely
acquired during a crash
investigation.
To read data recorded by an EDR,
special equipment is required, and
access to the vehicle or the EDR is
needed. In addition to the vehicle
manufacturer, other parties, such as
law enforcement, that have the
special equipment, can read the
information if they have access to
the vehicle or the EDR.

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-1500-11698638) - 2019 - CRC - 5/13/19
464 Index
IndexA
Accessories andModifications . . . . . . . . . . . . . . . . . . 318
Accessory Power . . . . . . . . . . . . . . . 228
Active Fuel Management . . . . . . . 231
Add-On Electrical Equipment . . . 311
Adding a Snow Plow or Similar Equipment . . . . . . . . . . . . . 312
Additional Information OnStar . . . . . . . . . . . . . . . . . . . . . . . 454
Additional Maintenance and Care . . . . . . . . . . . . . . . . . . . . . . 427
Adjustments Lumbar, Front Seats . . . . . . . . . . . . 72
Air Cleaner/Filter, Engine . . . . . . . 331
Air Conditioning . . . . . . . . . . . 191, 193
Air Filter Life System . . . . . . . . . . . . . . . . . . . 330
Air Filter, Passenger
Compartment . . . . . . . . . . . . . . . . . 197
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 197
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . . . 99
How Does an AirbagRestrain? . . . . . . . . . . . . . . . . . . . . . 91
Passenger Sensing System . . . . 93
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 91 Airbag System (cont'd)
What Will You See after an
Airbag Inflates? . . . . . . . . . . . . . . . 92
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . . . 90
Where Are the Airbags? . . . . . . . . 89
Airbags Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . . . 98
Passenger Status Indicator . . . 150
Readiness Light . . . . . . . . . . . . . . 149
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . . . 97
System Check . . . . . . . . . . . . . . . . . . 87
Alarm Vehicle Security . . . . . . . . . . . . . . . . 55
Alert Lane Change . . . . . . . . . . . . . . . . . 272
Side Blind Zone (SBZA) . . . . . . 271
All-Season Tires . . . . . . . . . . . . . . . . 364
All-Terrain Tires . . . . . . . . . . . . . . . . . 365
Antilock Brake System (ABS) . . . 244 Warning Light . . . . . . . . . . . . . . . . . 155
Appearance Care Exterior . . . . . . . . . . . . . . . . . . . . . . . 408
Interior . . . . . . . . . . . . . . . . . . . . . . . . 413
Assistance Program, Roadside . . . . . . . . . . . . . . . . . . . . . . 442

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-1500-11698638) - 2019 - CRC - 5/13/19
470 Index
Lane Keep Assist Light . . . . . . . . . 156
Lap-Shoulder Belt . . . . . . . . . . . . . . . 83
LATCH SystemReplacing Parts after aCrash . . . . . . . . . . . . . . . . . . . . . . . .118
LATCH, Lower Anchors and Tethers for Children . . . . . . . . . . . 107
LED Lighting . . . . . . . . . . . . . . . . . . . . 352
Lighting Entry . . . . . . . . . . . . . . . . . . . . . . . . . 187
Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
Illumination Control . . . . . . . . . . . 186
LED . . . . . . . . . . . . . . . . . . . . . . . . . . 352
Task . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Lights Airbag Readiness . . . . . . . . . . . . . 149
Antilock Brake System
(ABS) Warning . . . . . . . . . . . . . . 155
Brake System Warning . . . . . . . 153
Charging System . . . . . . . . . . . . . 151
Check Engine (Malfunction Indicator) . . . . . . . . . . . . . . . . . . . . 151
Cruise Control . . . . . . . . . . . . . . . . 161
Door Ajar . . . . . . . . . . . . . . . . . . . . . 161
Driver Mode Control . . . . . . . . . . 158
Electric Parking Brake . . . . . . . . 154
Electronic Stability Control (ESC), Off . . . . . . . . . . . . . . . . . . . 157 Lights (cont'd)
Engine Coolant
Temperature Warning . . . . . . . 158
Engine Oil Pressure . . . . . . . . . . 159
Flash-to-Pass . . . . . . . . . . . . . . . . . 182
Four-Wheel-Drive . . . . . . . . . . . . . 155
Front Fog Lamp . . . . . . . . . . . . . . 160
High-Beam On . . . . . . . . . . . . . . . . 160
High/Low Beam Changer . . . . . 181
Hill Descent Control . . . . . . . . . . 156
Lane Keep Assist . . . . . . . . . . . . . 156
Low Fuel Warning . . . . . . . . . . . . 160
Seat Belt Reminders . . . . . . . . . . 149
Security . . . . . . . . . . . . . . . . . . . . . . 160
Service Electric Parking
Brake . . . . . . . . . . . . . . . . . . . . . . . 154
Tire Pressure . . . . . . . . . . . . . . . . . 159
Tow/Haul Mode . . . . . . . . . . . . . . . 155
Traction Off . . . . . . . . . . . . . . . . . . . 157
Limited-Slip Differential . . . . . . . . . 255
Locking Rear Axle . . . . . . . . . . . . . . 255
Locks Automatic Door . . . . . . . . . . . . . . . . . 47
Delayed Locking . . . . . . . . . . . . . . . . 46
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Lockout Protection . . . . . . . . . . . . . . 47
Power Door . . . . . . . . . . . . . . . . . . . . . 46
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Loss of Control . . . . . . . . . . . . . . . . . 203
Low Fuel Warning Light . . . . . . . . . 160
Low-Profile Tires . . . . . . . . . . . . . . . . 365
Lower Anchors and Tethers
for Children (LATCH
System) . . . . . . . . . . . . . . . . . . . . . . . 107
Lumbar Adjustment . . . . . . . . . . . . . . 72
Front Seats . . . . . . . . . . . . . . . . . . . . . 72
M
MaintenanceRecords . . . . . . . . . . . . . . . . . . . . . . 433
Maintenance and Care Additional . . . . . . . . . . . . . . . . . . . . . 427
Maintenance Schedule . . . . . . . . . 420 Recommended Fluids andLubricants . . . . . . . . . . . . . . . . . . . 430
Transfer Case . . . . . . . . . . . . . . . . 239
Malfunction Indicator Lamp . . . . . 151
Manual Mirrors . . . . . . . . . . . . . . . . . . 57
Manual Mode . . . . . . . . . . . . . . . . . . . 235
Manual Windows . . . . . . . . . . . . . . . . 64
Memory Features . . . . . . . . . . . . . . . . 13
Memory Seats . . . . . . . . . . . . . . . . . . . 74
Messages Engine Power . . . . . . . . . . . . . . . . 169
Vehicle . . . . . . . . . . . . . . . . . . . . . . . 169
Vehicle Speed . . . . . . . . . . . . . . . . 170

GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-1500-11698638) - 2019 - CRC - 5/13/19
Index 471
MirrorRear Camera . . . . . . . . . . . . . . . . . . . 61
Mirrors Automatic Dimming . . . . . . . . . . . . . 59
Automatic DimmingRearview . . . . . . . . . . . . . . . . . . . . . . 61
Blind Spot . . . . . . . . . . . . . . . . . . . . . . 59
Convex . . . . . . . . . . . . . . . . . . . . . . . . . 57
Folding . . . . . . . . . . . . . . . . . . . . . . . . . 58
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 59
Manual . . . . . . . . . . . . . . . . . . . . . . . . . 57
Manual Rearview . . . . . . . . . . . . . . . 61
Power . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Tilt in Reverse . . . . . . . . . . . . . . . . . . 60
Mirrors, Interior Rearview . . . . . . . . 61
Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 250 Driver Control . . . . . . . . . . . . . . . . . 250
Monitor System, Tire Pressure . . . . . . . . . . . . . . . . . . . . . . 374
N
NavigationConnected Services . . . . . . . . . . 460
New Vehicle Break-In . . . . . . . . . . . 220
Noise Control System . . . . . . . . . . 347
O
Odometer . . . . . . . . . . . . . . . . . . . . . . . 145 Trip . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Off-Road . . . . . . . . . . . . . . . . . . . . . . . 203 Driving . . . . . . . . . . . . . . . . . . . . . . . . 203
Recovery . . . . . . . . . . . . . . . . . . . . . 202
Oil Engine . . . . . . . . . . . . . . . . . . . . . . . . 326
Engine Oil Life System . . . . . . . 328
Engine Oil Pressure Gauge . . . 146
Pressure Light . . . . . . . . . . . . . . . . 159
Older Children, Restraints . . . . . . 100
Online Owner Center . . . . . . . . . . . 441
OnStar . . . . . . . . . . . . . . . . . . . . . . . . . 451
OnStar Additional Information . . . . . . . . . . . . . . . . . . . . 454
OnStar Emergency . . . . . . . . . . . . . 453
OnStar Overview . . . . . . . . . . . . . . . 452
OnStar Security . . . . . . . . . . . . . . . . 454
Operating Mode Overheated EngineProtection . . . . . . . . . . . . . . . . . . . 338
Operation Fog Lamps . . . . . . . . . . . . . . . . . . . 184
Outlets Power . . . . . . . . . . . . . . . . . . . . . . . . 134 Overheated Engine
Protection Operating Mode . . . . 338
Overheating, Engine . . . . . . . . . . . . 336
P
Park Shifting Into . . . . . . . . . . . . . . . . . . . 229
Shifting Out of . . . . . . . . . . . . . . . . 230
Park Assist . . . . . . . . . . . . . . . . . . . . . 259
Parking Brake and P (Park)Mechanism Check . . . . . . . . . . 348
Extended . . . . . . . . . . . . . . . . . . . . . 231
Over Things That Burn . . . . . . . 231
Parking or Backing Assistance Systems . . . . . . . . . . 259
Passenger Airbag Status
Indicator . . . . . . . . . . . . . . . . . . . . . . 150
Passenger Compartment Air Filter . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Passenger Sensing System . . . . . 93
Pedestrian Ahead Indicator . . . . . 156
Perchlorate Materials
Requirements, California . . . . . . 318
Personalization Vehicle . . . . . . . . . . . . . . . . . . . . . . . 170
Pickup Conversion to Chassis Cab . . . . . . . . . . . . . . . . . . 315